On Tue, 23 Oct 2001, Jukka Marin wrote:

>On Tue, Oct 23, 2001 at 01:47:34PM -0500, Tom Uban wrote:
>> Is there any sort of software support for using a second (identical)
>> drive for redundancy in case of primary disk failure?
>
>Does 'man raid' help any?

It helps him insofar as realizing that what he wants is RAID1 to mirror
his system disk.  However, although he can boot off of a RAID1 in the
latest version of NetBSD, it still doesn't provide any redundancy in
case of primary disk failure.  If that first disk fails, chances are it
has his requisite non-mirrored boot partition on it containing the
kernel and/or boot loader.  This is something which software RAID cannot
get around; a BIOS or PROM is going to want to load the
kernel/bootloader off of a single disk, it knows nothing of software
RAID.  If he wants his system to recover from a disk failure gracefully
he should look at hardware raid controllers, it's the only option.

-- 
"Never put off until tomorrow what you can do today.  There might be a
law against it by that time."	-- /usr/games/fortune, 07/30/2001

Brandon D. Valentine <bandix at looksharp.net>