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 Best server files placement

Author  Topic 

Hommer
Aged Yak Warrior

808 Posts

Posted - 2014-05-05 : 15:31:01
Hi,

I have this almost production ready sql 2012 built by consultant.

It has mdf(1gb), ldf(5gb) and temdb(8mg) all sitting on C drive.

That box also has D (SSD 100 GB free) and E 750 GB of 1 TB free.

My plan is to let the OS has the C.

move tempdb to E, and mdb+ldb to D.

Is that a good plan?

Thanks!




tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2014-05-06 : 15:33:50
How are C, D and E configured? Are they separate disks? Or just partitions? It's important to understand your load to determine which files are more heavily used than others.

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/
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ferrethouse
Constraint Violating Yak Guru

352 Posts

Posted - 2014-05-20 : 17:57:09
I'd put both the mdf and tempdb on the SSD. It is usually recommended to put those on different drives but with SSD I believe that is less of a concern. Since ldf is sequential writes a spinning disk can handle that fine so E drive.
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ferrethouse
Constraint Violating Yak Guru

352 Posts

Posted - 2014-05-26 : 18:29:31
I was just running some performance tests on my system and actually found performance to be better with the LDF on a HDD than a SSD by about 30%. A traditional HDD is the way to go for truly sequential writes.
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jackv
Master Smack Fu Yak Hacker

2179 Posts

Posted - 2014-05-27 : 01:51:36
Are any of your disks mirrored ? This could be a factor where you place your files. For example, if you place files on SSD and it isn't mirrored, than in a DR situation , you may lose the data , if failovr is required.
In that situation ,place permanent data on mirrored disks

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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