Hi Alvin, On Sun, Aug 17, 2003 at 02:25:39PM -0700, Alvin Oga wrote:
> > I was wondering can I set up raid when a partition is mounted? > > e.g. hda3 is /home and I want to set up raid1 with hdc3. > > you can do the "mirroring" ( raid1 ) of hda3 to hdc3 > > but if you expect to boot off hdc when hda is removed, than it > probably wont work I do not want to boot of it. > and more importantly partition type should be F3 ( linux-raid ) insted of > ext2 or ext3 I had already made 3 partions (not in use) on both disk EXT3, and made a raid one system with it. Now I have changed the type to FD (Linux raid autodetec). I could mount it also when being ext3. Can't I use ext3 on the raid system? > > Can I run mkraid when hda3 is in use? I would use the following > > raidtab: > > no ... > > you do mkraid /dev/md0 .. you do NOT format /dev/hda or /dev/hdc > individually .. other than the initial fdisk if you even need to do > that Hmm, I think I read in the sofware raid howto that I had to set up all the partitions. I now think they meant with it that I had to partion it, but not put a filesystem on it. Right? Why can't one put a filesystem on it before the raid process? > > > raiddev /dev/md0 > > raid-level 1 > > nr-raid-disks 2 > > nr-spare-disks 0 > > chunk-size 4 > > persistent-superblock 0 > > device /dev/hda3 > > raid-disk 0 > > device /dev/hdc3 > > raid-disk 1 > > looks good > > > Also, would I lose data? When happens if I change the above order? > > if you type the wrong commands ... > - yes... you lose data on /dev/hda > > order doesnt mean anything in the above > > more software raid howto ( converting from /dev/hda to sw-raid ) > > http://www.1U-Raid5.net/HowTo Ok thanks! There is more info there than in the software raid howto on tldp.org Rudy -- Rudy Gevaert [EMAIL PROTECTED] Web page http://www.webworm.org GNU/Linux user and Savannah hacker http://savannah.gnu.org Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. - Albert Einstein (1879-1955) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
