failover cluster management cannot locate physical disk from the SAN storage

Dear experts,
Please help me on this one.  my office hour yesterday was gone and haven't solve the problem.  This is what i've noticed.

on services.msc cannot start the MSSQL server and sql server agent and others only SQL Server browser works.  I've opened SQL server configuration manager and started from there it also didn't work..change the log.on account of each services..didn't work also.  Now we have two SQL that was clustered and i guess the database of the SQL was connected to the SAN with physical disk e:.  I've opened the Cluster Administrator and find out that physical disk e: is offline..tried to make it online but it won't....it's not shown either on the my computer the physical disk e: and also in the disk management.  going to properties on the physical disk e: the location is drive c and d...tried to create another physical disk pointing to the SAN storage but only 3 out 5 storage are shown..i believe that the others not shown is the one the points to physical disk e:. open the HP SAN viewer and all of the storage has a status good.

i'm guessing that why the MSSQL Server did not start because it cannot locate the physical disk e of the SAN...but im losing anymore options...Please help expert.

a big thanks

Kim
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zeltrustAsked:
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zeltrustAuthor Commented:
problem solve SQL server was setup in the SAN in controller 1...controller 1 is not functioning...move it to controller 2 and problem is solve..maybe it's a hardware issue..need to contact HP since there are errors on the event log
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Gerald ConnollyCommented:
So what failed?

In a cluster both nodes have to see the storage and the cluster manager maintains only one of them online at any time. If the online node/storage link fails then it should fail-over to the other node, but if it hasnt been setup correctly the other node will not have access to the SAN. Could be down to incorrect configuration of the node, the cluster manager, or a hardware failure that has been ignored or overlooked, or maybe even down to LUN masking that hasnt been setup correctly.

How about some more detail, screen shots etc?
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zeltrustAuthor Commented:
none
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Gerald ConnollyCommented:
As i alluded too in my post, its either a config issue, a wiring issue or a hardware issue.

How come you didnt know it wasnt working?   Sounds like you need to re-appraise the monitoring of your systems and implement a regular test of the redundancy features.
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