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Re: RAID controllers -rehashed

daemon@ATHENA.MIT.EDU (Jos Vos)
Wed Nov 20 15:58:33 1996

From: Jos Vos <jos@xos.nl>
To: redhat-list@redhat.com
Date: Wed, 20 Nov 1996 21:53:09 +0100 (MET)
In-Reply-To: <199611202032.OAA01757@hi.registrar.ksu.edu> from "James Cook" at Nov 20, 96 02:32:13 pm
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com

> > rehashing the RAID controller discussion of a couple weeks ago...
> > DPT seems to be universally suggested...
> > Once installed, what kind of setup process is needed to set up teh disks, 
> > and to set the striping, and to activate?
> > or, rather, where are docs on setting up a hardware RAID 5 on linux?
> 
> This part is theory for me, but I believe you have to use DPT's software to
> set the card up to do RAID.  There's DOS, Windows, OS/2 and other versions
> of the setup software.  Pick one, run it and it will set the card up to do
> the RAID for you.  At that point, the drives look like one drive to Linux.

This is true.  You can do this with a DOS bootflop and the DPT utility,
for example, and Linux then sees the logical volume as a "DPT disk".
So, in Linux you shouldn't (and can't) do anything in this case,
all is done at the controller level with the specific DPT utility.

-- 
--    Jos Vos <jos@xos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20 6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20 6948204


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