Upgrading Firmware on Arrays That Support Submirrored Data

Perform this procedure on one array at a time. This procedure requires that you reset the arrays you are upgrading. If you reset more than one array at a time, your cluster will lose access to data.

1. On the node that currently owns the disk group or disk set to which the submirror belongs, detach the submirrors of the array on which you are upgrading firmware. (This procedure refers to this node as Node A and remaining node as Node B.)

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

2. Disconnect both array-to-switch fiber optic cables from the two arrays of the partner-group.

3. Apply the controller, disk drive, and UIC firmware patches.

   For the list of required StorEdge T3+ array patches, see the Sun StorEdge T3 Disk Tray Release Notes. For the procedure on applying firmware patches, see the firmware patch README file. For the procedure on verifying the firmware level, see the Sun StorEdge T3 and T3+ Array Installation, Operation, and Service Manual.

4. Reset the arrays.

   For the procedure on resetting an array, see the Sun StorEdge T3 and T3+ Array Installation, Operation, and Service Manual.

5. Use the StorEdge T3+ disable command to disable the array controller that is attached to Node B so that all logical volumes come under the control of the remaining controller.

   t3:/:<#> disable uencidctr

   See the Sun StorEdge T3 and T3+ Array Administrator's Guide for more information about the disable command.

6. Reconnect both array-to-switch fiber optic cables to the two arrays of the partner-group.

7. On one node connected to the partner-group, use the format command to verify that the array controllers are rediscovered by the node.

   # format

8. Use the StorEdge T3+ enable command to enable the array controller that you disabled in Step 5.

   t3:/:<#> enable uencidctr

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

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