>> LVM has bitten me more than once in the past and I will not use it
>> again. In both situations it spanned more than one disk and one of the
>> disks failed - leaving you with unrecoverable data.
> I don't think I've ever used it like that, and probably wouldn't. At
> least not unless the underlying devices were RAID1 or similar.
The only times I put several PVs in a VG is when moving data between
disks:
- pvcreate /dev/sd<new>
- vgextend <myVG> /dev/sd<new>
- pvmove /dev/sd<old>
- vgreduce <myVG> /dev/sd<old>
But indeed, this creates a temporary mirror and is hence safe w.r.t
disk failure.
Stefan
