ExpressCluster X 2.0 for Windows Reference Guide - Nec

Section III Maintenance information
Replacing the mirror disk
16. Format the partition used for the disk resource from the server on which the disk resource is
running. In case the group with the disk resource is stopped, format the partition after
starting the disk resource as necessary.
17. When there is a partition of the hybrid disk resource on the replaced shared disk, rebuilding
of mirroring (full copy) is automatically performed if the Auto mirror recovery is
configured in the Mirror disk tab of Cluster Properties. If the settings are configured not
to perform Auto mirror recovery, reconfigure mirror manually.
Replacing the mirror disk
If an error occurs in a disk that forms a mirror set, follow the steps below to replace the disk.
When disks are arrayed, these disks also need to be changed if the array is built again.
You can replace a local disk mirrored by a hybrid disk resource by following the steps below. In
that case, consider “mirror disk resource” in the description below as “hybrid disk resource”.
1. Make sure that the cluster is working properly. (However, ignore errors in the disk to be
replaced.)
2. If the group is running on the server, which contains the disk to be replaced, move the group.
3. When the Auto Mirror Recovery checkbox is not selected in Properties of the cluster, start
the Builder on line, select Properties of the cluster and the Mirror disk tab, clear the Auto
Mirror Recovery checkbox, select Upload the Configuration File in the File menu to
reflect the cluster configuration data to the cluster.
4. Shutdown the server whose disk is to be replaced from the WebManager and power it off.
5. Replace the disk and start the server.
6. Configure the settings for the disk by the server with the replaced disk.
- Reserve the data partition and the cluster partition for the mirror disk by using Disk
Management (On the Start menu, point to Settings, and click Control Panel.
Double-click Administrative Tools and then Computer Management, and click Disk
Management.) Set the drive letters of the data partition and the cluster partition so that
the drive letters of data partition and cluster partition and the size of data partitions are the
same in both servers.
7. When the Auto Mirror Recovery is configured as Off in the Auto Recovery tab in Cluster
properties, return the replaced server to the cluster from the WebManager.
8. Stop group with mirror disk resource by using WebManager and suspend the cluster.
9. Start the Builder on line and select Upload the Configuration File from the File menu of
the Builder, and reflect the cluster configuration data to the cluster.
10. Resume the cluster by using the WebManager.and start the group which has been stopped in
step 8 with the server which has not been replaced disks.
11. If Auto Mirror Construction is set to be performed in cluster properties, full reconstruction
of mirror will be performed. If Auto Mirror Construction is set not to be performed, perform
the reconstruction manually.
12. Move the group as necessary.
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