Removing LUNs from Solaris 10
Hi all, I have a 2-node Solaris 10 11/06 cluster running Sun Cluster 3.2. It's shared storage is supplied from an EMC Clariion SAN. Some of the LUNs used by the cluster have recently been replaced. I now have multiple LUNs on this cluster that are no longer needed. But there's a problem.
Last week I added, then removed, a new LUN to the cluster and one of the nodes in the cluster rebooted. Sun Microsystems analysed the problem and identified the reboot as a known issue (Bug ID is 6518348):
On Solaris 10 Systems, any SAN interruptions causing a path to SAN devices to be temporarily offlined may cause the system to panic. The SAN interruption may be due to regular SAN switch and/or array maintenance, or as simple as a fibre cable disconnect.
I need to remove the unused LUNs as the SAN that they live on is being moved.
Is there any way I can safely remove the unused LUNs without causing or requiring server reboots?
Thanks in advance,
Stewart
Hi Stewart,
Usually devfsadm -Cv ( -C = cleanup, v = verbose) does a good job
If it doesn't work, you can use cfgadm -c unconfigure/remove <LUNid>
Ex: cfgadm -c unconfigure c2::50060161106023dd;cfgadm -c remove c2::50060161106023dd
Marco
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