It is sometimes necessary to replace the host bus adapter
(HBA) that connects the host to the SAN. You must notify the SAN Volume Controller cluster
of the new worldwide port name (WWPN) that this HBA contains.
Before you begin this task, you must ensure that the switch
is zoned correctly.
This task assumes that you have already
launched the SAN Volume Controller Console.
Perform the following steps to notify the SAN Volume Controller cluster
of a change to a defined host object:
- Locate the host object that corresponds with the host in
which you have replaced the HBA.
- Click in the portfolio. The Viewing
Hosts panel is displayed.
- Select the host object and then select Add Ports from
the task list. Click Go. The Adding ports panel
is displayed.
- Select the candidate WWPNs from the Available
Ports list and click Add. Click OK.
The Viewing Hosts panel is displayed.
- Select the host object and select Delete Ports from
the task list. Click Go. The Deleting Ports
panel is displayed.
- Select the WWPNs that you want to remove (the ones that
correspond with the old HBA that was replaced) and click Add.
Click OK.
Any mappings that exist between the host object and VDisks
are automatically applied to the new WWPNs. Therefore, the host sees
the VDisks as the same SCSI LUNs as before. See the IBM® System Storage® Multipath
Subsystem Device Driver User's
Guide or
your multipathing device driver user's guide for adding device identifiers
(virtual paths if you are using SDD) to existing device identifiers.