Add new disk resource to existing cluster group‏

In this post I will work you through on how to add new disk as a resource and dependency to an existing cluster group. Key requirement will be to ensure that a new disk/LUN had been provisioned and added as new drives to the SQL servers. Also ensure that the disk is formatted with the appropriate Allocation Unit Size. Refer to this Post for more details.

Installation Steps

– Log in to the active cluster node -> Open the Failover Cluster Manager -> Navigate down to Storage -> Right-click on Storage and click Add a disk

– On Add Disks to a Cluster -> Ensure the new disk is selected -> click OK

– The cluster manager will add the new disk and bring it online

– When the disk is added, you will notice under Available Storage the newly added disk. You can rename the disk here as the case may be for easy identification

– Select the cluster group -> Right-click on it and click Add storage

– On Add Storage screen -> Select the new storage -> click OK

– The new disk should now be listed as part of the Disk Drives assigned to the cluster group

– Under Other Resources -> Right-click on the SQL Server Instance name -> click Take this resource offline

– Under Please confirm action -> click Take SQL Server Instance offline

– When the instance is offline -> Right-click on it and select properties -> click on Dependencies tab -> click the Insert botton -> click the drop-down botton and select the new disk -> click Ok

– Right-click on the SQL Server Instance -> click Bring this resource online

– Also do same for the SQL Server agent by bringing it online

Post Configuration:

– Complete a test failover of the cluster group to the passive node and then fail back to the node where the resource was initially to ensure that disk can move between the cluster nodes

– Ensure that all cluster resources are online and review the logs for any critical errors

 
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