On Feb 20, 2002 16:40 -0800, Rupa Schomaker wrote: > Andreas Dilger <adilger@turbolabs.com> writes: > > Swap is a bad move, since you can just add multiple swap spaces with the > > same priority (if you so choose) and it will do the striping for you. > > Likewise, you could put each of the above trees on their own drive and > > you would probably get better overall performance than striping. > > This suggestion has always bothered me. Yes, if all you care about > performance, setting up swap this way works fine. However, for every > drive you add you increase the likelyhood that you're system will fail > due to a drive failure (what happens when one of the swap slices > suddenly dissapears?). > > The better (IMO) suggestion is to use MD to setup RAID-1 mirrors and > then swapadd those. That way, if one of your drives go south, you > still have a workable swap. Well that is true of ANY setup that uses RAID-0/stripe, or any unmirrored disk for that matter. I am by no means advocating the use of striped swap, just saying that to stripe at the physical layer is no benefit over letting the swap do its own striping. Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/ _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
