[CentOS] Mounting LVM disk

Mon May 24 15:43:41 UTC 2010
Weiner, Michael <weinerm at ccf.org>

Brian Mathis, On Monday, May 24, 2010 11:17 AM

> Since the disk was connected through a RAID controller it's most
> likely that the disk is formatted for the custom format that the RAID
> controller uses.  The controller then presents that disk to the OS.
> You're going to have to put the drive back into the server so the PERC
> can see it, then you might be able to get to the LVMs.

You are probably right, but I believe it will want to initialize the
drive first which I cannot let it do as I believe that will wipe whats
there.

> PS. You did something like this without making backups first?

The only thing I really cared about was the data on the Raid0 honestly
and I wasn't too concerned about the $HOME directory since there is
another 'copy' on another server - however the individual has since let
me know that they were not in sync and there were things he had done
that he hadn't backed up.

> PPS. You might have a reason, but it would be irresponsible not to
> point out that by using RAID0 you now have an exponential risk of
> losing all of that data.

The Raid0 is simply a large disk pool for temporary data storage. Not
the way I would build this, but I am simply managing the hardware for
this individual, and he has been warned about the loss of data due to
the single point of failure, especially without backing this data up to
somewhere I can get to it with tape

Thanks again
Michael

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