On 2003-10-13T22:38:40,
Thomas Horsten <thomas@horsten.com> said:
> Having said that, BIOS RAID does solve a few problems inherent to software
> RAID's, particularly the boot process
The boot process is a real problem. It can be partly solved in the
bootloader - iff the BIOS is smart enough to try all disks until it can
read one copy -, but yes, BIOS RAID does have some advantage here. This
is pre-kernel stage though and so beyond this driver anyway.
After the kernel is up and running, we can handle that just fine.
> and consistency of RAID's between operating systems.
That's fortunately a problem I don't have to care about ;-)
> > Windows doesn't use the BIOS to access the device at all; the
> > corresponding hardware drivers emulate that.
> I know, but the BIOS supports its boot up to 32-bit mode. Which means you
> could see the drive from DOS, etc.
Well, for the boot loader stage it does have some advantage as I said.
But beyond that it doesn't matter and is bypassed.
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
High Availability & Clustering ever tried. ever failed. no matter.
SuSE Labs try again. fail again. fail better.
Research & Development, SUSE LINUX AG -- Samuel Beckett
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