[mythtv-users] Moving drives containing LVM2 volumes, change of partition device nodes

[Tom Dexter]

On Sun, Mar 30, 2008 at 7:08 PM, Boleslaw Ciesielski
<bolek-mythtv at curl.com> wrote:
> Tom Dexter wrote:
>  > I know my way around well enough to do this, but one aspect of the
>  > LVM2 end of it has me confused, and I'm not finding anything that
>  > clears this up: If I do this, obviously the old hda4 and hdb1
>  > partitions will change depending on how I move things around (for
>  > example to hdc4 and hdd1).  What exactly (if anything) to I need to do
>  > with LVM?  I see my existing partition device names (hda4 and hdb1)
>  > referenced in my current /etc/lvm/backups/vg backup file.
>
>  You should not have to do anything with LVM.
>
>
>  > Does LVM2 care about those actual device names
>
>  No.
>
>
>  > or does it strictly
>  > depend on it's own unique identifiers physically stored on the drives?
>   > That is, once the drives are moved will the following:
>  >
>  > vgscan
>  > vgchange -a y
>  >
>  > ...simply find everything, creating the /dev/vg/home and /dev/vg/video nodes?
>
>  Essentially, yes. You may have to do pvscan first to update the cache.
>  But depending on your distro, all of this may be handled by the boot
>  scripts automatically.
>
>  Bolek
>
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Cool...just what I thought. Thanks for the reply.

As I said in the original post, I'm a little concerned about proper
cooling if I add a hard drive into the extra CD bay on my Dell 4600
backend.  Is anyone familiar with the Antec HD Cooler?:

http://www.antec.com/us/productDetails.php?ProdID=75011#

...looks interesting.  My backend is situated where I really don't
care if it adds a little fan noise.

Tom