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MDF and LDF locations
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MDF and LDF locations
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GilaMonster
GilaMonster
Posted Monday, October 08, 2012 4:04 PM
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For recoverability, definitely. For performance, maybe. What's the IOPS for the array? What's the required IOPS for the app?
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
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bchernick
bchernick
Posted Monday, October 08, 2012 5:27 PM
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Not sure. So far this is theoretical. but I'll find out. For now assume reasonably modern equipment.
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Greg Edwards-268690
Greg Edwards-268690
Posted Tuesday, October 09, 2012 6:27 AM
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Consider windows page file, tempdb, db files, and log files as candidates to move.
Also part of the picture is as others point out, what kind of IO patterns there are.
And if this is a dedicated SQL server, or runs other applications.
There also is a balance of cost to service level and recoverability, unless budget is of no concern.
If you have a test environment, and a few extra old disks available (nothing fancy needed), you could set up and move the files.
Then run some load tests.
Lots of things to consider.
I tend to get some local disk for some activity, but have some SAN partitiions carved out for those I need throughput and recoverability on.
You could also search for some of the whitpapers on SQL Server Performance.
They have some very good information, although these tend to be more for those where budget does not play a factor.
I don't have the neeed to load 1 TB in less than 30 minutes.
But it is interesting to see what it takes.
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