Rename physical volume
I made a little mistake a few months ago
when I added a disk to my VG:
----- s n i p -----
celia:~# pvdisplay | egrep 'PV Name|Allocatable' PV Name /dev/md0 Allocatable yes (but full) PV Name /dev/hdc Allocatable yes (but full) PV Name /dev/sdd1 Allocatable yes (but full) PV Name /dev/md2 Allocatable yes (but full) PV Name /dev/md3 Allocatable yes ----- s n i p -----
What id like to do is move all data from sdd1
(372Gb) to the new md3 (just added - empty 465Gb)
and then remove sdd1 and create it as md1 and
move the data back.
But I'm afraid of holes in the FS (XFS)...
Also, hdc is just a 80Gb disk which I forgot
to remove when I added sdd1 (I had a 80Gb disk
laying around and not enough money) so I'd
like to remove it completely (move the physical
data to some other PV - md3 because of free
space on that).
Any advice in which procedure I should use
to accomplish this?
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Quoted 10 lines · Turbo Fredriksson
I made a little mistake a few months ago when I added a disk to my VG:
----- s n i p -----
----- s n i p -----What id like to do is move all data from sdd1 (372Gb) to the new md3 (just added - empty 465Gb) and then remove sdd1 and create it as md1 and move the data back.
Use pvmove. You should provide kernel and lvm versions to see if any experts here know of bugs or caveats.
Quoted 1 line
But I'm afraid of holes in the FS (XFS)...
Moving one LV at a time should keep the PEs contiguous. I think that is what you are talking about. XFS should work with non-contiguous PEs, but will lose performance since it is optimized for contiguous extents.
Quoted 2 lines
Any advice in which procedure I should use to accomplish this?
pvmove one LV at a time.
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