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Switching to server management that uses Storage Advisor Embedded from another management tool

To switch server management from another tool (such as Ops Center Administrator, Command Control Interface or Storage Navigator), to using Storage Advisor Embedded, complete the steps listed in the following sections.

Settings for attaching storage system volumes to a server

To switch to server management using Storage Advisor Embedded, you must first create a server# so that you can attach storage system volumes to that server. If you created host groups (or iSCSI targets) by using Command Control Interface or Device Manager - Storage Navigator, use the Command Control Interface command to apply the host groups (or iSCSI targets) to the server.

# Server: Unit by which business servers that use storage systems are managed in Storage Advisor Embedded. In a cluster configuration, all servers (nodes) that make up the cluster are collectively managed as one server.

Caution

You cannot create FC-NVMe configurations by using Hitachi Storage Advisor Embedded. Instead, use RAID Manager.

Requirements for managing host groups (or iSCSI targets) from a server

The requirements for managing host groups (or iSCSI targets) from a server are as follows.

No.

Description

Requirement 1

You can register, in one server, either host groups or iSCSI targets. To manage a host with both Fibre Channel HBAs and iSCSI HBAs as a server, create one server for the Fibre Channel HBAs and another server for the iSCSI HBAs. (For details, see requirement 1 in the figure that follows.)

Requirement 2

You cannot register, in multiple servers, the same host group (or iSCSI target). In a cluster configuration, group all the servers (nodes) composing the cluster, and manage them as one server. Manage each host group (or iSCSI target) by registering it to a single server. (For details, see requirement 2 in the figure that follows.)

Requirement 3

You cannot register, in the same server, host groups (or iSCSI targets) corresponding to the same port. If a port has multiple host groups (or iSCSI targets), create a server for each host group (or iSCSI target). (For details, see requirement 3 in the figure that follows.)

Requirement 4

You can register, in a server, a maximum of 32 host WWNs or iSCSI names. To manage a host that has more than 32 HBAs as a server, create multiple servers for that host.

Requirement 5

You cannot register, in a server, a host group that has a path to a volume that is not a Dynamic Provision, Dynamic Tiering, or Active Flash LDEV. (For details, see requirement 5 in the figure that follows.)

Requirement 6

If you register, in a server, a host group (or an iSCSI target), change the LU security setting to ON.

Requirement 7

You cannot register, in a server, a host group (or an iSCSI target) with an ID of 0. Use a host group (or iSCSI target) with an ID other than 0.

Requirement 8

You cannot register, in a server, a host group (or iSCSI target) that is associated with a virtual storage machine.

Requirement 9

You cannot register, in a server, the host group of a port whose action mode is NVMe.

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Using a server to manage host groups (or iSCSI targets)

  • If you are using servers to manage host groups (or iSCSI targets) and you want to register multiple host groups (or iSCSI targets) to the same server, we recommend that you set the same host mode and host mode option for each host group (or iSCSI target). You can use the raidcom get host_grp -key server command to check which host groups (or iSCSI targets) are registered to a server.

  • If you register host groups (or iSCSI targets) on a server created by using the raidcom add server command, the host mode and host mode option of the first host group (or iSCSI target) you register is applied to the OS type and OS type mode of the server. If the host mode and host mode option of the next host group (or iSCSI target) differs from the host mode and host mode option of the first host group (or iSCSI target) that you registered, there is a discrepancy between the OS type and OS type option of the server and the host mode and host mode option of the second host group (or iSCSI target). As a result, it is more difficult to manage the host groups (or iSCSI targets).

  • If there is a discrepancy between the server OS type and OS type option and the host mode and host mode option of a host group (or an iSCSI target), the following occurs:
    • If you add connection information in Storage Advisor Embedded, the host group (or iSCSI target) with a host mode and host mode option that match the server OS type and OS type option are automatically created for the specified port.

    • If you change the OS type or OS type mode that is set in Storage Advisor Embedded, the change is applied to all host groups (or iSCSI targets) that are registered to the server. For this reason, you cannot set different host modes or host mode options for each host group (or iSCSI target).

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