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Expanding the Size of Data and Log Files Drives in SQL SERVER 2008 R2 Clustered environment


Expanding the Size of Data and Log Files Drives in SQL SERVER 2008 R2 Clustered environment

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Aspet Golestanian Namagerdi
Aspet Golestanian Namagerdi
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We have SQL SERVER 2008 R2, in Clustered environment(OS is Windows 2008).We have plan to expand the size of Data and Log Drives(From 200GB to 400GB).By expanding the size of drives,Will SQL SERVER automatically detect new sizes,or it needs to be uninstalled and installed again.
Evil Kraig F
Evil Kraig F
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Sql Server won't care about the drive size unless you tell it to (such as expanding a filesize manually), or it needs to autogrow an existing file. Then it just tries to grow unless your drive complains.

So, I'm not sure why you want SQL Server to detect the drive size?


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Aspet Golestanian Namagerdi
Aspet Golestanian Namagerdi
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I don't want to SQL SERVER detect the Drive size,I just want to make sure,expanding drive size will not cause any problem for SQL SERVER in Cluster environment.
Evil Kraig F
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Ah. That would depend more on the method of expansion I think, but if you're working with any of the drives that SQL server relies on, you can just stop the service (instead of uninstalling) during the upgrade time, then bring the service back up when you're done, if you want to be sure.


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Imran Ashraf-452633
Imran Ashraf-452633
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Is it SAN Storage you are using or actual physical drives?

What I have found is that when it is SAN Storage you need to make sure that the drives are set to Dynamic expansion otherwise you need to bounce the instance. If they are Dynamic then you have nothing to worry about. SQL Server does not care about the drive until it finds it no longer has any space.
Aspet Golestanian Namagerdi
Aspet Golestanian Namagerdi
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No,it is not dynamically expanded and we need manually to expand them.does this cause any problem for SQL SERVER
Steve Jones
Steve Jones
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It could. There's a lot of different ways that SANs work. You can contact your vendor, but if the drives aren't set for dynamic expansion, you might need to bounce the Windows host to get the proper sizes.

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