[CentOS] Hardware or Software RAID w/CentOS 4.4 & Gigabyte GA-81945GZME-RH motherboard

Les Mikesell lesmikesell at gmail.com
Sat Sep 30 19:32:43 UTC 2006

On Sat, 2006-09-30 at 13:53, Dale wrote:

> Helping a friend setup a new machine - it will be a low volume web and 
> mail server. He wants to set it up with 2 drives in a mirror setup. The 
> motherboard he bought supports mirroring on the hardware level.
> I have heard of issues before using hardware raid on Linux systems. 
> Which way would you recommend we go on this?

The cheap versions of hardware raid really do the work in
software in the driver.  I'd prefer Linux software raid
(md devices) over that, simply because you can swap either
or both disks into a different machine and use it without
needing a matching controller.  If the controller has its
own CPU I'd probably use hardware raid, although it is 
still a toss-up for RAID1 since simple mirrors don't add
a lot of overhead.

  Les Mikesell
   lesmikesell at gmail.com

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