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This mirrors the existing pool and creates the RAID 1 device where each segment is the size of
the pool.
5 Use one of the following methods to initiate mirroring for the newly created mirror:
At the terminal console of a cluster node, enter the following to migrate the cluster
resource to another node:
cluster migrate cluster_resource destination_node_name
Migrating the pool causes load scripts to be executed and causes the mirroring to start on
the new node.
At the terminal console of the cluster node where the pool is currently active, enter
dmsetup message raid_device_name 0 remirror=on
WARNING: Issue this command only on the node where the pool is currently active.
Issuing the command on multiple nodes can corrupt the mirror.
6 Verify that the remirroring has begun by opening NSSMU on the node where the pool is
currently active, open the RAID page, then select the RAID device.
The remirroring status shows a percentage that is greater than 0. It is fully synchronized at
100%.
10.10.4 Verifying the NSS Mirror Status in the Cluster
After you have configured NSS mirroring with Novell Cluster Services, you should check to ensure
that it is working properly in a cluster environment.
1 Ensure that the volumes on the cluster-enabled pool are mounted on an assigned server by
entering
2 Check the mirror status of the mirrored partition by entering
console of the server where the NSS pool on the mirrored partition is active.
After entering
percent or a message indicating that the mirrored object is fully synchronized.
3 Migrate the pool to another server in the cluster and again check to ensure that the volumes on
the pool are mounted by entering
4 Check the mirror status of the partition again by entering
console.
10.11 Deleting NSS Pool Cluster Resources
Make sure to offline the cluster resource before attempting to delete either the cluster resource or the
clustered pool. For example, if you want to unshare a pool, offline the cluster resource for the pool
before you mark the pool or the device as Not Shareable for Clustering, then you can delete the
eDirectory object for the cluster resource.
WARNING: If you attempt to delete a cluster resource without first offlining it, deletion errors
occur, and the data associated with the clustered pool is not recoverable.
All resource configuration must happen from the master node. On the Cluster Options page for
iManager, connect to the Cluster object, not to Cluster Node objects. On the Storage > Pools page
for iManager, connect to the master node. Run NSSMU only on the master node.
154 OES 2 SP2: Novell Cluster Services 1.8.7 for Linux Administration Guide
at the terminal console.
volumes
, you should see a message indicating that mirror status is 100
mirror status
at the terminal console.
volumes
mirror status
at the terminal
mirror status
at the terminal
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Table of Contents
Troubleshooting
