There is little point. I'm sure someone can think of an absurd situation in which it might help, but its just interesting that the linux kernel allows software raid on a partition by partition basis, even if the two partitions are on the same drive. Its actually quite useful in that you can set up 2 hard drives each with a linux partition and a windows partition, then set linux to do software raid on it. That's what I always do. Windows software raid takes over both hard drives, then requiers a third because it makes them non-bootable. Really a backup device beats any system of 1HD software raid 1, but it might be fun to mess around with if you're bored. Certainly setting up software raid 0 can be fun on a desktop system, though. That's what I do, and I'm quite happy with it as long as redhat sets the DMA on (I always have to force it on on two different motherboards because of its over ambitious bad controller protection).
-Eric Hattemer ----- Original Message ----- From: "Brian Low" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, August 15, 2002 3:23 PM Subject: RE: [luau] Software RAID (Donation of Oracle 9i Linux) > What would be the point of doing a RAID with 1 drive :) You get 0 > redundency. > > Brian > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Eric Hattemer > Sent: Thursday, August 15, 2002 2:53 PM > To: [EMAIL PROTECTED] > Subject: Re: [luau] Software RAID (Donation of Oracle 9i Linux) > > > In litteral terms, you can do software raid on linux with 1 HD and two > partitions. However, it probably hurts performance, rather than > improving > it. The multiple heads on a hard drive all line up vertically and scan > what's called a cyllinder (multiple sectors stacked on top of each > other). > They cannot read two partitions at the same time. You could test out > software raid with two partitions, but I don't think you'd be too happy > with > it. You can probably get RAID 1 going with a very slight advantage. It > won't save you in case your drive fails entirely, but if you start to > get > bad sectors or filesystem errors, at least your HD is backed up on > another > partition. > > -Eric Hattemer > > ----- Original Message ----- > From: "W. Wayne Liauh" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, August 15, 2002 1:54 PM > Subject: [luau] Software RAID (Donation of Oracle 9i Linux) > > > > <Not really :)> > > > > Just thought that with the current advancement of multiple-head HDs, > things might have changed. > > But I suppose if someone can develop a new type of BIOS? > > > > > > _______________________________________________ > > LUAU mailing list > > [EMAIL PROTECTED] > > http://videl.ics.hawaii.edu/mailman/listinfo/luau > > > > > > _______________________________________________ > LUAU mailing list > [EMAIL PROTECTED] > http://videl.ics.hawaii.edu/mailman/listinfo/luau > _______________________________________________ > LUAU mailing list > [EMAIL PROTECTED] > http://videl.ics.hawaii.edu/mailman/listinfo/luau > >
