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Storage group vs database files

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Storage group vs database files - 8.Sep.2008 2:39:49 PM   
tbiggins

 

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We're still in the early phases of testing a brand new Exchange 2007 SP1 org for approx 275 - 300 users.
Right now we have a Windows 2008 server with the following drives (all RAID 10 configs):

c: 72GB (for OS / Exchange server)
d: 136GB (databases)
e:  36 GB (logs)
f: 136GB (LCR databases)
g: 36 GB (LCR logs)

We were planning three storage groups, based on first letter of username (don't ask, it actually works well for us!)  So we would call them AE, FM, NZ.

We keep hearing suggestions to separate databases from logs, but no one ever mentions where the storage group system files should go-- I was thinking they should go on d:, in d:\AE\, d:\FM\, d:\NZ, and stick the databases in the same folders.

Is this bad?  Should they stay on the C: drive, keeping only mailbox databases on D:?  Thanks!
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RE: Storage group vs database files - 8.Sep.2008 2:50:05 PM   
mark@mvps.org

 

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You keep them in the same place as the log files.

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RE: Storage group vs database files - 8.Sep.2008 3:32:20 PM   
tbiggins

 

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Thank you so much.  Maybe I'm just over-thinking the process.
So the storage calculator refers to Database Disk and Log Disk so, in other words
C: for OS and Exchange
a second drive for storage group and its logs
a third drive for database?

(Sorry, just paranoid I won't give myself enough space!)

(in reply to mark@mvps.org)
Post #: 3
RE: Storage group vs database files - 8.Sep.2008 3:56:59 PM   
mark@mvps.org

 

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The storage group doesn't actually exist in an identifiable shape. The SG /is/ the transaction logs and system files.

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RE: Storage group vs database files - 8.Sep.2008 7:09:32 PM   
enzogoy

 

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So does that mean he need:
C: for OS and Exhange (Storage Group)
D: for Database

only 2 drives ?
Thank you
enz

(in reply to mark@mvps.org)
Post #: 5
RE: Storage group vs database files - 8.Sep.2008 7:38:39 PM   
mark@mvps.org

 

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Aside from the strong suggestion that you use some RAID protection yes, you only need those two. Ideally you'll have three, one for the OS and application, one for the logs and another for the database.

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Mark Arnold (Exchange MVP)
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