Sun Microsystems, Inc.
spacerspacer
spacer www.sun.com docs.sun.com |
spacer
black dot
 
 
1.  Installing and Maintaining a Sun StorEdge D1000 or Netra st D1000 Disk Array Maintaining Storage Arrays How to Add a Storage Array  Previous   Contents   Next 
   
 

ProcedureHow to Replace a Storage Array

Use this procedure to replace a storage array in a running cluster. This procedure assumes that you are retaining the disk drives in the storage array you are replacing. This procedure also assumes that you are retaining the references to these disk drives.

If you are replacing your disk drives, see How to Replace a Disk Drive.

  1. If possible, back up the metadevices or volumes that reside in the storage array.

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

  2. Perform volume management administration to remove the storage array from the configuration.

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

  3. Disconnect the SCSI cables from the storage array. Remove the SCSI cables in the order that is shown in Figure 1-4.

    Figure 1-4 Disconnecting the SCSI Cables

    Illustration: Disconnect the storage array by removing the cable to Node 1, and then remove the cable to Node 2.

  4. Power off and disconnect the storage array from the AC power source.

    For the procedure about how to power off a storage array, see the Sun StorEdge A1000 and D1000 Installation, Operations, and Service Manual or the Netra st A1000/D1000 Installation and Maintenance Manual.

  5. Connect the new storage array to an AC power source.

  6. Connect the SCSI cables to the new storage array. Reverse the order in which the cables were disconnected as shown in Figure 1-4.

  7. One disk drive at a time, remove the disk drives from the old storage array. Insert the disk drives into the same slots in the new storage array.

  8. Power on the storage array.

    For the procedure about how to power on a storage array, see the Sun StorEdge A1000 and D1000 Installation, Operations, and Service Manual or the Netra st A1000/D1000 Installation and Maintenance Manual.

  9. On all nodes that are attached to the storage array, run the devfsadm(1M) command.

    # devfsadm

  10. One at a time, shut down and reboot the nodes that are connected to the storage array.

    For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

  11. Perform volume management administration to add the storage array to the configuration.

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

ProcedureHow to Remove a Storage Array

Use this procedure to remove a storage array from a running cluster. This procedure assumes that you are removing the references to the disk drives in the storage array.

  1. Perform volume management administration to remove the storage array from the configuration.

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

  2. Disconnect the SCSI cables from the storage array. Remove the SCSI cables in the order that is shown in Figure 1-5.

    Figure 1-5 Disconnecting the SCSI Cables

    Illustration: Disconnect the storage array by removing the cable to Node 1, and then remove the cable to Node 2.

  3. Power off and disconnect the storage array from the AC power source.

    For the procedure about how to power off a storage array, see the Sun StorEdge A1000 and D1000 Installation, Operations, and Service Manual or the Netra st A1000/D1000 Installation and Maintenance Manual.

  4. Remove the storage array.

    For the procedure about how to remove a storage array, see the Sun StorEdge A1000 and D1000 Installation, Operations, and Service Manual or the Netra st A1000/D1000 Installation and Maintenance Manual.

  5. Identify the disk drives that you are removing.

    # cfgadm -al

  6. On all nodes, remove references to the disk drives in the storage array you removed in Step 4.

    # cfgadm -c unconfigure cN::dsk/cNtXdY
# devfsadm -C
# scdidadm -C

  7. If you plan to remove a host adapter that has an entry in the nvramrc script, delete the references to the host adapters in the nvramrc script.

    Note - If there are no other parallel SCSI devices connected to the nodes, you can delete the contents of the nvramrc script and, at the OpenBoot PROM, set setenv use-nvramrc? false.

  8. If necessary, remove any unused host adapters from the nodes.

    For the procedure on how to remove a host adapter, see the documentation that shipped with your host adapter and node.

ProcedureHow to Replace a SCSI Cable

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

  1. Is one of the disks in the storage array a quorum device? This array is the array that is attached to the cable you are replacing.

    # scstat -q

    • If no, skip to Step 3

    • If yes, relocate that quorum device to another suitable storage array

      For procedures on how to add and remove quorum devices, see your Sun Cluster system administration documentation.

  2. Detach the submirror(s) on the storage array.

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

  3. Replace the SCSI cable.

  4. Reattach the submirror(s) on the storage array.

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

  5. (Optional) Did you relocate the quorum device in Step 1?

    • If no, this step completes the procedure

    • If yes, relocate the quorum device function back to this storage array

      For procedures on how to add and remove quorum devices, see your Sun Cluster system administration documentation.

 		 
 
  Previous   Contents   Next