How to Replace a Disk Tray Chassis in a Running Cluster

Use this procedure to replace a StorEdge T3/T3+ disk tray chassis in a running cluster. This procedure assumes that you want to retain all FRUs other than the chassis and the backplane. To replace the chassis, you must replace both the chassis and the backplane because these components are manufactured as one part.

Only trained, qualified Sun service providers should use this procedure to replace a StorEdge T3/T3+ disk tray chassis. This procedure requires the Sun StorEdge T3 and T3+ Array Field Service Manual, which is available to trained Sun service providers only.

1. Detach the submirrors on the disk tray that is connected to the chassis you are replacing to stop all I/O activity to this disk tray.

   For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.

2. Are the disk trays in your partner-pair configuration made redundant by host-based mirroring?

   • If yes, go to Step 3.

   • If not, shutdown the cluster.

     # scshutdown -y -g0

3. Replace the chassis/backplane.

   For the procedure on replacing a StorEdge T3/T3+ chassis, see the Sun StorEdge T3 and T3+ Array Field Service Manual. (This manual is available to trained Sun service providers only.)

4. Did you shut down the cluster in Step 2?

   • If not, go to Step 5.

   • If you did shut down the cluster, boot it back into cluster mode.

     {0} ok boot

5. Reattach the submirrors you detached in Step 1 to resynchronize them.

   For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.

6. On all nodes attached to the disk tray, use the following command to make the nodes' volumes recognize the new WWNs.

   # drvconfig; disks; devlinks

7. On one node, use the format command to verify that the new logical volume is visible to the system.

   # format

   See the format command man page for more information about using the command.