On Mon, 24 Jan 2011 15:10:43 -0500, Jacob Vickers wrote:
On 01/23/2011 12:27 PM, Cecil Yother, Jr. wrote:
I have a server that I installed the QMTISO on with 2TB hard
drives. I
installed the OS with only one drive installed because I wanted to
backup to the second drive. When I installed the second drive it
now
sees them both as one. I realize this is because the LVG setup.
The
question is can I run the second drive independent of the LVG?
CJ
Sure you can.
I strongly recommend though that you use the drives in a raid-1
(mirrored) configuration. That way, you get the benefit of having a
copy
of everything on a 2nd drive (I would not call this a backup
however),
and the host will continue to run even if/when one drive fails.
I don't think the QMTISO will allow you to do this, but I'm not
sure.
You'll need to do a manual/custom HDD configuration for that, which
is
fairly easy to do with the CentOS installer (anaconda).
When you select the Advanced option on the ISO installation it will
allow you to manually set partitions.
CJ - if you're asking about REMOVING a device from a LVG, you'll need
to
do some research on this - if they're active as one big drive then
your
current data may be already striped across both spindles and removing
one
will remove portions of your current data. I believe there are some
documents and tools documented at the Linux Documentation Project
that ay
offer some suggestions on how to remove a drive from configurations
such
as this, but you'll need to look into it a little more. I do not have
a
lot of experience with it - after being bitten once I use standard
mounts
and RAID.
Hope that helps.
Sounds like I'll be leaving it as is and cross backup to another
server.
Thanks
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cj's
2318 Clement Ave
Alameda, CA 94501
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