Confirming fibre-channel storage connectivity for OpenVMS

Complete this task to confirm the fibre-channel storage connectivity for the OpenVMS host system.

1. Reset the host (nonclustered configurations) or each cluster member (clustered configurations).
2. Bring each host system to a halt condition at the console level.
3. If required by the host, type set mode diag at the Hewlett-Packard AlphaServer console to place the console in diagnostic mode.

   Type wwidmgr -show wwid to display the information about the storage unit volume at the console level. You can use this information to identify the volumes that are attached to an AlphaServer. Figure 1 shows an example of information about the storage unit volumes that you can see at the AlphaServer console.

   Figure 1. Example of storage unit volumes on the AlphaServer console

   P00>>>set mode diag
   Console is in diagnostic mode
   P00>>>wwidmgr -show wwid
   [0] UDID:20 WWID:01000010:6005-0763-03ff-c0a4-0000-0000-0000-000f (ev:none)
   [1] UDID:21 WWID:01000010:6005-0763-03ff-c0a4-0000-0000-0000-0001 (ev:none)
   P00>>>

   There are four columns of information on a WWID line display that are used to identify disks:

   • The first column is the item number in brackets. The item number is used to reference the WWID on that line in other wwidmgr commands.
   • The second column of the WWID line display shows the UDID. All OpenVMS volumes must have a valid UDID. If the UDID for a volume appears as -1, then the UDID is undefined or invalid, and this volume can not be accessed by the OpenVMS operating system.
   • The third column of the WWID line display is the worldwide id of the volume. This id is composed from the World Wide Node Name of the storage unit and from the volume number. The presentation with the prefix “WWID:01000010:” is consistent with the UNIX presentation.
   • The underscore in Figure 2 highlights the World Wide Node Name that identifies the storage unit volume that is attached to an AlphaServer.
     Figure 2. Example of a World Wide Node Name for the storage unit volume on an AlphaServer console

     01000010:6005-0763-03ff-c0a4-0000-0000-0000-0001

     The underscore in Figure 3 highlights the hex string that identifies the volume number of the storage unit volume.

     Figure 3. Example of a volume number for the storage unit volume on an AlphaServer console

     01000010:6005-0763-03ff-c0a4-0000-0000-0000-0001

   • The fourth column of the WWID line display shows the console environment variable in parentheses which is used to reference the WWID on that line in console non-volatile memory.