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 High Availability (2008)
 Recommendations for Os localization on SQL Cluster
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sql-lover
Yak Posting Veteran

84 Posts

Posted - 10/02/2012 :  02:29:04  Show Profile  Reply with Quote
Quick question...

I used to rely on Windows Admins on prior job for the SAN configuration. They usually did a good job. But now, I am more involved on the actual design and setup, which I kind of like, to be honest.

So for this new Cluster setup, the Win Admin it is recommending to place the Windows Os on the SAN itself. In other words, the node(s) will boot up from SAN.

I know for sure data, logs, etc, will be placed in the SAN, on LUNs. But I have never configured a single instance node this way. If the SAN goes down, everything goes down. I just do not like the idea and it is totally opposite to what I've seen before.

What would be the pros (or cons) of forcing the nodes to boot up from SAN?

My suggestion is taking advantage of internal RAID controller and server's disks and setup Windows on RAID1, each one. If the SAN goes down, everything will be down but I won't have to reconstruct the Os, assuming there is no data corruption there.

Any comments?

Thanks in advance ...

chadmat
The Chadinator

USA
1974 Posts

Posted - 10/02/2012 :  13:31:45  Show Profile  Visit chadmat's Homepage  Reply with Quote
I wouldn't do it:

http://support.microsoft.com/kb/305547

-Chad
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sql-lover
Yak Posting Veteran

84 Posts

Posted - 10/02/2012 :  15:26:31  Show Profile  Reply with Quote
quote:
Originally posted by chadmat

I wouldn't do it:

http://support.microsoft.com/kb/305547

-Chad



Yes,

This is the same link, I believe, a Microsoft Engineer from my previous work shared with me.

Thanks,
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