Universal Volume Manager GUI reference

External Storage window

Use this window to view external storage systems.

You can perform these operations from the window:

Information areas in this window:

Summary
External Storage Systems tab
External Paths tab
iSCSI Paths tab

Summary

Displays summary information for external storage.

Item	Description
Number of External Storage Systems	Number of external storage systems in which mapped external volumes reside.
Number of External Paths	Number of external paths.
Number of iSCSI Paths	Number of iSCSI paths of the local storage system set for connection to external storage systems.
Number of External Volumes	Number of mapped external volumes.
External Volume Capacity	Total capacity of mapped external volumes.

External Storage Systems tab

Displays the external storage systems in which mapped external volumes reside.

Item	Description
Vendor / Model / Serial Number	Identifying information for the selected external storage system. When the link is clicked, more information for the system is shown.
Status	Any of the following statuses can display for the external system. Normal: There are no problems, the system is usable. Disconnect: The external system or one of its mapped volumes has been intentionally disconnected. Checking: The system is checking the mapping path status. Unknown: The status of the mapping path is not known. Cache Destage: Writing of data from cache memory to the volume is in progress. Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The mapping path is blocked. Destage Failed: The writing of data from cache memory to the volume failed.
Number of External Path Groups	Number of external path groups in the external system.
Add External Volumes	When clicked, launches the Add External Volumes window.
Disconnect External Storage Systems	When clicked, launches the Disconnect External Storage Systems window.
Reconnect External Storage Systems	When clicked, launches the Reconnect External Storage Systems window.
Edit Policies*	When clicked, launches the Edit Policies window.
Export*	When clicked, allows you to save table information to a file.
Notes: * Appears when you click More Actions.

External Paths tab

Displays the paths connecting mapped external volumes in the external system to your storage system.

Item	Description
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. TCP Port Number¹: Displays the target TCP port number when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.
Vendor / Model / Serial Number	Identifying information for the external system.
Status	Status of external paths. Normal: There are no problems, the system is usable. Disconnect: The path has been intentionally disconnected. Checking: The system is checking the external path status. Unknown: The status of the external path is not known. Warning: There are external paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The external path is blocked.
QDepth	Number of Read/Write commands that can be queued to the external volume. 8 is set by default. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout(sec.)	Number of seconds that should pass before I/O to the external volume times out. 15 seconds is the default.
Blocked Path Monitoring (sec.)	Time that will elapse from the time that a path goes down to the time when the external volume is blocked. 10 seconds is the default.
Disconnect External Paths	When clicked, launches the Disconnect External Paths window.
Reconnect External Paths	When clicked, launches the Reconnect External Paths window.
Edit External WWNs	When clicked, launches the Edit External WWNs window.
Edit External iSCSI Targets²	When clicked, launches the Edit External iSCSI Targets window.
Edit Policies²	When clicked, launches the Edit Policies window.
Export²	When clicked, allows you to save table information to a file.
Does not appear by default. To display the item, change the settings in the Column Settings window. Appears when you click More Actions.

iSCSI Paths tab

Item	Description
Add iSCSI Paths button	Displays Add iSCSI Paths window.
Edit iSCSI Targets button	Displays Edit iSCSI Targets window.
Delete iSCSI Paths button	Displays Delete iSCSI Paths window.
Test Login iSCSI Target*	Executes login test for the iSCSI target.
Export*	Displays the window to save table information to a file.
Local	Displays the local storage system port information. Port ID: Displays the port ID. Virtual Port ID: Displays the virtual port ID. CHAP User Name: Displays the CHAP user name, if specified.
Remote	Displays the remote storage system port information. IP Address: Displays the IP address. TCP Port Number: Displays the TCP port number. iSCSI Target Name: Displays the iSCSI target name. Authentication Method: Displays the method for authentication. Mutual CHAP: Displays the mutual CHAP setting. CHAP User Name: Displays the CHAP user name, if specified.
Used	Displays whether volume is mapped as an external volume. Yes: Used as an external path. No: Not used as an external path.
Notes: * Appears when you click More Actions.

Selected external storage system window

Use this window to view information about the selected external storage system.

You can perform these operations from the window:

Mapping an external volume
Adding an external path to an existing path group
Changing external path priority
Removing or replacing an external path
External volume policy settings and functions
Export table information to a file.

Summary

Displays summary information about the selected external storage.

Item	Description
Status	Status of external storage systems. Normal: There are no problems, the system is usable. Disconnect: The external system or one of its mapped volumes has been intentionally disconnected. Checking: The system is checking the mapping path status. Unknown: The status of the mapping path is not known. Cache Destage: Writing of data from cache memory to the volume is in progress. Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The mapping path is blocked. Destage Failed: The writing of data from cache memory to the volume failed.
Vendor / Model / Serial Number	Identifying information for the external system.
Number of External Path Groups	Number of external path groups in the external system.
Number of External Volumes	Number of mapped external volumes.
External Volume Capacity	Total capacity of mapped external volumes.

External Path Groups tab

Displays the external path groups in which external paths are grouped.

Item	Description
External Path Group ID	Name of the external path group. When the link is clicked, the list of the group's external paths displays.
Status	Status of external path groups. Normal: There are no problems, the path group is usable. Disconnect: The path group has been intentionally disconnected. Checking: The system is checking the mapping path status. Unknown: The status of the mapping path is not known. Cache Destage: The writing of data from cache memory to the external volume is in progress. Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The mapping path is blocked. Destage Failed: The writing of data from cache memory to the volume is failed.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port Mixed: Configuration with Fibre Channel and iSCSI ports
Top Priority Path	Displays the external path that has the highest priority. Port ID: Displays the external port of the local storage system. Virtual Port ID: Displays the virtual port of the local storage system when the port type is iSCSI. External IP Address : For iSCSI ports, displays the target port IP address. External TCP Port Number*: For iSCSI ports, displays the target TCP port number. External WWN / iSCSI Target Name: - For Fibre Channel ports, displays the WWN of the target port. - For iSCSI ports, displays the iSCSI target name.
Number of External Paths	Number of external paths in the path group.
Number of External Volumes	Number of external volumes using the external path group.
Add External Volumes	When clicked, launches the Add External Volumes window.
Edit External Path Configuration	When clicked, launches the Edit External Path Configuration window.
Edit Policies	When clicked, launches the Edit Policies window.
Export	When clicked, allows you to save table information to a file.
Notes: * Does not appear by default. To display the item, change the settings in the Column Settings window.

Selected external path group window

Use this window to view the mapped external volumes using the external path, and view the external paths in the path group.

You can perform these operations from the window.

Mapping an external volume
Edit Cache Mode and Inflow Control settings for individual mapped volumes (see Editing mapping policies for external volumes ).
View path status and external LUN information (see the Status description in the External Storage Systems tab section).
Deleting an external volume mapping
Disconnecting a single mapped volume
Reconnecting a single mapped volume
Changing the MP unit of an external volume
External volume policy settings and functions
Export table information to a file (see the Export button description in the External Storage Systems tab section).

Summary

Displays summary information about the selected external path group.

Item	Description
Status	Status of path groups. Normal: There are no problems, the path group is usable. Disconnect: The path group has been intentionally disconnected. Checking: The system is checking the mapping path status. Unknown: The status of the mapping path is not known. Cache Destage: The writing of data from cache memory to the external volume is in progress. Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The mapping path is blocked. Destage Failed: The writing of data from cache memory to the volume is failed.
Vendor / Model / Serial Number	Identifying information for the external system.
Number of External Paths	Number of external paths in the external path group.
Number of External Volumes	Number of mapped external volumes using the external path group.
External Volume Capacity	Total capacity of mapped external volumes using the path group.

Mapped Volumes tab

Displays the external volumes mapped to your storage system using the selected path group.

Item	Description
Parity Group ID	Displays parity group numbers for the mapped external volumes. When the link is clicked, a list of LDEVs in the mapped volume and parity group displays. When the link is clicked, a list of LDEVs in the mapped volume and parity group displays.
Status	Status of the external volume. Normal: There are no problems, the volume is usable. Disconnect: The external system or one of its mapped volumes has been intentionally disconnected. Checking: The system is checking the mapping path status Unknown: The status of the mapping path is not known. Cache Destage: Writing of data from cache memory to the volume is in progress. Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The mapping path is blocked. Destage Failed: The writing of data from cache memory to the volume failed.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Device Name	Product ID of Standard Inquiry. This is the name defined by the standard body that controls SCSI. This name varies according to the storage system vendor. For example, for some enterprise storage systems, this field displays the emulation type.
Number of LDEVs	Number of LDEVs created in the external volume.
Capacity	Capacity of the external volume.
Volume Properties	Identification number of the external volume. The value is used by UVM to identify the LUN across multiple paths. The value is provided by the external system and might reflect internal numbering.
Device ID	Identification number of the external volume.
Drive Info	Information about the external volume's drive type. SATA displays when the external volume is a SATA drive of the following storage systems: Virtual Storage Platform Universal Storage Platform V/VM HUS/AMS/WMS SMS Thunder 9500V SSD displays when the external volume is the SSD of the following storage systems: VSP Gx00 models, VSP Fx00 models VSP G1x00 and VSP F1500 HUS VM Storage Platform Virtual Storage Platform Universal Storage Platform V/VM
MP Unit ID	ID of the MP unit allocated to the external volume.
Path Mode	Path mode for the external volume's external path. Single: Ordinarily, only one external path is used even if alternate paths are set. Alternate paths are available in case of failure. Multi: Multiple paths are used at the same time. ALUA: Like Multi, all paths are used; however, they are not used when connected to ports in Passive status. See External paths for more information.
Path Mode on Profile¹	Displays the path mode on the profile information of the external storage system. Single: Ordinarily, only one external path is used even if alternate paths are set. Multi: When alternate paths are set, external paths from several ports are used simultaneously with load balancing.
ALUA Settable¹	Displays whether ALUA can be set as the Path Mode in the external storage system. Enable: Enables ALUA Mode. Disable: Disables ALUA Mode.
ALUA Permitted¹	Displays whether ALUA can be set as the Path Mode in the local storage system. Enable: ALUA Mode is used. Disable: ALUA Mode is not used.
Load Balance Mode	Displays I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance.
Cache Mode	Write data from the host to the external system is propagated synchronously (Disable) or asynchronously (Enable). When nondisruptive migration is specified as the Attribute, the cache modes are displayed. Through: Transfers write and read requests from the host to the external storage system. The local system's cache is not used. Write Sync: Reflects write data from the host to the external storage system synchronously. If read or write is performed while data is being written to the external storage system, the read or write operation waits until the ongoing write operation is completed. Check Condition : Indicates that write or read commands from the host were rejected. Pending : Holds write and read commands from the host. While cache mode operations are in progress, status is reported for cache mode changes. (Changing): Transition to the displayed cache mode is in progress. (Error): Transition to the displayed cache mode has failed and maintenance work is required.
Inflow Control	Write operation to cache memory is limited (Enable) or continued (Disable) when the write operation to the external volume cannot be performed.
Attribute	Displays the attribute of the parity group. Nondisruptive migration: Parity group that has the nondisruptive migration attribute A blank displays if no attribute is set.
Data Direct Mapped LDEV¹	Displays the LDEV ID of the mapped DP-VOL. If the Data Direct Mapping attribute is disabled, a hyphen is displayed. If a V-VOL that has the Data Direct Mapping attribute is not set to the pool that has the Data Direct Mapping attribute, a blank is displayed. When clicked, launches the LDEV Properties window.
Add External Volumes	Displays the Add External Volumes window.
Edit External Volumes	Displays the Edit External Volumes window.
View External LUN Properties	View external system LUN information for the external volume, as well as external and mapping path information in the Displays the View External LUN Properties window.
Delete External Volumes²	When clicked, launches the Delete External Volumes window.
Disconnect External Volumes²	When clicked, launches the Disconnect External Volumes window.
Reconnect External Volumes²	When clicked, launches the Reconnect External Volumes window.
Assign MP Unit ²	When clicked, launches the Assign MP Unit window.
Edit Policies²	When clicked, launches the Edit Policies window.
Export²	When clicked, allows you to save table information to a file.
Notes: Does not appear by default. To display the item, change the setting in the Column Settings window of the table option. Appears when you click More Actions. If an MP unit is blocked due to a failure, the processing to be performed by the MP unit where the failure occurred is taken over by another MP unit. See Selected external path group window.

External Paths tab

Displays the external paths within the selected path group.

Item	Description
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. TCP Port Number^*: Displays the target TCP port number when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.
Status	Status of external paths. Normal: There are no problems, the system is usable. Disconnect: The path has been intentionally disconnected. Checking: The system is checking the external path status. Unknown: The status of the external path is not known. Warning: There are external paths whose status is not normal. You can check their status in the View External LUN Properties window. Blockade: The external path is blocked.
QDepth	Number of Read/Write commands that can be queued to the external volume. 8 is set by default. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout(sec.)	Number of seconds that should pass before I/O to the external volume times out. 15 seconds is the default.
Blocked Path Monitoring (sec.)	Time that will elapse from the time that a path goes down to the time when the external volume is blocked. 10 seconds is the default.
Edit External Path Configuration	When clicked, launches the Edit External Path Configuration window.
Edit Policies	When clicked, launches the Edit Policies window.
Export	When clicked, allows you to save table information to a file.
Notes: * Does not appear by default. To display the item, change the settings in the Column Settings window.

Add External Volumes wizard

Use this wizard to connect external volumes to your storage systems.

See Mapping an external volume for instructions.

Each window in the wizard is identified below the wizard title. The windows are:

Select External Path Group window
Add External Volumes window
Add External Volumes confirmation window

Select External Path Group window

Part of the Add External Volumes wizard, use this window to select and set parameters for an external path group.

Item	Description
By New External Path Group	Option for setting up a new external path group.
Create External Path Group	When clicked, launches the Create External Path Group window.
External Path Group ID	Number to identify the new external path group. Blank by default. Specify a value in the following range: 0 to 63,231.
By Existing External Path Group	Option for using an existing external path group.

Available External Path Groups table

Item	Description
External Path Group ID	Name of the external path group.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port Mixed: Configuration with Fibre Channel port and iSCSI port
External Path (Highest Priority)	Displays the external path that has the highest priority. Port ID: Displays the external port of the local storage system. Virtual Port ID: Displays the virtual port of the local storage system when the port type is iSCSI. External IP Address : For iSCSI ports, displays the target port IP address. External TCP Port Number*: For iSCSI ports, displays the target TCP port number. External WWN / iSCSI Target Name: - For Fibre Channel ports, displays the WWN of the target port. - For iSCSI ports, displays the iSCSI target name.
Vendor / Model / Serial Number	Identifying information for the external system.
Number of Paths	Number of external paths in the path group.
Notes: * Does not appear by default. To display the item, change the settings in the Column Settings window.

Add External Volumes window

Part of the Add External Volumes wizard, use this window to display discovered external volumes and to make related selections.

Discovered External Volumes

Item	Description
LUN ID(Highest Priority)	The external LUN with the highest priority. "?" indicates that an external volume is not found. In this case, confirm the connection with the external system, and then perform the operation again.
Device Name	Name of the storage system reported to the host by the external volume. The displayed name differs by vendor. For some enterprise storagesystems, this field displays emulation type.
Capacity	External volume capacity.
Volume Properties	Identification number of the external volume. The value is used by UVM to identify the LUN across multiple paths. The value is provided by the external system and might reflect internal numbering.
Device ID	Identification number of the external volume.
Drive Info	Information about the external volume's drive type. SATA displays when the external volume is a SATA drive of following storage systems. Virtual Storage Platform Universal Storage Platform V/VM HUS/AMS/WMS SMS Thunder 9500V SSD displays when the external volume is the SSD of following storage systems. VSP Gx00 models, VSP Fx00 models VSP G1x00, VSP F1500 HUS VM Storage Platform Virtual Storage Platform Universal Storage Platform V/VM
Path Mode	Displays operation mode of the external path. Single: Ordinarily, only one external path is used even if alternate paths are set, In Single mode, alternate paths are used only in case of maintenance work failure. Multi: When alternate paths are set, external paths from several ports are simultaneously used with load balancing.
ALUA Settable	Displays whether ALUA can be set as the Path Mode in the external storage system. Enable: Enables ALUA Mode. Disable: Disables ALUA Mode.
Discovery Result	Displays one of the following: Normal An error code When clicked, the link displays the Discovery Result Detail window with details of the search.
Initial Parity Group ID	An external volume group number and sequence number. Values range from 1 - 1 (default) to 16384 - 4096.
Data Direct Mapping	Specify whether to enable the Data Direct Mapping attribute. Enable: Enables the Data Direct Mapping attribute. Disable: Disables the Data Direct Mapping attribute (Default).
Allow Simultaneous Creation of LDEVs	LDEVs are automatically created in the external volume when Yes is selected. If No is selected, you must create LDEVs manually. By default, the value set in the Edit Policies window is set. If Enable is specified for Data Direct Mapping, Yes is selected automatically.
Use External Storage System Configuration	If Yes is specified in “Allow Simultaneous Creation of LDEVs”, the external volume's configuration for the LDEVs is used when Yes is selected. If No is selected, you must configure LDEVs manually. By default, Yes is selected. If Enable is specified for Data Direct Mapping, Yes is selected automatically.
LDEV Name	Requires a prefix character and initial number, 32 characters maximum (including the initial number). Numbering rule for Initial Number: 1: Total of 9 numbers (1, 2, 3, ...9) 08: Total of 92 numbers (08, 09, 10, ...99) 23: Total of 77 numbers (23, 24, 25, ...99) 098: Total of 902 numbers (098, 099, 100, ...999)
Options	Optional default settings for the external volume. Options can be affected by values entered in previous fields.
Initial LDEV ID	The storage system searches from this number in ascending order and allocates the next available LDEV ID to the external volume.
LDKC	LDKC number. 00 can be set for the value.
CU	CU number. Possible values for each model: VSP G350, VSP F350: 00 to 3F VSP G370, VSP F370: 00 to 7F VSP G700, VSP F700: 00 to BF VSP G1000, VSP G1500, VSP F1500 , VSP G900, VSP F900: 00 to FE Default is 00.
DEV	LDEV identifier. Value between 00 and FF can be set. Default is 00.
Interval	Interval between the LDEV IDs can be selected. The specified interval will be kept and the LDEV ID will be set to each LDEV in external volume. From 0 (default) to 255.
View LDEV IDs	Shows used, available, and disabled LDEV IDs.
Number of LDEVs per External Volume	Maximum number of LDEVs to be created in the external volume when the volume is mapped. Depends on base emulation type and the capacity of the external volume. If Enable is specified for Data Direct Mapping, 1 is selected automatically.
Cache Partition	CLPR for accessing the external volume. The range can be from CLPR0 to CLPR31. The default is the value set in the Edit Policies window. See External volume policy settings and functions for more information.
Cache Mode	Enable: Write data from the host is propagated asynchronously Disable: Write data from the host is propagated synchronously See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed. See External volume policy settings and functions for more information.
Use ALUA as Path Mode	Select whether ALUA is used as the Path Mode. The default is Enable if ALUA mode can be set as the Path Mode. Otherwise, the default is Disable. Enable: Enables ALUA mode. Disable: Disables ALUA mode.
Load Balance Mode	Select I/O load balance system for external storage system. Depends on the selected external volume(s): If Enable is set for ALUA Settable on the external volume, Normal Round-robin is set for Load Balance Mode automatically. If Disable is set for ALUA Settable, Disable is set for Load Balance Mode automatically. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance. The default is the value set in the Edit Policies window. If the product name of an external storage system is displayed as (generic), Depends on the selected external volume(s) is used by default. This item cannot be selected when the path mode of the external volume is Single or Disable is selected for Use ALUA as Path Mode.
MP Unit ID	MP unit ID for the external volume. You can select MPU-10 or MPU-20. Auto (default): Unit is automatically selected by the system. If Auto cannot be selected, the unit with lowest number is used.
Add	When clicked, moves selected volumes to the Selected External Volumes list.

Selected External Volumes

Displays selected external volumes.

Item	Description
LUN ID(Highest Priority)	External volume's LUN with the highest priority.
Device Name	Name of the storage system reported to the host by the external volume. The displayed name differs by vendor. For some enterprise storage systems, this field displays emulation type.
Volume Properties	Identification number of the external volume. The value is used by UVM to identify the LUN across multiple paths. The value is provided by the external system and might reflect internal numbering.
Device ID	External volume's identification number.
Drive Info	Information about the external volume's drive type. SATA displays when the external volume is a SATA drive of following storage systems. Virtual Storage Platform Universal Storage Platform V/VM HUS/AMS/WMS SMS Thunder 9500V SSD displays when the external volume is the SSD of following storage systems. VSP Gx00 models, VSP Fx00 models VSP G1000, VSP G1500, VSP F1500 HUS VM Storage Platform Virtual Storage Platform Universal Storage Platform V/VM
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Number of LDEVs	External volume's number of LDEVs.
Capacity	External volume's capacity.
CLPR	CLPR used for accessing to the mapped external volume.
Cache Mode	Enable: Write data from the host is propagated asynchronously Disable: Write data from the host is propagated synchronously See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed. See External volume policy settings and functions for more information.
Path Mode	Displays operation mode of the external path. Single: Ordinarily, only one external path is used even if alternate paths are set, In Single mode, alternate paths are used only in case of maintenance work failure. Multi: When alternate paths are set, external paths from several ports are simultaneously used with load balancing. ALUA: When alternate paths are set, external paths from several ports are simultaneously used with load balancing. External paths connected to ports in Passive status are not used.
ALUA Permitted	Displays whether ALUA can be set as the Path Mode in the local storage system. Enable: ALUA Mode is used. Disable: ALUA Mode is not used.
Load Balance Mode	Displays I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance.
MP Unit ID	ID of the MP unit of the external volume.
Attribute	Attribute of the external volume.
Change Settings	When clicked, the Change Setting dialog box opens.
Remove	When clicked, removes external volumes from the Selected External Volumes table.
Path Detail*	When clicked, the External LUN Properties window opens and you can review the path details of the selected external volume.
LDEV Detail*	When clicked, the External LDEV Properties window opens and you can review the details of the LDEV to be created from the selected external volume.
Notes: * Appears when you click More Actions.

Add External Volumes confirmation window

Item	Description
Task Name	Identifies the operation within the system when Apply is clicked. Allows you to track the status of the operation.
External Path Group ID	Name of the external path group.
Vendor / Model / Serial Number	Identifying information for the external system.
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.
LUN ID(Highest Priority)	The LUN which is connected to the external path with the highest priority.
Device Name	Name of the storage system reported to the host by the external volume. The displayed name differs by vendor. For some enterprise storage systems, this field displays emulation type.
Volume Properties	Identification number of the external volume. The value is used by UVM to identify the LUN across multiple paths. The value is provided by the external system and might reflect internal numbering.
Device ID	Identification number of the external volume.
Drive Info	Information about the external volume's drive type. SATA displays when the external volume is a SATA drive of following storage systems. Virtual Storage Platform Universal Storage Platform V/VM HUS/AMS/WMS SMS Thunder 9500V SSD displays when the external volume is the SSD of following storage systems. VSP Gx00 models, VSP Fx00 models VSP G1000, VSP G1500, VSP F1500 HUS VM Storage Platform Virtual Storage Platform Universal Storage Platform V/VM
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Number of LDEVs	External volume's number of LDEVs.
Capacity	External volume capacity.
CLPR	CLPR used for accessing to the mapped external volume.
Cache Mode	Enable: Write data from the host is propagated asynchronously Disable: Write data from the host is propagated synchronously See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed. See External volume policy settings and functions for more information.
Path Mode	Displays operation mode of the external path. Single: Ordinarily, only one external port is used even if alternate paths are set. In Single mode, alternate paths are used only in case of maintenance work failure. Multi: When alternate paths are set, external paths from several ports are simultaneously used with load balancing. ALUA: When alternate paths are set, external paths from several ports are simultaneously used with load balancing. External paths connected to ports in Passive status are not used.
ALUA Permitted	Displays whether ALUA can be set as the Path Mode in the local storage system. Enable: ALUA Mode is used. Disable: ALUA Mode is not used.
Load Balance Mode	Displays I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance.
MP Unit ID	IDs of the external volume's MP unit.
Attribute	External volume's attribute.
LDEV Detail	Displays the External LDEV Properties window and you can review the details of the selected external volume.

NoteInformation in this Confirm window assumes only a single task is performed. If multiple tasks are performed, the window displays all configuration items. For information on these items, return to the configuration window by clicking Back and refer to the topic on each configuration window by clicking Help.

Edit Policies window

Use this window to change settings for mapped external volumes.

Item	Description
Allow Simultaneous Creation of LDEVs	If Yes is specified, LDEVs are automatically created in the external volume. If No is selected, you must create LDEVs manually.
Use External Storage System Configuration	If Yes is specified in "Allow Simultaneous Creation of LDEVs", the external volume's configuration for the LDEVs is used when Yes is selected. If No is selected, you must configure LDEVs manually.
Number of LDEVs per External Volume	Number of LDEVs to be created in the local system when the volume is mapped. Depends on the capacity of the external volume .
Cache Partition	CLPR for accessing the external volume.
Cache Mode	Enable: Write data from the host is propagated asynchronously Disable: Write data from the host is propagated synchronously See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed.
Load Balance Mode	Select I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance. The default is Normal Round-robin.
MP Unit ID	MP unit ID for the external volume. You can select MPU-10 or MPU-20. Auto (default): The unit is automatically selected by the system. If Auto cannot be selected, the unit with the lowest number is the default.

Edit External Volumes wizard

Use this wizard to change settings for a mapped external volume.

The windows in the wizard are:

Edit External Volumes window
Edit External Volumes confirmation window

Edit External Volumes window

Item	Description
Cache Mode	Enable: Write data from the host is propagated asynchronously. Disable: Write data from the host is propagated synchronously. See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed.
Use ALUA as Path Mode	Select whether ALUA is used as the Path Mode. Enable: Enables ALUA mode. Disable: Disables ALUA mode. The value that is set for the selected external volume is used as the default. If two or more external volumes with different values are selected, the item is placed in non-selected status. If the ALUA mode cannot be set for the selected external volume, Enable cannot be selected.
Load Balance Mode	Select I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance. The value that is set for the selected external volume is used as the default. If two or more external volumes with different values are selected, the item is placed in non-selected status.

Edit External Volumes confirmation window

Item	Description
Parity Group ID	Displays parity group numbers.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Cache Mode	Enable: Write data from the host is propagated asynchronously Disable: Write data from the host is propagated synchronously When nondisruptive migration is specified as the Attribute, the cache modes are displayed. Through: Transfers write and read requests from the host to the external storage system. The local system's cache is not used. Write Sync: Reflects write data from the host to the external storage system synchronously. If read or write is performed while data is being written to the external storage system, the read or write operation waits until the ongoing write operation is completed. Check Condition : Indicates that write or read commands from the host were rejected. Pending : Holds write and read commands from the host. While cache mode operations are in progress, status is reported for cache mode changes. (Changing): Transition to the displayed cache mode is in progress. (Error): Transition to the displayed cache mode has failed and maintenance work is required. See Cache use and external storage performance for more information.
Inflow Control	Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed. Disable: Allows write data to be written to cache when the write operation cannot be performed.
Path Mode	Displays the external path of the external volume. Single: One external path is used, with alternate paths available in case of failure. Multi: Multiple paths are used at the same time. ALUA: Like Multi, all paths are used; however, they are not used when connected to ports in Passive status. For more information, see External paths.
ALUA Permitted	Displays whether ALUA can be set as the Path Mode in the local storage system. Enable: ALUA Mode is used. Disable: ALUA Mode is not used.
Load Balance Mode	Displays I/O load balance system for external storage system. Normal Round-robin: Performs load balance in round-robin system. Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O. Disable: Performs I/O operation with a single path, without load balance.

Edit External Path Configuration wizard

Use this wizard to add and remove external paths to a path group, and to raise and lower path priority.

See Adding an external path to an existing path group for instructions.

The windows in the wizard are:

Edit External Path Configuration window
Edit External Path Configuration confirmation window

Edit External Path Configuration window

Only the external paths that are connected with the port assigned to the user are displayed.

Item	Description
External Path Group ID	Name of the external path group.
External Paths	External path information.
Discover External Target Ports	When clicked, opens the Discover External Target Ports window, which lists available external ports.
External Storage System	The external system selected (greyed out). If no system was selected, allows you to select the system from a list.
Available External Paths
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.
Add	When clicked, moves the selected paths to the Selected External Paths list.
Remove	When clicked, removes the selected paths from the Selected External Paths.

Selected External Paths

Item	Description
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.
Raise Priority	Raise the priority of the selected external path.
Lower Priority	Lower the priority of the selected external path.

Edit External Path Configuration confirmation window

Item	Description
Task Name	Identifies the operation within the system when Apply is clicked. Allows you to track the status of the operation.
External Path Group ID	Displays the name of the external path group.
Vendor / Model / Serial Number	Identifying information for the external system.
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about the target port of the external storage system. IP Address: Displays the target port IP address when the port type is an iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.

Edit External WWNs wizard

Use this wizard to change the external system's WWN port setting.

See Changing the port settings of an external storage system for instructions.

The windows in the wizard are:

Edit External WWNs window
Edit External WWNs confirmation window

Edit External WWNs window

Item	Description
QDepth	Number of Read/Write commands that can be queued to the external volume. The numbers 2 through 128 can be entered. When two or more external paths with different values are selected, the field is blank. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout	Number of seconds that should pass before I/O to the external volume times out. The numbers 5 through 240 can be entered. When two or more external paths with different values are selected, the field is blank.
Blocked Path Monitoring	Time that elapses from the time that a path goes down to the time when the external volume is blocked. The numbers 5 through 180 can be entered. When two or more external paths with different values are selected, the field is blank.

Caution

If you want to change multiple parameters for an external WWN more than once, wait until the currently applied task finishes, and then perform the next setting change.

If you make a setting change for the next task before completing the last, the setting will be applied to the next task only. The result might be different from what you expected.

Edit External WWNs confirmation window

Item	Description
Port ID	Displays the external port of the local storage system.
External WWN	Displays the WWN of the external storage system. The external WWN shows the target port.
QDepth	Number of Read/Write commands that can be queued to the external volume. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout(sec.)	Number of seconds that should pass before I/O to the external volume times out.
Blocked Path Monitoring (sec.)	Time that will elapse from the time that a path goes down to the time when the external volume is blocked.

Edit External iSCSI Targets wizard

Use this wizard to change the external iSCSI targets. See Changing the port settings of an external storage system for instructions.

The windows in the wizard are:

Edit External iSCSI Targets window
Edit External iSCSI Targets confirmation window

Edit External iSCSI Targets window

Item	Description
QDepth	Number of Read/Write commands that can be queued to the external volume. The numbers 2 through 128 can be entered. When two or more external paths with different values are selected, the field is blank. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout	Number of seconds that should pass before I/O to the external volume times out. The numbers 5 through 240 can be entered. When two or more external paths with different values are selected, the field is blank.
Blocked Path Monitoring	Time that elapses from the time that a path goes down to the time when the external volume is blocked. The numbers 5 through 180 can be entered. When two or more external paths with different values are selected, the field is blank.

Edit External iSCSI Targets confirmation window

Item	Description
Port ID	Displays the port connected to the external storage system for the local storage system.
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the target port information for the external storage system. IP Address: Displays the IP address of the target port. iSCSI Target Name: Displays the iSCSI target name of the target port.
QDepth	Number of Read/Write commands that can be queued to the external volume. When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.
I/O Timeout(sec.)	Number of seconds that should pass before I/O to the external volume times out.
Blocked Path Monitoring (sec.)	Time that will elapse from the time that a path goes down to the time when the external volume is blocked.

Delete External Volumes wizard

Use this wizard to delete external volume mapping.

See Deleting an external volume mapping for instructions.

The windows in the wizard are:

Delete External Volumes window
Delete External Volumes confirmation window

Delete External Volumes window

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Attribute	External volume's attribute.
Have you already disconnected the external volume of the above table?	Yes: Select if you have disconnected the external volume you want to delete. This is the default. No: Select if you have not disconnected the external volume you want to delete.
Do you want to execute the Delete External Volumes operation without writing the cache data to the volumes?	Yes: For deleting the external volumes without writing the data in cache memory into the volumes. No: If selected, the operation cannot be completed. This is the default.

Delete External Volumes confirmation window

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID.
Top LDEV Name	External volume's top LDEV name.
Attribute	External volume's attribute.
Forcible Deletion	Yes: The external volume will be forcibly deleted even if the connection to the external volume has not been disconnected. No: The external volume will be deleted after confirming that the connection to the external volume is disconnected.

Disconnect External Paths wizard

Use this wizard to disconnect external paths.

See Disconnecting an external path for instructions.

The windows in the wizard are:

Disconnect External Paths window
Disconnect External Paths confirmation window

Disconnect External Paths window

For Fibre Channel ports

Item	Description
Disconnect External Paths	By Ports (default): Stops use of all the external paths connected to the specified port in the local system. By External WWNs: Stops the use of all the external paths connected to the specified WWNs (ports) in the external system.

For iSCSI ports

Item	Description
Disconnect External Paths	By Ports (default): Stops the use of all the external paths connected to the specified port in the local system. By External Storage Ports: Stops use of all the external paths connected to the external system.

Disconnect External Paths confirmation window

For Fibre Channel ports

Item	Description
Port ID	Displays the external port of the local storage system.
External WWN	Displays the WWN of the external storage system. The external WWN shows the target port.
Vendor / Model / Serial Number	Identifying information for the external system.

For iSCSI ports

Item	Description
Port ID	Displays the external port of the local storage system.
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the target port information for the external storage system. IP Address: Displays the IP address of the target port. iSCSI Target Name: Displays the iSCSI target name of the target port.
Vendor / Model / Serial Number	Identifying information for the external system.

Reconnect External Paths wizard

Use this wizard to reconnect external paths.

See Reconnecting an external path for instructions.

The windows in the wizard are:

Reconnect External Paths window
Reconnect External Paths confirmation window

Reconnect External Paths window

For Fibre Channel ports

Item	Description
Reconnect External Paths	By Ports (default): Reconnects all external paths connected to the specified port in the local system. By External WWNs : Reconnects all external paths connected to the specified WWNs in the external system.

For iSCSI ports

Item	Description
Reconnect External Paths	By Ports (default): Reconnects all external paths connected to the specified port in the local system. By External Storage Ports: Reconnects all external paths connected to the specified ports in the external system.

Reconnect External Paths confirmation window

For Fibre Channel ports

Item	Description
Port ID	Displays the external port of the local storage system.
External WWN	Displays the WWN of the external storage system. The external WWN shows the target port.
Vendor / Model / Serial Number	Identifying information for the external system.

For iSCSI ports

Item	Description
Port ID	Displays the external port of the local storage system.
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the target port information for the external storage system. IP Address: Displays the IP address of the target port. iSCSI Target Name: Displays the iSCSI target name of the target port.
Vendor / Model / Serial Number	Identifying information for the external system.

Discover External Target Ports window

Use this window to add or remove external ports for the external path.

This window is used in the following operations:

Only external ports assigned to the user display.

Item	Description
Port ID (In the list of available and selected external paths)	Port number in the local system connecting to the external system.
Type (In the list of available and selected external paths)	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Add	When clicked, moves selected paths to the Selected External Ports list.
Remove	When clicked, removes the selected path from the Selected External Ports list.

Create External Path Group window

Use this window to create a new external path group.

This window is used in the operation, Mapping an external volume .

Only paths with ports assigned to the user can display.

Item	Description
Initial External Path Group ID	An initial ID for the path group. The storage system searches IDs in ascending order from this value and allocates an ID that can be used. Range of values: 0 to 63,231 The default is 0.
Discover External Target Ports	When clicked, opens the Discover External Target Ports window.
External Storage System	The external system selected (greyed out). If no system was selected, allows you to select the system from a list.

Available External Paths

Item	Description
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about external storage system's target port. IP Address: Displays the target port IP address when port type is iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when port type is Fibre Channel port. If the port type is iSCSI port, iSCSI target name is displayed.
Add	When clicked, moves selected paths to the Selected External Paths list.
Remove	When clicked, removes the selected path from the Selected External Paths list.

Selected External Paths

Item	Description
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about external storage system's target port. IP Address: Displays the target port IP address when port type is iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when port type is Fibre Channel port. If the port type is iSCSI port, iSCSI target name is displayed.
Raise Priority	When clicked, raises the priority of the selected external path.
Lower Priority	When clicked, lowers the priority of the selected external path.

Change Settings window

Use this window to change the settings for selected external volumes.

This window is used in the operation, Mapping an external volume .

Item	Description
Initial Parity Group ID	An external volume group number and sequence number. Values range from 1 - 1 to 16384 - 4096. The default is the value set on the selected external volume. When two or more volumes with different values are selected, these fields are blank.
MP Unit ID	You can select MPU-10 or MPU-20. Auto: You can select Auto when there are more than one MP units whose auto assignment function is enabled. The default is the value set on the selected external volume. If Auto cannot be selected, the unit with the lowest number is used. When two or more volumes with different values are selected, this field is blank.
LDEV Settings	If changes to LDEV settings are made, box must be checked to proceed.
LDEV ID	LDEV IDs allocated to the external volume.
LDEV Name	LDEV names.
Parity Group ID	Parity group numbers.
Capacity	LDEV capacity.
Resource Group Name (ID)	Name and ID of the resource group for the LDEV. ID is enclosed in parentheses.
Virtual Storage Machine	Model / Serial Number: Model and serial number of the virtual storage machine for the LDEV. Attribute: Virtual attribute of the LDEV. When the virtual attribute is not set, blank displays.
Change LDEV Settings	When clicked, opens the Change LDEV Settings window.

View External LUN Properties window

Use this window to view settings and other details about external LUNs.

Item	Description
Parity Group ID	Parity group numbers.
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about external storage system's target port. IP Address: Displays the target port IP address when port type is iSCSI port. TCP Port Number: Displays the target TCP port number when port type is iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when port type is Fibre Channel port. If the port type is iSCSI port, iSCSI target name is displayed.
LUN ID	When the external path is connected to the selected external volume, the LUN ID displays.
Status	Status of external paths. Unknown: The status of the mapping path is not known. Checking: The system is checking the mapping path status. Blockade: The mapping path is blocked. Normal: There are no problems, the system is usable. Disconnect: The external system or one of its mapped volumes has been intentionally disconnected. External Device Setting Changed: An external system setting has been changed. For example, the path definition was deleted, or the external system itself was replaced by another device. LDEV Size Reduced: The external volume's capacity was reduced. Not Ready: The reply from the external system was NOT READY. Illegal Request: The reply from the external system was ILLEGAL REQUEST. Command Aborted: The reply from the external system was ABORTED COMMAND. Busy: The external system is busy. LDEV Reserved: The external system is reserved. Response Error: The external system is blocked because of an abnormal reply. Initiator Port: The port attribute of the external system has been changed to the initiator port. Unknown Port: The port attribute of the external system is not known. Cannot Detect Port: The path has been removed or the external system port cannot be found. Timeout: Processing was retried because an abnormal reply was returned; however, processing has timed out. Passive: The external system port is not active. Port status is normal but the port is not used for I/O. Standby: The external system port is standing by. The port status is normal but cannot receive I/O. Target Error: Port failures, such as controller blockade, are detected on the external system. Unavailable: The reply from the external system was Unavailable. The external system demands to change the connected port. Once the status becomes Unavailable, the primary path is changed to an alternate path in Standby status. When the primary path is available, the status changes to Normal. Backoff: The reply from the external system was Backoff. A temporary error has occurred in the external volume and the path is waiting for recovery. The primary path is not changed to the alternate path immediately. After recovery, the status changes to Normal. Destage Failed: The writing of data from cache memory to the volume has failed.
Target Port Asymmetric Access State	When the path mode is ALUA, the port state of the external storage system displays. Active/Optimized: The performance is in a good state. Active/Non-Optimized: Data can be sent and received, but the performance is inferior to Active/Optimized. A space displays in one of the following cases: The path mode is other than ALUA. Mapping of an external volume is not completed.

Reconnect External Storage Systems window

Use this window to reconnect the external storage system.

For details, see Reconnecting external systems and volumes.

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID. Blank displays when an LDEV is not created.
Top LDEV Name	External volume's top LDEV name. Blank displays when an LDEV is not created.
Vendor / Model / Serial Number	Identifying information for the external system.
Attribute	External volume's attribute.

Reconnect External Volumes window

Use this window to reconnect the external volume.

See Reconnecting a single mapped volume for instructions.

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID. Blank displays when an LDEV is not created.
Top LDEV Name	External volume's top LDEV name. Blank displays when an LDEV is not created.
Vendor / Model / Serial Number	Identifying information for the external system.
Attribute	External volume's attribute.

Disconnect External Storage Systems window

Use this window to disconnect the storage system

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID. Blank displays when an LDEV is not created.
Top LDEV Name	External volume's top LDEV name. Blank displays when an LDEV is not created.
Vendor / Model / Serial Number	Identifying information for the external system.
Attribute	External volume's attribute.

Disconnect External Volumes window

Use this window to disconnect an external volume.

See Disconnecting a single mapped volume for instructions.

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID. Blank displays when an LDEV is not created.
Top LDEV Name	External volume's top LDEV name. Blank displays when an LDEV is not created.
Vendor / Model / Serial Number	Identifying information for the external system.
Attribute	External volume's attribute.

Assign MP Unit ID wizard

Use this wizard to select an MP unit for the external volume.

See Changing the MP unit of an external volume for instructions.

The windows in this wizard are:

Assign MP Unit window
Assign MP Unit confirmation window

Assign MP Unit window

Item	Description
MP Unit ID	MP unit for the external volume. You can select MPU-10 or MPU-20. The default is the value set on the selected external volume. When two or more volumes with different values are selected, blank displays.

Item

Description

MP Unit ID

MP unit for the external volume.

You can select MPU-10 or MPU-20.
The default is the value set on the selected external volume. When two or more volumes with different values are selected, blank displays.

Assign MP Unit confirmation window

Item	Description
Parity Group ID	Parity group numbers.
Top LDEV ID	External volume's top LDEV ID. Blank displays when an LDEV is not created.
Top LDEV Name	External volume's top LDEV name. Blank displays when an LDEV is not created.
MP unit ID	MP unit ID allocated to the external volume.

External LDEV Properties window

Use this window to view settings for external LDEVs.

LDEVs table

Item	Description
LDEV ID	LDEV IDs allocated to the external volume.
LDEV Name	LDEV names.
Parity Group ID	Parity group numbers.
Capacity	LDEV's capacity.
MP Unit ID	MP unit IDs allocated to the LDEV.
Attribute	LDEV's attribute.
Resource Group Name (ID)	Name and ID of the resource group for the LDEV. ID is enclosed in parentheses.
Virtual Storage Machine	Model / Serial Number: Model and serial number of the virtual storage machine for the LDEV. Attribute: Virtual attribute of the LDEV. When the virtual attribute is not set, blank displays.

Discovery Result Detail window

Use this window to view discover result settings and other details.

Item	Description
Priority	Priority of external paths.
Port ID	Displays the external port of the local storage system.
Type	Displays the port type. Fibre: Fibre Channel port iSCSI: iSCSI port
Virtual Port ID	Displays the virtual port of the local storage system.
External	Displays the information about external storage system's target port. IP Address: Displays the target port IP address when port type is iSCSI port. WWN / iSCSI Target Name: Displays the WWN to show the target port when port type is Fibre Channel port. If the port type is iSCSI port, iSCSI target name is displayed.
LUN ID	When the external path is connected to the selected external volume, the LUN ID displays.
Status	Status of external paths. Unknown: The status of the mapping path is not known. Normal: There are no problems, the system is usable.

Add iSCSI Paths wizard

Use this wizard to add an iSCSI path for external volumes.

The windows in this wizard are:

Add iSCSI Paths window
Add iSCSI Paths confirmation window

Add iSCSI Paths window

Item	Description
Discover iSCSI Targets button	Displays the Discover iSCSI Targets window, where you can edit information about iSCSI paths.
Available iSCSI Paths table: Local	Displays the local storage system port information. Port ID: Displays the external port. Virtual Port ID: Displays the virtual port.
Available iSCSI Paths table: Remote	Displays the remote storage system port information. IP Address: Displays the IP address. TCP Port Number: Displays the TCP port number. iSCSI Target Name: Displays the iSCSI target name.
Authentication Method	Select the authentication method (CHAP or None).
Mutual CHAP	Specify whether to enable mutual CHAP. Enable: Authentication is bidirectional. Disable: Authentication is unidirectional.
User Name	Specify a case-sensitive user name. You can use up to 223 characters. Valid characters: Alphanumeric characters and symbols (. - + @ _ = : / [ ] ~)
Secret	Set the secret for host authentication. You can use between 12 and 32 letters. Valid characters: Alphanumeric characters and symbols (. - + @ _ = : / [ ] ~)
Selected iSCSI Paths table: Local	Displays the local storage system port information. Port ID: Displays the external port. Virtual Port ID: Displays the virtual port.
Selected iSCSI Paths table: Remote	Displays the remote storage system port information. IP Address: Displays the IP address. TCP Port Number: Displays the TCP port number. iSCSI Target Name: Displays the iSCSI target name. Authentication Method: Displays the method for authentication. Mutual CHAP: Displays the mutual CHAP setting. CHAP User Name: Displays the CHAP user name, if specified.
Add button	Adds the iSCSI path selected in the Available iSCSI Paths table to the Selected iSCSI Paths table.
Remove button	Deletes the iSCSI path selected in the Selected iSCSI Paths table.

Add iSCSI Paths confirmation window

Item	Description
Local	Displays the local storage system port information. Port ID: Displays the external port. Virtual Port ID: Displays the virtual port.
Remote	Displays the remote storage system port information. IP Address: Displays the IP address. TCP Port Number: Displays the TCP port number. iSCSI Target Name: Displays the iSCSI target name. Authentication Method: Displays the method for authentication. Mutual CHAP: Displays the mutual CHAP setting. CHAP User Name: Displays the CHAP user name, if specified. Secret: If a secret is set, displays ****** (6 asterisks).

Item

Description

Local

Displays the local storage system port information.

Port ID: Displays the external port.
Virtual Port ID: Displays the virtual port.

Remote

Displays the remote storage system port information.

IP Address: Displays the IP address.
TCP Port Number: Displays the TCP port number.
iSCSI Target Name: Displays the iSCSI target name.
Authentication Method: Displays the method for authentication.
Mutual CHAP: Displays the mutual CHAP setting.
CHAP User Name: Displays the CHAP user name, if specified.
Secret: If a secret is set, displays ****** (6 asterisks).

Delete iSCSI Paths window

Item

Description

Local

Displays the local storage system port information.

Port ID: Displays the external port.
Virtual Port ID: Displays the virtual port.

Remote

Displays the external storage system port information.

IP Address: Displays the IP address.
iSCSI Target Name: Displays the iSCSI target name.

Edit iSCSI Targets wizard

Use this wizard to edit iSCSI targets for the external volume.

The windows in this wizard are:

Edit iSCSI Targets window
Edit iSCSI Targets confirmation window

Edit iSCSI Targets window

Item	Description
Authentication Method	Select the authentication method (CHAP or None).
Mutual CHAP	Specify whether to enable mutual CHAP. Enable: Authentication is bidirectional. Disable: Authentication is unidirectional.
User Name	Specify a case-sensitive user name. You can use up to 223 characters. Usable characters: Alphanumeric characters and symbols (. - + @ _ = : / [ ] ~)
Secret	Set the secret for host authentication. You can use from 12 to 32 characters. Usable characters: Alphanumeric characters and symbols (. - + @ _ = : / [ ] ~)

Edit iSCSI Targets confirmation window

Item

Description

Local

Displays the local storage system port information.

Port ID: Displays the external port.
Virtual Port ID: Displays the virtual port.

Remote

Displays the external storage system port information.

IP Address: Displays the IP address.
iSCSI Target Name: Displays the iSCSI target name.
Authentication Method: Displays the method for authentication.
Mutual CHAP: Displays the mutual CHAP setting.
CHAP User Name: Displays the CHAP user name, if specified.
Secret: Displays ****** (6 asterisks) if Secret is set.

Discover iSCSI Targets window

Item	Description
Local Port ID	Select the port connected to external storage system of the local storage system.
Local Virtual Port ID	Select the virtual port of the local storage system.
Remote IP Address	Enter the IP address of the external storage system port. IPv4: Select if the external storage system supports IPv4. Enter the address in the box. IPv6: Select if the external storage system supports IPv6. Enter the address in the box.
Remote TCP Port Number	Enter the TCP port number of external storage system port. You can enter from 1 to 65535.
Add button	Adds the entered targets to the Discovery List table. You can add up to 8 targets.
Local – Discovery List table	Displays the local storage system port information. Port ID: Displays the external port. Virtual Port ID: Displays the virtual port.
Remote – Discovery List table	Displays the external storage system port information. IP Address: Displays the IP address. TCP Port Number: Displays the TCP port number.
Remove button – Discovery List table	Deletes the target selected in the Discovery List table.

Quick Links

External Storage window

Selected external storage system window

Selected external path group window

Add External Volumes wizard

Select External Path Group window

Add External Volumes window

Add External Volumes confirmation window

Edit Policies window

Edit External Volumes wizard

Edit External Volumes window

Edit External Volumes confirmation window

Edit External Path Configuration wizard

Edit External Path Configuration window

Edit External Path Configuration confirmation window

Edit External WWNs wizard

Edit External WWNs window

Edit External WWNs confirmation window

Edit External iSCSI Targets wizard

Edit External iSCSI Targets window

Edit External iSCSI Targets confirmation window

Delete External Volumes wizard

Delete External Volumes window

Delete External Volumes confirmation window

Disconnect External Paths wizard

Disconnect External Paths window

Disconnect External Paths confirmation window

Reconnect External Paths wizard

Reconnect External Paths window

Reconnect External Paths confirmation window

Discover External Target Ports window

Create External Path Group window

Change Settings window

View External LUN Properties window

Reconnect External Storage Systems window

Reconnect External Volumes window

Disconnect External Storage Systems window

Disconnect External Volumes window

Assign MP Unit ID wizard

Assign MP Unit window

Assign MP Unit confirmation window

External LDEV Properties window

Discovery Result Detail window

Add iSCSI Paths wizard

Add iSCSI Paths window

Add iSCSI Paths confirmation window

Delete iSCSI Paths window

Edit iSCSI Targets wizard

Edit iSCSI Targets window

Edit iSCSI Targets confirmation window

Discover iSCSI Targets window