How to Replace a SCSI Cable

Use this procedure to replace a failed SCSI cable in a running cluster.

Before You Begin

This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands, in Sun Cluster 3.1 - 3.2 Hardware Administration Manual for Solaris OS.

1. Become superuser or assume a role that provides solaris.cluster.read and solaris.cluster.modify RBAC authorization.

2. If one of the disks in the storage array that you are replaces is configured as a quorum device, configure a new quorum device that will not be affected by this procedure. Then remove the old quorum device.

   To determine whether a quorum device will be affected by this procedure, use one of the following commands.

   • If you are using Sun Cluster 3.2, use the following command:

     # clquorum show

   • If you are using Sun Cluster 3.1, use the following command:

     # scstat -q

   To add and remove quorum devices, see the Sun Cluster system administration documentation.

3. Detach the submirror or submirrors on the storage array.

   For more information, see your Solaris Volume Manager or Veritas Volume Manager documentation.

4. Replace the SCSI cable.

5. Reattach the submirror or submirrors on the storage array.

   For more information, see your Solaris Volume Manager or Veritas Volume Manager documentation.

6. If you relocated a quorum device in Step 1, relocate the quorum device function to this storage array.

   To add and remove quorum devices, see the Sun Cluster system administration documentation.