How to Remove a StorEdge A3500/A3500FC System From a Running Cluster

Use this procedure to remove a StorEdge A3500/A3500FC system from a running cluster.

This procedure removes all data that is on the StorEdge A3500/A3500FC system you remove.

1. Migrate any Oracle Parallel Server (OPS) tables, data services, or volumes off the StorEdge A3500/A3500FC system.

2. Halt all activity to the StorEdge A3500/A3500FC controller module.

   See the Sun StorEdge RAID Manager User's Guide and your operating system documentation for instructions.

3. Does a volume manager manage any of the LUNs on the StorEdge A3500/A3500FC controller module you are removing?

   • If not, go to Step 4.

   • If a volume manager does manage the LUN, run the appropriate Solstice DiskSuite or VERITAS Volume Manager commands to remove the LUN from any diskset or disk group. For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation. See the following paragraph for additional VERITAS Volume Manager commands that are required.

     LUNs that were managed by VERITAS Volume Manager must be completely removed from VERITAS Volume Manager control before you can delete them. To remove the LUNs, after you delete the LUN from any disk group, use the following commands:

     # vxdisk offline cNtXdY # vxdisk rm cNtXdY

4. Disconnect all cables from the StorEdge A3500/A3500FC system and remove the hardware from your cluster.

5. From one node, delete the LUN.

   For the procedure on deleting a LUN, see the Sun StorEdge RAID Manager User's Guide.

6. Remove the paths to the LUN(s) you are deleting:

   # rm /dev/rdsk/cNtXdY* # rm /dev/dsk/cNtXdY* # rm /dev/osa/dev/dsk/cNtXdY* # rm /dev/osa/dev/rdsk/cNtXdY*

7. Use the lad command to determine the alternate paths to the LUN(s) you are deleting.

   The RAID Manager software creates two paths to the LUN in the /dev/osa/dev/rdsk directory. Substitute the cNtXdY number from the other controller module in the disk array to determine the alternate path.

   For example, with this configuration:

   # lad c0t5d0 1T93600714 LUNS: 0 1 c1t4d0 1T93500595 LUNS: 2

   The alternate paths would be the following.

   /dev/osa/dev/dsk/c1t4d1* /dev/osa/dev/rdsk/c1t4d1*

8. Remove the alternate paths to the LUN(s) you are deleting:

   # rm /dev/osa/dev/dsk/cNtXdY* # rm /dev/osa/dev/rdsk/cNtXdY*

9. On all cluster nodes, remove references to the StorEdge A3500/A3500FC system:

   # scdidadm -C

10. Are you are removing the last StorEdge A3500FC controller module from a hub in your cluster?

    • If not, go to Step 11.

    • If you are removing the last StorEdge A3500FC controller module from a particular hub, remove the hub hardware and cables from your cluster.

11. Remove any unused host adapter from nodes that were attached to the StorEdge A3500/A3500FC system:

    1. Shut down and power off the first node from which you are removing a host adapter:

       # scswitch -S -h nodename # shutdown -y -g0 -i0

       For the procedure on shutting down and powering off a node, see the Sun Cluster 3.0 U1 System Administration Guide.

    2. Remove the host adapter from the first node.

       See the documentation that came with your node hardware for removal instructions.

    3. Boot the node and wait for it to rejoin the cluster.

       # boot -r

    4. Repeat Step a through Step c for the second node that was attached to the StorEdge A3500/A3500FC system.

12. Switch the cluster back online.

    # scswitch -Z

13. Are you removing the last StorEdge A3500/A3500FC system from your cluster?

    • If not, you are finished with this procedure.

    • If you are removing the last StorEdge A3500/A3500FC system from your cluster, remove StorEdge A3500/A3500FC software packages. For the procedure on removing software packages, see the documentation that shipped with your StorEdge A3500/A3500FC system.