Configuring a Sun StorEdge T3 Disk Array

This section provides the procedures for configuring a Sun StorEdge T3 disk array in a running cluster. The following table lists these procedures.

Table B-1 Task Map: Configuring a Sun StorEdge T3 Disk Array

Task	For Instructions, Go To...
Create a Sun StorEdge T3 disk tray logical volume	"How to Create a Sun StorEdge T3 Disk Tray Logical Volume"
Remove a Sun StorEdge T3 disk tray logical volume	"How to Remove a Sun StorEdge T3 Disk Tray Logical Volume"

How to Create a Sun StorEdge T3 Disk Tray Logical Volume

Use this procedure to create a Sun StorEdge T3 disk tray logical volume. This procedure assumes all cluster nodes are booted and attached to the Sun StorEdge T3 disk array that will host the Sun StorEdge T3 disk tray logical volume you want to create.

1. Telnet to the Sun StorEdge T3 disk array that will host the Sun StorEdge T3 disk tray logical volume you want to create.

2. Create the Sun StorEdge T3 disk tray logical volume.

   Creating a Sun StorEdge T3 disk tray logical volume involves adding, mounting, and initializing a Sun StorEdge T3 disk tray logical volume.

   For the procedure on creating and initializing a Sun StorEdge T3 disk tray logical volume, see the Sun StorEdge T3 Disk Tray Administrator's Guide. For the procedure on mounting a Sun StorEdge T3 disk tray logical volume, see the Sun StorEdge T3 Installation, Operation, and Service Manual.

3. On all cluster nodes, update the /devices and /dev entries.

   # devfsadm

   After this process, a Solaris logical device name for the new Sun StorEdge T3 disk tray logical volume appears in the /dev/rdsk and /dev/dsk directories on all cluster nodes attached to the Sun StorEdge T3 disk array.

4. If you are running VERITAS Volume Manager, update VERITAS Volume Manager's device tables on all cluster nodes attached to the Sun StorEdge T3 disk tray logical volume you created in Step 2. Otherwise, proceed to Step 5.

5. If needed, partition the Sun StorEdge T3 disk tray logical volume.

6. From any node in the cluster, update the global device namespace.

   # scgdevs

   If a volume management daemon such as vold is running on your node, and you have a CD-ROM drive connected to the node, a device busy error might be returned even if no disk is in the drive. This error is expected behavior.

Where to Go From Here

To create a new resource or reconfigure a running resource to use the new Sun StorEdge T3 disk tray logical volume, see the Sun Cluster 3.0 Data Services Installation and Configuration Guide.

To configure a Sun StorEdge T3 disk tray logical volume as a quorum device, see the Sun Cluster 3.0 System Administration Guide for the procedure on adding a quorum device.

How to Remove a Sun StorEdge T3 Disk Tray Logical Volume

Use this procedure to remove a Sun StorEdge T3 disk tray logical volume. This procedure assumes all cluster nodes are booted and attached to the Sun StorEdge T3 disk array that hosts the Sun StorEdge T3 disk tray logical volume you want to remove.

This procedure defines Node A as the node you want to begin working with, and Node B as the remaining node.

---

Caution -

This procedure removes all data on the Sun StorEdge T3 disk tray logical volume you want to remove.

---

1. If necessary, migrate all data and volumes off the Sun StorEdge T3 disk tray logical volume you want to remove. Otherwise, proceed to Step 2.

2. Is the Sun StorEdge T3 disk tray logical volume you want to remove a quorum device?

   # scstat -q

   • If yes, remove the quorum device before you proceed.

   • If no, proceed to Step 3.

   For the procedure on removing a quorum device, see the Sun Cluster 3.0 System Administration Guide.

3. If you are running VERITAS Volume Manager, update VERITAS Volume Manager's device tables on all cluster nodes attached to the Sun StorEdge T3 disk tray logical volume you want to remove. Otherwise, proceed to Step 4.

4. Run the appropriate Solstice DiskSuite or VERITAS Volume Manager commands to remove the reference to the logical unit number (LUN) from any diskset or disk group.

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

5. Remove the Sun StorEdge T3 disk tray logical volume.

   For the procedure on deleting a Sun StorEdge T3 disk tray logical volume, see the Sun StorEdge T3 Disk Tray Administrator's Guide.

6. Determine the resource groups and device groups running on Node A and Node B.

   Record this information because you will use it in Step 15 of this procedure to return resource groups and device groups to these nodes.

   # scstat

7. Move all resource groups and device groups off Node A.

   # scswitch -S -h nodename

8. Shut down Node A.

   # shutdown -y -g0 -i0

9. Boot Node A into cluster mode.

   {0} ok boot

   For more information, see the Sun Cluster 3.0 System Administration Guide.

10. On Node A, remove the obsolete device IDs (DIDs).

    # devfsadm -C # scdidadm -C

11. Move all resource groups and device groups off Node B.

    # scswitch -S -h nodename

12. Shut down Node B.

    # shutdown -y -g0 -i0

13. Boot Node B into cluster mode.

    {0} ok boot

    For more information, see the Sun Cluster 3.0 System Administration Guide.

14. On Node B, remove the obsolete DIDs.

    # devfsadm -C # scdidadm -C

15. Return the resource groups and device groups you identified in Step 6 to Node A and Node B.

    # scswitch -z -g resource-group -h nodename # scswitch -z -D device-group-name -h nodename

    For more information, see the Sun Cluster 3.0 System Administration Guide.

Where to Go From Here

To create a Sun StorEdge T3 disk tray logical volume, see "How to Create a Sun StorEdge T3 Disk Tray Logical Volume".