[linux-lvm] pvmove broken?

[bert hubert]

In the course of writing the lvm-manager, I was trying pvmove but it appears
horribly broken, alternately refusing to work of messing things up. I once
had to recreate all my physical volumes with -ff to get things working
again.

I tried this:

# vgcreate test /dev/hda3 /dev/hda4
vgcreate -- INFO: using default physical extent size 4 MB
vgcreate -- INFO: maximum logical volume size is 255.99 Gigabyte
vgcreate -- doing automatic backup of volume group "test"
vgcreate -- volume group "test" successfully created and activated

# lvcreate -n testvol -L 20M test
lvcreate -- doing automatic backup of "test"
lvcreate -- logical volume "/dev/test/testvol" successfully created

# lvchange -a n /dev/test/testvol
lvchange -- logical volume "/dev/test/testvol" changed
lvchange -- doing automatic backup of volume group "test"

# vgchange -a n test
vgchange -- volume group "test" successfully deactivated

# pvmove /dev/hda3
pvmove -- moving physical extents in inactive volume group "test"
pvmove -- WARNING: moving of active logical volumes may cause data loss!
pvmove -- do you want to continue? [y/n] y
pvmove -- ERROR "pv_move_pe(): PE lock" pv_move_pe

pvmove -- ERROR "pv_move_pe(): PE lock" moving physical extents

# pvmove /dev/hda4
pvmove -- no logical volumes on empty source physical volume "/dev/hda4"
 
##############

Some data which may be relevant:

# pvscan -v
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- walking through all physical volumes found
pvscan -- inactive PV "/dev/hda3" of VG "test" [52 MB / 32 MB free]
pvscan -- inactive PV "/dev/hda4" of VG "test" [52 MB / 52 MB free]
pvscan -- inactive PV "/dev/hdb2"  is in no VG  [133.35 MB]
pvscan -- total: 3 [243.17 MB] / in use: 2 [109.82 MB] / in no VG: 1 [133.35
MB]

# lvdisplay -v /dev/test/testvol -D
--- Logical volume ---
LV Name               /dev/test/testvol
VG Name               test
LV Write Access       read/write
LV Status             NOT available
LV #                  1
# open                0
LV Size               20 MB
Current LE            5
Allocated LE          5
Allocation            next free
Read ahead sectors    120
Block device          58:0

   --- Distribution of logical volume on 1 physical volume  ---
   PV Name                  PE on PV     reads      writes
   /dev/hda3                5            0          0        

   --- logical volume i/o statistic ---
   0 reads  0 writes

   --- Logical extents ---
   LE    PV                        PE     reads      writes
   00000 /dev/hda3                 00000  0          0        
   00001 /dev/hda3                 00001  0          0        
   00002 /dev/hda3                 00002  0          0        
   00003 /dev/hda3                 00003  0          0        
   00004 /dev/hda3                 00004  0          0        



# uname -a
Linux debian 2.3.99-pre3 #2 Mon Mar 27 17:48:19 CEST 2000 i686 unknown

Logical Volume Manager 0.8final by Heinz Mauelshagen  21/02/2000 (IOP 6)


Regards,

bert hubert


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