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Raid configuration advice

On Thu, 3 Jul 2008 03:33:01 -0700, Michael <...@discussions.microsoft.com

We got a new server for SBS Premium 2003, with 5X143GB SCSI Drives. What is
the recommended Raid configuration and partitions.

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On Thu, 3 Jul 2008 08:37:09 -0400, Leythos <...@nowhere.lan

In article <...@discussions.microsoft.com says...

You didn't provide enough information.

How many users?

How much email?

How much DATA for files and profiles?

SQL?

With only 5 drives you have to know those things before you can make a
BEST CASE suggestion.

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On Thu, 3 Jul 2008 04:48:01 -0700, Kevin <...@discussions.microsoft.com

My choice would be RAID 5 , Use four of the drives with one as a hot spare


> the recommended Raid configuration and partitions.

On Thu, 3 Jul 2008 22:16:45 +1000, "SuperGumby [SBS MVP]" <...@your.nellie

me too. (ie. I'd probably RAID5+hotspare)

There is an alternate strategy which makes sense
RAID1 (2HDD) OS 40GB, DATA1 100GB
RAID5 (3HDD) DATA2 280GB.

If the controller has two separate channels there is even a reasonable
chance that if one array was on each channel this alternative would
outperform a single RAID5. 4 active HDD's could be close to saturating a
single SCSI bus.

A possible downside being that the controller's performance may be impacted
by the need to keep swapping calculation types due to the different RAIDs.
Depends on controller.

The main advantage of the 2 vs 1 array set would be the ability to
disconnect one of the RAID1 pair before major change to the system (service
pack, software install, etc...). If it goes toes up you fallback to your
unmodified HDD.

Personally, I prefer the hotspare.

"Kevin" <...@microsoft.com...


On Thu, 3 Jul 2008 05:11:01 -0700, Michael <...@discussions.microsoft.com

Thank you Kevin, correct me if there is better option
C:\30 GB for system and programs
E:\80 GB for Excahnge & SQL
F:\100 GB for DATA (user folders)
G:\leftover space for page files & WSUS

I was playing with the raid configuration & got the raid 5 configured but
couldn't see to configure hot spare. how do you configure hot spare?



> > the recommended Raid configuration and partitions.

On Thu, 3 Jul 2008 09:13:32 -0400, "Lanwench [MVP - Exchange]" <...@heybuddy.donotsendme.unsolicitedmailatyahoo.com

Michael <...@discussions.microsoft.com
There is no performance advantage to putting the swap file on a separate
partition on the same array, note.

This depends entirely on the manufacturer - check the documentation or
support.



On Thu, 3 Jul 2008 08:15:49 -0700, "AllenM" <...@NoEmail.com

I kind of like Kevin's suggestion as far as the RAID5 configuration. Super
G's suggestion is also good. although personally myself I prefer to keep the
OS on it's own array if at all possible. If you have a dual channel RAID
controller I would probably invest in two more 36GB drives and make this a
RAID1 array just for the OS and then use the remaining 5 143GB on the other
channel in a RAID5 array with a hot spare. Just me personal preferences as
I'm sure everyone has their own.


"Lanwench [MVP - Exchange]"
<...@TK2MSFTNGP05.phx.gbl...


Discussion Title: Raid configuration advice
Title Keywords: Raid  configuration  advice