[mythtv-users] Moving drives containing LVM2 volumes, change of partition device nodes
Tom Dexter
digitalaudiorock at gmail.com
Sun Mar 30 23:26:43 UTC 2008
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
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