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[dm-devel] device-mapper errors during pvmove



Hi

I am trying to remove an old physical disc from my logical volume.

I have had earlier problems, as discussed in recent days on the lvm
mailing list, but it is now suggested that I post here.

The LV has sufficient free PEs on it, but pvmove is not working because
of device-mapper errors.

I have added a temporary usb external hard drive as it appears that
pvmove needs to create a mirror lv temporarily. I do not want to use
this drive in this volgroup long-term.

# pvscan
  PV /dev/sdb2   VG VolGroup00   lvm2 [27.75 GB / 960.00 MB free]
  PV /dev/sda2   VG VolGroup00   lvm2 [314.97 GB / 30.84 GB free]
  PV /dev/sdd3   VG VolGroup00   lvm2 [52.50 GB / 52.50 GB free]
  Total: 3 [395.22 GB] / in use: 3 [395.22 GB] / in no VG: 0 [0   ]

I am posting here because of the slightly cryptic errors apparently
being generated by device-mapper. The second error is almost certainly a
consequence of the first, but the first one has left me stumped.

Thanks for your help

Nick

# pvmove -vv /dev/sdb2 /dev/sda2
      Setting global/locking_type to 1
      File-based locking selected.
      Setting global/locking_dir to /var/lock/lvm
      Getting target version for mirror
      Getting target version for mirror
      Getting driver version
      /dev/sdb2: lvm2 label detected
      /dev/ram0: No label detected
      /dev/dm-0: No label detected
      /dev/ram1: No label detected
      /dev/sda1: No label detected
      /dev/dm-1: No label detected
      /dev/ram2: No label detected
      /dev/sda2: lvm2 label detected
      /dev/ram3: No label detected
      /dev/ram4: No label detected
      /dev/ram5: No label detected
      /dev/ram6: No label detected
      /dev/ram7: No label detected
      /dev/ram8: No label detected
      /dev/ram9: No label detected
      /dev/ram10: No label detected
      /dev/ram11: No label detected
      /dev/ram12: No label detected
      /dev/ram13: No label detected
      /dev/ram14: No label detected
      /dev/ram15: No label detected
      /dev/sdb1: No label detected
      /dev/sdd1: No label detected
      /dev/sdd2: No label detected
      /dev/sdd3: lvm2 label detected
    Finding volume group "VolGroup00"
      Locking /var/lock/lvm/V_VolGroup00 WB
      /dev/sdb2: lvm2 label detected
      /dev/sda2: lvm2 label detected
      /dev/sdd3: lvm2 label detected
    Archiving volume group "VolGroup00" metadata (seqno 37).
      Expiring archive /etc/lvm/archive/VolGroup00_00024.vg
    Creating logical volume pvmove0
      Inserting layer pvmove0 for segments of LogVol00 on /dev/sdb2
      Inserting /dev/sdb2:0-856 of VolGroup00/LogVol00
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Inserting /dev/sdb2:887-887 of VolGroup00/LogVol00
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
    Moving 858 extents of logical volume VolGroup00/LogVol00
      Inserting layer pvmove0 for segments of LogVol01 on /dev/sdb2
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E (R)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
    Found volume group "VolGroup00"
    Updating volume group metadata
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E (W)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
      /dev/sdb2: lvm2 label detected
      /dev/sda2: lvm2 label detected
      /dev/sdd3: lvm2 label detected
    Found volume group "VolGroup00"
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
    Found volume group "VolGroup00"
      /dev/sdb2: read_ahead is 256 sectors
      Locking memory
    Suspending VolGroup00-LogVol00 (253:0) with device flush
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC (R)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
    Found volume group "VolGroup00"
      Setting activation/mirror_region_size to 512
    Creating VolGroup00-pvmove0
    Loading VolGroup00-pvmove0 table
 **********************************************************************
  device-mapper: reload ioctl failed: No such device or address
  Temporary pvmove mirror activation failed.
      Removing layer pvmove0 for segments of LogVol00
      Remove LogVol00:0[0] from the top of LV pvmove0:0
      LogVol00:0 is no longer a user of pvmove0
      Remove LogVol00:857[0] from the top of LV pvmove0:857
      LogVol00:857 is no longer a user of pvmove0
      Removing layer pvmove0 for segments of LogVol01
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E (W)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
      /dev/sdb2: lvm2 label detected
      /dev/sda2: lvm2 label detected
      /dev/sdd3: lvm2 label detected
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
    Found volume group "VolGroup00"
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
    Found volume group "VolGroup00"
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC (W)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
      Stack LogVol00:0[0] on LV pvmove0:0
      Adding LogVol00:0 as an user of pvmove0
      Stack LogVol00:857[0] on LV pvmove0:857
      Adding LogVol00:857 as an user of pvmove0
    Found volume group "VolGroup00"
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
    Found volume group "VolGroup00"
    Suspending VolGroup00-pvmove0 (253:2) with device flush
      Unlocking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
    Found volume group "VolGroup00"
    Resuming VolGroup00-pvmove0 (253:2)
**********************************************************************  
device-mapper: resume ioctl failed: Invalid argument
  Unable to resume VolGroup00-pvmove0 (253:2)
      Unlocking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgLPxYrNE62mL8uhMs0OvZNIEWM6GlBD4E
    Found volume group "VolGroup00"
      Getting target version for linear
      Getting target version for striped
    Loading VolGroup00-LogVol00 table
    Resuming VolGroup00-LogVol00 (253:0)
      Unlocking memory
      Removing /dev/VolGroup00/LogVol00
      Linking /dev/VolGroup00/LogVol00
-> /dev/mapper/VolGroup00-LogVol00
      Locking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC (NL)
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
    Found volume group "VolGroup00"
      Locking memory
    Removing VolGroup00-pvmove0 (253:2)
      Unlocking memory
      Unlocking LV
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
      Finding volume group for uuid
EdAJKPEfRrbzqXIS8XJAyjzthn0vqAOgo3NFX2qrFUu5HyCI5r7p0sFe2tWrcSHC
    Found volume group "VolGroup00"
    Removing temporary pvmove LV
    Writing out final volume group after pvmove
    Creating volume group backup "/etc/lvm/backup/VolGroup00" (seqno
40).
    Creating volume group backup "/etc/lvm/backup/VolGroup00" (seqno
40).
      Unlocking /var/lock/lvm/V_VolGroup00



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