From: Tony Williams 

There are a few different RAID configurations; RAID 1 is disk mirroring,
others deal with striping.

I'm no expert but as I understand it when you mirror two drives they both
get all the information at the same time.

The OS and system files get stored on both drives and the system will read
from whichever drive can provde the data - down to the extent of reading
half a file from one drive and the rest from the other.

Hey, Geo! You know more about this than me - any advice?

--
Tony

Ellen K. wrote:
> ?   Aren't mirroring and RAID two different things?   I thought RAID
> stripes the data on different disks so if one fails the system can
> figure out what got lost, and mirroring is just what it sounds like...
>
> So a mirroring question, does the mirror read from the bad drive or does
> everything write originally to both?
>
> Finally, if the problem is on the part of the C drive that has the O/S
> and/or program files, what is the result with RAID and with mirroring?
>
> On Sat, 02 Nov 2002 21:31:40 -0800, Tony Williams 
> wrote in message :
>
>
>>Ellen,
>>
>>If you're serious about using an extra drive to improve data integrity
>>you might want to look into RAID mirroring. The various Windows Server
>>editions support it in software so all you need to buy is the extra drive.
>>
>>Here's a page with a good explanation and links to HOWTOs :
>>
>>http://www.microsoft.com/windows2000/en/server/help/default.asp?url=/WINDOWS2
000/en/server/help/sag_FAULTconcepts_01.htm
>>
>>A search for "mirrored volumes" at MS's web site pulls up
several useful
>>links.
>
>

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