Re: Recover RAID

[Jeff Sadino <jsadino.queens@xxxxxxxxx>]

Thanks for the insight.  Is there any way to bring it back to life not necessarily as a raid, but just back up so I can get to the data and have my license managers working?  What if I edit md1 out of the raidtab file?

Thanks,
Jeff

On Wed, Mar 3, 2010 at 4:12 PM, Christopher Chan <christopher.chan@xxxxxxxxxxxxxxx> wrote:

On Thursday, March 04, 2010 10:09 AM, John R Pierce wrote:
> Jeff Sadino wrote:
>> Do you think I can copy the unknown partition from the second drive
>> onto the first drive and have everything work again?
>
> if there's a md mirror, god knows what will happen when you boot it up
> with both drives present, it oculd decide to mirror the unformatted
> partition to the original, I've seen worse happen when the juju is
> messed with.

Well, he messed up a stripe. Zero chance of recovery.

>
> I think I'd totally wipe the drive you messed with, like zero it.   Then
> boot up the system in single user with just the one drive you didn't
> hose, and BACK UP EVERYTHING ON IT TO EXTERNAL SAFE MEDIA.  use dump or
> something to do the backup that does a proper inode level backup of each
> volume.   then add the wiped/blank drive, and remirror it with the mdadm
> commands to repair the raid, then reboot to normal mode and see if its
> all safe.
>

Won't apply. He can kiss md1 good bye.

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