Swap should only be in raid if using redundancy because the system won't crash if a drive with swap goes down (I've tested this myself). The kernel does striping on its own if you give the swap partitions the same priority in /etc/fstab (see <a href="http://tldp.org">tldp.org</a> on software raid), so no need for swap to be in raid 0. <div class="gmail_quote">On Mon, Nov 3, 2008 at 4:51 PM, Dotan Cohen <<a href="mailto:dotancohen@gmail.com">dotancohen@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> 2008/11/3 Christopher Lemire <<a href="mailto:christopher.lemire@gmail.com">christopher.lemire@gmail.com</a>>: <div><div></div><div class="Wj3C7c">> I've been using Raid 1 for a while now. It increases my read speeds a little > bit I guess, but I haven't had a hard drive fail where it ever did me any > good. I just yanked a hard drive that was running in the raid out of my > computer and watched Linux not crash and continue to run uninterrupted and > also did simulated failures and rebuilding with mdadm. What I really want is > performance. Raid 0 offers more performance than 5 and raid is not a backup > solution, so what I want to do is this. Many people complains about raid 0, > but I have an idea. I want cron jobs to run rsync for backups synchronizing > my home folder to a new 640 gb Seagate hdd I'm looking at buying. The > backups should be automated and done often, so, I can have @reboot in my > crontab and rsync run by cron at times I am not likely to be doing anything > or much with my computer. And if rsync only has to copy only new or modified > files, it shouldn't take long at all to perform a backup and maybe I can > have it run ever 3 hours or whenever the computer has been idle for 15 > minutes. I don't know how to do that except I think > gnome-screensaver-command could check if the screensaver is active and if it > is, I'm not using my computer, and rsync could go to work backuping up my > files. The two drives I'm using for raid 1 right now that I want to > reinstall Ubuntu 8.10 with raid 0 with are both identical sata2 Seagates 320 > gb drives. I want the partitioning scheme to be identical on both, but how > would I do that if grub can't boot a Linux kernel that's in raid 0? I've > made a /boot partition and put it in Raid 1 before but people have told me > that its bad to have to have raid 1 and raid 0 that way and my performance > would be lost, so how can I keep both drives with the same partitioning > layout with Raid 0? > </div></div>I'd keep the boot partition on sda and leave the corrosponding partition on sdb empty. Or, you could have that partition on sdb as swap. I don't think that you need to RAID swap if your goal is data redundancy. Just RAID the data partitions. -- Dotan Cohen <a href="http://what-is-what.com" target="_blank">http://what-is-what.com</a> <a href="http://gibberish.co.il" target="_blank">http://gibberish.co.il</a> א-ב-ג-ד-ה-ו-ז-ח-ט-י-ך-כ-ל-ם-מ-ן-נ-ס-ע-ף-פ-ץ-צ-ק-ר-ש-ת ä-ö-ü-ß-Ä-Ö-Ü -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div> -- Christopher Lemire <<a href="mailto:christopher.lemire@gmail.com">christopher.lemire@gmail.com</a>> Fedora 64 bit Linux Raid Level 1