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From: Drew <drew.kay@gmail.com>
Date: Wed, 21 Oct 2009 08:28:47 -0700
Message-ID: <c268e4660910210828n5f0f523cnb8d9da476b7f1b64@mail.gmail.com>
Subject: Re: [linux-lvm] Total free space using added VGs and LVs
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To: Lou Arnold <larnolda1@gmail.com>
Cc: LVM general discussion and development <linux-lvm@redhat.com>

> The documentation wasn't specific. I believe the intent was simply to
> migrate the data to another logical volume to temporarily allow the source
> volume to be reduced and/or removed. But let's assume that has happened or
> that doesn't need to happen. So now we need to unmount LogVol00, reduce it
> to its original nunber of extents and then remount it (either before or
> after remount we remove the physical drive.) I assume you can't try this =
or
> you'll screw up your computer, but I have a system that I screw=C2=A0up a=
nd
> easily restore from a OS image. So no need to be too cautious.

I've done this on several occasions.

If you want to play with various scenarios in LVM, I'd recommend
reading the LVM How-To @ http://tldp.org/HOWTO/LVM-HOWTO/ . Sections
11 & 13 cover the most common tasks you'll encounter in LVM. Play
around, don't be afraid to break things, and if you have questions
feel free to give the list a shout.


--=20
Drew

"Nothing in life is to be feared. It is only to be understood."
--Marie Curie