Forcing Control Path Failover

You can manually switch the active tape drive on a Control Path Failover-enabled partition by forcing a failover. You might want to force a failover to check that the non-active tape drive still works, or to switch back to the original control path tape drive once the issue that originally caused the failover has been fixed.

To force a failover:

1. From the Tools menu, click Drive Operations.
   
   The Tools - Drive Operations screen displays.
2. Select Force Control Path Failover and click Next.
   
   The Force Control Path Failover page displays. All of the partitions that have control path failover enabled are listed. For each partition the following information is listed:
   • Active Drive — Location of the current control path tape drive.
   • Active Status — Ready status of the current control path tape drive.
   • Active Connected — Whether the current control path tape drive is connected and has a working link.
   • Standby Drive — Location of the standby tape drive.
   • Standby Status — Ready status of the standby tape drive.
   • Standby Connected — Whether the standby tape drive is connected and has a working link.
3. Select the partition on which you want to force the failover. The standby tape drive must be “ready” and "connected" in order to force a failover.
4. Click Apply.
   
   The new active tape drive location displays in the Active Drive column. The new standby tape drive location displays in the Standby Drive column.
   
   

   NOTE: If the new active tape drive locations do not display, refresh the page in the browser.

See also:

• About Control Paths
• About Control Path Failover
• About Storage Networking