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sql server clustering : 2 node SQL 2005 cluster


Bryan
1/24/2006 12:31:03 PM
I am new to clustering. I will be setting up a 2 node cluster using W2k3 EE
and SQL 2005. I have a Dell PE 2850 and Dell PE 1850 for the servers, each
containing one 73 GB HD and a PowerVault 220 with 4-73GB HD’s for the shared
Drive. I am uncertain of how to configure the shared drive. Can someone help
Geoff N. Hiten
1/24/2006 4:29:24 PM
First answer is "don't".

Asymmetrical Windows clusters are not supported. I would never build a
cluster around a PV220 for a number of reasons, primarily revolving around
stability and performance.

Maybe I would build such a system for training, but now with Virtual Server,
I doubt I would even do that.

In my experience, a cluster built around this configuration will be less
reliable and work far slower than a stand-alone system built out of either
host node.

--
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP



[quoted text, click to view]

WhiteJul
3/18/2006 6:57:07 PM
I understand that the two servers have to be alike, however I would be
interested in see how are you opposed to use a PV220. Two years ago I Dell
recommended me 2 Dell 2650 plus a PV 2000 to implement a cluster, they were
also in the MS HCL. I'd would appreciate if you could share with us what are
the issues relatated with stability and performance too.

Thanks
White

[quoted text, click to view]
First answer is "don't".

Asymmetrical Windows clusters are not supported. I would never build a
cluster around a PV220 for a number of reasons, primarily revolving around
stability and performance.

Maybe I would build such a system for training, but now with Virtual Server,
I doubt I would even do that.

In my experience, a cluster built around this configuration will be less
reliable and work far slower than a stand-alone system built out of either
host node.

--
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP



[quoted text, click to view]


Geoff N. Hiten
3/20/2006 11:29:33 AM
I have had too many PV220 backplanes go bad on me to believe that there is
not a serious design or production problem. Ever since Dell upgraded the
PV220S to handle Ultra-SCSI-320, I have been very dissatisified with the
stability of that unit. The main symptom is an inability to "see" a
replacement drive after a disk failure. I suspect the original failures
were with the backplane instead of the disk since a backplane replacement
solves the problem most of the time. The high failure rate is especially
annoying since even brand new units get refurbished replacement parts. If I
wanted to purchase a used array, I would have gone to ebay.

Finally, the PV220 has no built-in caching and you can't use controller
cache on a cluster. So your performance will be dramatically lower that on
a stand-alone system.

--
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP




[quoted text, click to view]

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