IDE RAID

If you're going to do IDE RAID, >shudder< make sure that each IDE controller
has only one drive on it. Only one drive can be active at a time per IDE
channel, so if you don't want to pay a HUGE performance price, you should
really only have one drive per ribbon cable. We set up a system for a
client who was insistent on IDE RAID 5. The way we did it was *two* PCI
Promise controllers with one 120GB drive (set as master) per ribbon cable.
This is the only way that all four drives could actually be active
concurrently.

It actually ran pretty well.
--
Thomas Cameron, RHCE, CNE, MCSE, MCT
Cameron Technical Services, Inc.
(512) 454-3200 Main
http://www.camerontech.com

----- Original Message -----
From: "Jay" <jay@edgeos.com>
To: "PLUG Discuss" <plug-discuss@lists.plug.phoenix.az.us>
Sent: Tuesday, June 03, 2003 11:33 PM
Subject: IDE RAID


>
> Has anyone used any of the *hardware* IDE RAID controllers under Linux?
> I'm looking at ones from Promise and Adaptec. Thoughts? I basically want
> to do a simple RAID mirror of two IDE drives, but I don't want to do
> software RAID - I want "real" hardware RAID that is 100% transparent to
> the OS. Any thoughts?
>
> ~Jay
>
> --
>
> == Jay Jacobson
> == Edgeos, Inc. -- http://www.edgeos.com
> ==
> == Automated Information Security and Vulnerability Assessment
>
>
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