VLS9200 user guide (BW402-10009, August 2012)

4. Record the backend Fibre Channel WWPN from the console and configure them for the
automigration tape libraries.
The Fibre Channel host port WWPNs on the spare primary node will be set to the same as
the original primary node when the VLS configuration is restored.
The Fibre Channel storage port WWPNs are not set to the same as the original primary node
when the VLS configuration is restored, so the Fibre Channel storage port WWPNs must be
added to the EVA storage presentation and any configured automigration tape library storage
presentations.
5. Enter m.
The node will then run cable checks and configuration checks. After the checks are complete
the node will reboot automatically. Wait for the node to fully boot.
The new primary node will reboot once more after it has retrieved the old configuration from
the backend storage. Wait until the new primary node boots up with the correct hostname
and configuration.
6. Log into Command View VLS and check:
• VLS identity
• Chassis general information
• General information for the primary node such as name, serial number, memory, Ethernet,
etc.
• Fibre Channel configuration for the primary node (host ports and storage ports)
• Virtual library configuration
• Storage pool general information
• EVA storage LUNs
Recovering from a Primary Node Failure using a Cold Spare Primary Node 215