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Finding the WWN of a host bus adapter

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Finding a WWN on a Windows host

Emulex Fibre Channel adapters are supported in a Windows environment. For further information about Fibre Channel adapter support, or when using a Fibre Channel adapter other than Emulex, contact customer support for instructions on finding the WWN.

Before attempting to acquire the WWN of an Emulex adapter, confirm whether the driver installed in the Windows 2000 or Windows Server 2003 environment is an Emulex port driver or an Emulex mini-port driver, and then follow the driver instructions.

Procedure

  1. Verify that the Fibre Channel adapters and device drivers are installed.

  2. Log on to the Windows host with administrator access.

  3. Go to the LightPulse Utility to open the LightPulse Utility window. If you do not have a shortcut to the utility:

    1. Go to the Start menu, select Find and choose the Files and Folders option.

    2. On the Find dialog box, in Named type lputilnt.exe, and from the Look in list, choose the data drive that contains the Emulex mini-port driver.

    3. Choose Find Now to search for the LightPulse utility.

      If you still cannot find the LightPulse utility, contact Emulex technical support.

    4. Select lputilnt.exe from the Find: Files named list, and then press Enter.

  4. On the LightPulse Utility window, verify that any installed adapters appear in the tree.

  5. In the Category list, choose the Configuration Data option.

  6. In the Region list, choose the 16 World-Wide Name option. The WWN of the selected adapter appears in the list on the right of the window.

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Finding a WWN on a Solaris host

JNI Fibre Channel adapters are supported in a Solaris environment. For further information about Fibre Channel adapter support, or if using a Fibre Channel adapter other than JNI, contact customer support for instructions for finding the WWN.

Procedure

  1. Verify that the Fibre Channel adapters and device drivers are installed.

  2. Log on to the Solaris host with root access.

  3. Use the dmesg |grep Fibre command to list the installed Fibre Channel devices and their WWNs.

  4. Verify that the Fibre Channel adapters listed are correct, and record the listed WWNs.

    Example: 
    # dmesg |grep Fibre          <- Enter the dmesg command.
 : 
fcaw1: JNI Fibre Channel Adapter model FCW 
fcaw1: Fibre Channel WWN: 200000e0694011a4      <- Record the WWN. 
fcaw2: JNI Fibre Channel Adapter model FCW 
fcaw2: Fibre Channel WWN: 200000e06940121e     <- Record the WWN.
#
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Finding a WWN on an AIX, IRIX, or Sequent host

To find the WWN in an IBM AIX, SGI Irix, or Sequent environment, use the fabric switch that is connected to the host. The method of finding the WWN of the connected server on each port using the fabric switch depends on the type of switch. For instructions on finding the WWN, see the manual of the corresponding switch.

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Finding a WWN on an HP-UX host
You can find the WWN in an HP-UX environment.

Procedure

  1. Verify that the Fibre Channel adapters and the Fibre Channel device drivers are installed.

  2. Log in to the HP-UX host with root access.

  3. At the command line prompt, type:

    /usr/sbin/ioscan -fnC lan This will list the attached Fibre Channel devices and their device file names. Record the Fibre Channel device file name (for example, /dev/fcms0).
    NoteWhen the A5158 Fibre Channel adapter is used, at the command line prompt, enter /usr/sbin/ioscan -fnC fc for the device name.

  4. Use the fcmsutil command along with the Fibre Channel device name to list the WWN for that Fibre Channel device. For example, to list the WWN for the device with the device file name /dev/fcms0, type:

    /opt/fcms/bin/fcmsutil /dev/fcms0 Record the Fibre Channel device file name (for example, /dev/td0).
    NoteWhen using the A5158 Fibre Channel adapter, list the WWN for the device with the device file name as follows:

    /opt/fcms/bin/fcmsutil <device file name>

  5. Record the WWN and repeat the above steps for each Fibre Channel device that you want to use.

Results

# /usr/sbin/ioscan -fnC lan  <- 1
Class     I  H/W Path  Driver      S/W State   H/W Type
Description
==============================================================
lan        0  8/0.5     fcT1_cntl   CLAIMED    INTERFACE    HP
Fibre Channel Mass Storage Cntl
                          /dev/fcms0  <-2 
lan        4  8/4.5     fcT1_cntl   CLAIMED    INTERFACE    HP
Fibre Channel Mass Storage Cntl
                          /dev/fcms4  <-2
lan        5  8/8.5     fcT1_cntl   CLAIMED    INTERFACE    HP
Fibre Channel Mass Storage Cntl
                          /dev/fcms5  <-2
lan        6  8/12.5    fcT1_cntl   CLAIMED    INTERFACE    HP
Fibre Channel Mass Storage Cntl
                          /dev/fcms6  <-2
lan        1  10/8/1/0  btlan4      CLAIMED    INTERFACE
PCI(10110009) -- Built-in #1
lan        2  10/8/2/0  btlan4      CLAIMED    INTERFACE
PCI(10110009) -- Built-in #2
lan        3  10/12/6   lan2        CLAIMED    INTERFACE
Built-in LAN
                          /dev/diag/lan3  /dev/ether3     /dev
/lan3
#
# fcmsutil /dev/fcms0 <-3
                Local N_Port_ID is = 0x000001
       N_Port Node World Wide Name = 0x10000060B0C08294
          N_Port Port World Wide Name = 0x10000060B0C08294 <- 4
                          Topology = IN_LOOP
                             Speed = 1062500000 (bps)
                       HPA of card = 0xFFB40000
                       EIM of card = 0xFFFA000D
                      Driver state = READY
            Number of EDB's in use = 0
            Number of OIB's in use = 0
Number of Active Outbound Exchanges = 1
   Number of Active Login Sessions = 2
#
1: Enter the ioscan.
2: Device name
3: Enter the fcmsutil command.
4: Record the WWN.
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