Re: Disk Mangement Advice
From: m.marien (mm)
Date: 01/03/05
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Date: Mon, 3 Jan 2005 14:39:52 -0600
"Joe" <jbcandullo(nospam)@mmadisonservices.com> wrote in message
news:%23PA4xTa8EHA.3124@TK2MSFTNGP11.phx.gbl...
> Greetings,
> I have 6 x 9.1GB Dual channel Wide Ultra 2 SCSI Hot Swap Drives to setup
> Windows 2000 Server on with only 2 applications which are Symantec
> Antivirus and Peachtree Account Software. I plan to use Terminal Services
> for mulit user access (just 3 users). How do I go about creating a RAID-1
> "mirrored Volume" for the OS. It only allows me to create a RAID-1 with
> the unallocated volume space,but not the existing volume with the OS . Is
> there a way for me to properly install the OS and applications in a
> mirrored environment? Also, would you recommend me creating a RAID-5 on
> the other 3 remaining Hard drives for just data and keeping 1 extra as a
> spare for fault tolerance? Appreciate any feedback . Humbly grateful.
>
> Joey
If you are using hardware RAID, then use five of the drives in a RAID5 and
the sixth as a spare.
If you are using software RAID, you can't boot from RAID5 so there I would
suggest using a mirrored RAID1 for the system and the remaining four drives
as a RAID5. I don't think you can have a spare in a software RAID. RAID5
offers redundancy and striping for speed gains plus better utilization of
the space so is generally better then mirrored drives - with the exception
of not being able to boot from a software RAID5.
Using Disk Management, you can convert the system drive to a dynamic volume
and then it will allow you to add a mirrored drive. While the Windows server
will allow you to do this, it's not recomended in some cases.
I have software RAID1 and RAID5 over four drives. I lost the ability to boot
from either of my software mirrored drives after doing a defrag. I think the
only way to fix the problem is to reformat as a basic disk, then convert to
a dynamic, etc. But don't let that scare you, the system drive should be at
least mirrored.
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