Re: raid question
hi ya rudy
On Mon, 18 Aug 2003, Rudy Gevaert wrote:
> I do not want to boot of it.
okay... another step in raid-land for a later day to setup
> > 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?
you can do anything you like to the individual partitions
when you do mkraid /dev/mdo ... ( everything is lost that was previously
done so there is no point to doing anything outside of "raid commands"
- if you want to preserve /home ... tar it up before creating
the raid and do the raid stuff correctlt and than restore from
when you keep your existing old /dev/hda1 intact and try to make
a raid1 mirror .... some of the "mirroring will not work" since oyu
didnt do a "mkraid /dev/md0"
- its a bad idea NOT to do "mkraid /dev/md0"
especially if you expect the mirror to work 100% correctly
like when /dev/hda is removed ( simulated failed disk )
lots of docs on up to upgrade /dev/hda to /dev/md0 ..
- but i dont recommend it or use it that way
ultimate tests ...
- pull /dev/hda
-- reboot ...
- than pull out /dev/hdc ...
-- reboot ...
if it passes your tests ... it works ..
> Why can't one put a filesystem on it before the raid process?
that is done by "mkraid /dev/md0 ; mke2fs -j /dev/md0"
anything else is NOT raid and is wiped out anyway
> > 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
thats the whole point of providing the url ..
- pick the one of dozen ways to upgrade from /dev/hda to sw raid
- and there will be conflicting "howto" instructions too
depending on what the resulting raid has to do and the process
of how to get there