Raid Config for Ex 2007
- From: Rames <Rames@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 22 Nov 2007 17:18:00 -0800
We’re looking at migrating from Ex 2003 to Ex 2007. Our current configuration
performs reasonably well. It consists of following configuration on each of
two servers:
~1000 users
~30 GB data (average 20MB limits)
3 storage groups
9 databases + 1 public folder
4GB of memory
Dual Processors
OS - Raid 1
SMTP Queue – Raid 1
Logs – Raid 1
Data – Raid 5 (7 x 15k rpm drives)
We have a Barracuda SPAM filter, and an OWA server.
We have the following hardware for replacement:
~1000 users
~300 GB data (assuming 100MB limits)
9 storage groups (or should they be consolidated?)
9 databases + 1 public folder (or should they be consolidated?)
16GB of memory
Dual Qual processors
OS – Raid 1
We’ll have a Barrcuda SPAM filter, an OWA server and a Hub Transport
server.
For Ex 2007 we have 10 x 300GB, 15k rpm drives (data) and 4 x 73GB, 15k rpm
drives (logs). I can imagine one of the following options (for data and one
for logs) for configuring these drives:
Data:
5 x Raid 1
1 x Raid 5
2 x Raid 5
1 x Raid 10
Logs:
2 x Raid 1
1 x Raid 10
1) Should the storage groups and/or databases be consolidated so there are
fewer?
2) Which data configuration is best for performance? I know generally
speaking Raid 10 will perform better for a single database but I don’t know
what to expect when we throw multiple databases on there.
3) Which log configuration is best for performance? Same comment as #2.
4) Is there any benefit to partitioning the data drives such that each
partition supports a single database possibly reducing fragmentation on each
database?
5) Is there a better approach given our environment?
.
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