Re: Moving to LVM
On Tue, Mar 17, 2009 at 08:18:28AM +0100, Johannes Wiedersich wrote:
> Boyd Stephen Smith Jr. wrote:
> > In <[🔎] jwvwsap9oo1.fsf-monnier+gmane.linux.debian.user@gnu.org>, Stefan Monnier
> > wrote:
> >>> What happens if, for whatever reason, just one of the disks is
> >>> available?
> >> You lose it all (pretty much). For that reason, it's not recommended,
> >> unless you have backups elsewhere.
> >
> > You don't really lose it all. If the disk is just unavailable, the VG is
> > just unavailable. Bringing both disks on-line simultaneously will restore
> > your access to the VG and all its LVs.
> >
> > If one disk dies or gets corrupted, you can still recover some of the data
> > on the other disk. LVs that reside only on the good disk(s) will be
> > completely safe. LVs that reside only on the bad disk(s) will be entirely
> > lost.
>
> OP explicitly asked about creating _one_ LV. He also claimed that there
> is no third disk available for backup or data recovery.
>
Lose one, you've lost everything. [I lost a 2TB array that way].
USB not really reliable enough. [Lost a 750G disk when it fell 40cm to
a carpeted floor too :( ]
AndyC
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