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sql server 2008r2 cluster missing disks situation

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I apologize if this is in the wrong forum.

I have a SQL Server 2008R2 server cluster setup.   Currently, I have 5 drives (C: is the OS and E: to H: are the shared disks).  Drive E: is the data drive.  I also have the system databases (master, model and msdb) in there as well.

I'm wondering how to approach a problem where the shared disks (provisioned from a SAN) goes down and cannot be brought up.   If it does, it takes the master, model and msdb as well.

How should one start a recovery process?  I do have backups of all databases (system databases included).  

As a last resort, I could have instructions to do a complete rebuild/reinstallation but that would be a last (and time consuming) resort.

I do see documentation on recovering master database when a master database already exists.  In this case, there is no existing master database...

Perhaps I should be placing the system databases on the local drive just in case the shared drives go down?   I'm assuming then I should be able to access the sql server and only need to recover the user databases.

Suggestions?



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