hi ya rudy
On Sun, 17 Aug 2003, Rudy Gevaert wrote:
> Hello,
>
> 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
and more importantly partition type should be F3 ( linux-raid ) insted of
ext2 or ext3
> 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
> 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
c ya
alvin
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