Re: Linux IDE RAID question
hi ya
On Tue, 7 May 2002, Dave Sherohman wrote:
> On Tue, May 07, 2002 at 05:24:49AM -0400, Sunny Dubey wrote:
> > I want to setup a RAID-1 system using IDE RAID. I've searched around google,
> > and looked at what the kernel offers. I have a a few cards in mind that I
> > might pick one of. However I was wondering if any of you guys had any tips
> > about which ATA raid card was the better than the rest.
>
> None. Most of them use a hybrid software/hardware RAID which depends
> on a (usually Windows-only) driver to make them work. Even when the
> driver is in place and using the RAID card fully, they tend to not
> work as well as linux's md subsystem. So buy yourself some bigger
> drives and a plain old IDE controller card (you'll want to put each
> RAID drive on its own IDE channel), forget the RAID cards, and just
> use the kernel's RAID support.
for a list of supported hw raid cards...
http://www.linux-ide.org/chipsets.html
plain old ide controllers ( like promise/maxtor ) is $25 range...
- use only the master of each ide cable..
hda mirrored to hdd ( different ide controller )
hdc mirrored to hdb
if you are using 4 disks for raid1... you're better off in sw raid1
- cheaper...
- maybe faster.... ( lots of benchmarking to see for your setup )
c ya
alvin
http://www.1U-Raid5.net
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