Help with ES v3 Raid1 (Mirror)

Cleber P. de Souza cleberps at gmail.com
Wed Feb 1 15:40:06 UTC 2006


OK.
Put your success of failure here later.
I had this problem one time making raid from a existing Red Hat system
and solve in this way.

On 2/1/06, Marc Leveille <marc.leveille at nrc-cnrc.gc.ca> wrote:
> Hi, I never ran e2fsck -f /dev/md0 after making fs on /dev/md0.
>
> I will try this this morning.
>
> Marc
>
> On Wed, 2006-02-01 at 10:15 -0200, Cleber P. de Souza wrote:
> > Hi Marc.
> >
> > After run mdadm --create you must also run mkfs.ext3 /dev/md0 and
> > e2fsck -f /dev/md0.
> > So you will get OK.
> >
> >
> >
> > On 1/26/06, Marc Leveille <marc.leveille at nrc-cnrc.gc.ca> wrote:
> > > Hi, I'm trying to setup a Raid1 mirror between 2 hard drives. I have the
> > > following.
> > >
> > > 1- SDA 36gig System disk
> > > 2- SDB 36gig blank
> > > 3- SDC 36gig blank
> > >
> > > I'm trying to Mirror SDB to SDC by doing the following.
> > >
> > > 1- By using FDisk I created SDB1 and SDC1 on each drive.
> > > 2- I then makefs ext3 for each partition.
> > > 3- Then I used mkadm --create /dev/md0 --level=1
> > > --raid-devices=2 /dev/sdb1 /dev/sdc1
> > >
> > > I ran watch cat /proc/mdstat until the process was completed.
> > > 4- when it was complete I tested the mount using mount -t
> > > ext3 /dev/md0 /home/apps and it mounted and I was able to open it.
> > > 5- I then edited fstab with /dev/md0 /home/apps ext3 defaults 1 2 and
> > > rebooted.
> > > 6- I now get the following error at boot.
> > >
> > > FSCK.ext3 /dev/mdo the superblock could not be read or does not describe
> > > a correct EXT2 Filesystem.......bla bla and asks to run E2FSCK -B 8193
> > >
> > > 7- I used Vi and comented out the mount in fstab and re-booted. I tried
> > > to manually mount the drive the same way as (Item #4) and it now fails
> > > Mount: Wrong FS Type.
> > >
> > > Any ideas as to what I need to do. Sould I use ext3 ?
> > >
> > > thanks
> > >
> > > Marc
> > >
> > > --
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> >
> >
> > --
> > Cleber P. de Souza
> >
>
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--
Cleber P. de Souza




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