[DRBD-user] Problems with lvcreate on DRBD Volume

markus at marcap.de markus at marcap.de
Sat Oct 8 23:08:20 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Dear all,

I have a strange Problem on a two node cluster, with an DRBD volume.  
Each time I try to create a new logical volume I see this error:

c-r0212034:~# lvcreate -L 2G --name foo rep
   device-mapper: reload ioctl failed: Invalid argument
   Aborting. Failed to activate new LV to wipe the start of it.

I red a lot about this in the internet, but unfortunately it was not  
possible to fix it till yet.

Please find some helpful output below:
# pvcreate /dev/drbd0
   Physical volume "/dev/drbd0" successfully created
# vgcreate rep /dev/drbd0
   Volume group "rep" successfully created
# pvscan
   PV /dev/sda2    VG pve   lvm2 [930.82 GB / 836.00 MB free]
   PV /dev/drbd0   VG rep   lvm2 [699.98 GB / 699.98 GB free]
# pvs
   PV         VG   Fmt  Attr PSize   PFree
   /dev/dm-3  rep  lvm2 a-   699.98G 699.98G
   /dev/sda2  pve  lvm2 a-   930.82G 836.00M

LVM-Filter in lvm.conf: filter = ["a|sd.*|", "a|drbd.*|", "r|.*|"]

My drbd.conf:
global {
         usage-count no;
         # minor-count dialog-refresh disable-ip-verification
}

common {
         protocol C;

         handlers {
                 # fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
                 # split-brain "/usr/lib/drbd/notify-split-brain.sh root";
                 # out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";
                 # before-resync-target  
"/usr/lib/drbd/snapshot-resync-target-lvm.sh -p 15 -- -c 16k";
                 # after-resync-target  
/usr/lib/drbd/unsnapshot-resync-target-lvm.sh;
         }

         startup {
                 # wfc-timeout degr-wfc-timeout outdated-wfc-timeout  
wait-after-sb
         }

         disk {
                 # on-io-error fencing use-bmbv no-disk-barrier no-disk-flushes
                 # no-disk-drain no-md-flushes max-bio-bvecs
         }

         net {
                 # sndbuf-size rcvbuf-size timeout connect-int  
ping-int ping-timeout max-buffers
                 # max-epoch-size ko-count allow-two-primaries  
cram-hmac-alg shared-secret
                 # after-sb-0pri after-sb-1pri after-sb-2pri  
data-integrity-alg no-tcp-cork
         }

         syncer {
                 # rate after al-extents use-rle cpu-mask verify-alg csums-alg
                 rate 1000M;
         }

}

resource r0 {
         protocol C;
         startup {
                 wfc-timeout  15;     # wfc-timeout can be dangerous  
(http://forum.proxmox.com/threads/3465-Is-it-safe-to-use-wfc-timeout-in-DRBD-configuration)
                 degr-wfc-timeout 60;
                 become-primary-on both;
         }
         net {
                 cram-hmac-alg sha1;
                 shared-secret "my-secret";
                 allow-two-primaries;
                 after-sb-0pri discard-zero-changes;
                 after-sb-1pri discard-secondary;
                 after-sb-2pri disconnect;
         }
         on c-r0212034 {
                 device /dev/drbd0;
                 disk /dev/pve/r0;
                 address 10.8.11.1:7788;
                 meta-disk internal;
         }
         on c-r0212035 {
                 device /dev/drbd0;
                 disk /dev/pve/r0;
                 address 10.8.11.2:7788;
                 meta-disk internal;
         }

}

Syslog:
Oct  8 23:06:30 c-r0212034 kernel: device-mapper: table: 253:4:  
linear: dm-linear: Device lookup failed
Oct  8 23:06:30 c-r0212034 kernel: device-mapper: ioctl: error adding  
target to table

# lvcreate -L 2G -n foo rep -vvvv
#lvmcmdline.c:914         Processing: lvcreate -L 2G -n foo rep -vvvv
#lvmcmdline.c:917         O_DIRECT will be used
#config/config.c:950       Setting global/locking_type to 1
#locking/locking.c:223       File-based locking selected.
#config/config.c:927       Setting global/locking_dir to /var/lock/lvm
#activate/activate.c:362       Getting target version for linear
#ioctl/libdm-iface.c:1606         dm version   OF   [16384]
#ioctl/libdm-iface.c:1606         dm versions   OF   [16384]
#activate/activate.c:362       Getting target version for striped
#ioctl/libdm-iface.c:1606         dm versions   OF   [16384]
#lvcreate.c:302     Setting logging type to disk
#config/config.c:950       Setting activation/mirror_region_size to 512
#lvcreate.c:895     Finding volume group "rep"
#locking/file_locking.c:164       Locking /var/lock/lvm/V_rep WB
#filters/filter-regex.c:172         /dev/ram0: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop0: Skipping (regex)
#device/dev-io.c:439         Opened /dev/sda RO
#device/dev-io.c:260       /dev/sda: size is 1953124352 sectors
#device/dev-io.c:340         WARNING: /dev/sda already opened read-only
#device/dev-io.c:515         /dev/sda: Immediate close attempt while  
still referenced
#device/dev-io.c:485         Closed /dev/sda
#device/dev-io.c:439         Opened /dev/sda RW O_DIRECT
#device/dev-io.c:134         /dev/sda: block size is 4096 bytes
#filters/filter.c:124         /dev/sda: Skipping: Partition table  
signature found
#device/dev-io.c:485         Closed /dev/sda
#device/dev-io.c:439         Opened /dev/drbd0 RW O_DIRECT
#device/dev-io.c:134         /dev/drbd0: block size is 4096 bytes
#label/label.c:160       /dev/drbd0: lvm2 label detected
#cache/lvmcache.c:965         lvmcache: /dev/drbd0: now in VG  
#orphans_lvm2 (#orphans_lvm2)
#format_text/format-text.c:1095         /dev/drbd0: Found metadata at  
8704 size 632 (in area at 4096 size 192512) for rep  
(JwEqO3-epv4-evmI-hlcg-owfl-pjrT-foel0n)
#cache/lvmcache.c:965         lvmcache: /dev/drbd0: now in VG rep with 1 mdas
#cache/lvmcache.c:752         lvmcache: /dev/drbd0: setting rep VGID  
to JwEqO3epv4evmIhlcgowflpjrTfoel0n
#cache/lvmcache.c:1002         lvmcache: /dev/drbd0: VG rep: Set  
creation host to c-r0212034.
#filters/filter-regex.c:172         /dev/dm-0: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram1: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop1: Skipping (regex)
#device/dev-io.c:439         Opened /dev/sda1 RW O_DIRECT
#device/dev-io.c:134         /dev/sda1: block size is 4096 bytes
#label/label.c:184       /dev/sda1: No label detected
#label/label.c:287         <backtrace>
#device/dev-io.c:485         Closed /dev/sda1
#filters/filter-regex.c:172         /dev/root: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram2: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop2: Skipping (regex)
#device/dev-io.c:439         Opened /dev/sda2 RW O_DIRECT
#device/dev-io.c:134         /dev/sda2: block size is 4096 bytes
#label/label.c:160       /dev/sda2: lvm2 label detected
#cache/lvmcache.c:965         lvmcache: /dev/sda2: now in VG  
#orphans_lvm2 (#orphans_lvm2)
#format_text/format-text.c:1095         /dev/sda2: Found metadata at  
18432 size 1590 (in area at 4096 size 192512) for pve  
(KLwqKx-bXU4-4cZO-ZtxL-tO0g-8Cop-Ex5ubf)
#cache/lvmcache.c:965         lvmcache: /dev/sda2: now in VG pve with 1 mdas
#cache/lvmcache.c:752         lvmcache: /dev/sda2: setting pve VGID to  
KLwqKxbXU44cZOZtxLtO0g8CopEx5ubf
#cache/lvmcache.c:1002         lvmcache: /dev/sda2: VG pve: Set  
creation host to c-r0212034.
#device/dev-io.c:485         Closed /dev/sda2
#filters/filter-regex.c:172         /dev/dm-2: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram3: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop3: Skipping (regex)
#device/dev-io.c:439         Opened /dev/dm-3 RW O_DIRECT
#device/dev-io.c:134         /dev/dm-3: block size is 4096 bytes
#label/label.c:160       /dev/dm-3: lvm2 label detected
#cache/lvmcache.c:1133       Duplicate PV  
ayC0bjchgYw0zf2ye3nTDIYbn3qjLwge on /dev/drbd0 - using dm /dev/dm-3
#cache/lvmcache.c:965         lvmcache: /dev/dm-3: now in VG  
#orphans_lvm2 (#orphans_lvm2) with 1 mdas
#format_text/format-text.c:1095         /dev/dm-3: Found metadata at  
8704 size 632 (in area at 4096 size 192512) for rep  
(JwEqO3-epv4-evmI-hlcg-owfl-pjrT-foel0n)
#cache/lvmcache.c:965         lvmcache: /dev/dm-3: now in VG rep with 1 mdas
#cache/lvmcache.c:752         lvmcache: /dev/dm-3: setting rep VGID to  
JwEqO3epv4evmIhlcgowflpjrTfoel0n
#cache/lvmcache.c:1002         lvmcache: /dev/dm-3: VG rep: Set  
creation host to c-r0212034.
#filters/filter-regex.c:172         /dev/ram4: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop4: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram5: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop5: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram6: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop6: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram7: Skipping (regex)
#filters/filter-regex.c:172         /dev/loop7: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram8: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram9: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram10: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram11: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram12: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram13: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram14: Skipping (regex)
#filters/filter-regex.c:172         /dev/ram15: Skipping (regex)
#label/label.c:270         Using cached label for /dev/dm-3
#label/label.c:270         Using cached label for /dev/dm-3
#format_text/format-text.c:476         Read rep metadata (5) from  
/dev/dm-3 at 8704 size 632
#metadata/pv_manip.c:272         /dev/dm-3 0:      0 179194: NULL(0:0)
#format_text/archiver.c:123     Archiving volume group "rep" metadata  
(seqno 5).
#metadata/lv_manip.c:1822     Creating logical volume foo
#metadata/pv_map.c:47         Allowing allocation on /dev/dm-3 start  
PE 0 length 179194
#metadata/pv_manip.c:272         /dev/dm-3 0:      0    512: foo(0:0)
#metadata/pv_manip.c:272         /dev/dm-3 1:    512 178682: NULL(0:0)
#format_text/format-text.c:566         Writing rep metadata to  
/dev/dm-3 at 9728 len 881
#format_text/format-text.c:662         Pre-Committing rep metadata (6)  
to /dev/dm-3 header at 4096
#format_text/archiver.c:363     Creating volume group backup  
"/etc/lvm/backup/rep" (seqno 6).
#format_text/format-text.c:852         Writing rep metadata to  
/etc/lvm/backup/.lvm_c-r0212034_8388_1357441257
#format_text/format-text.c:896         Committing rep metadata (6)
#format_text/format-text.c:897         Renaming  
/etc/lvm/backup/rep.tmp to /etc/lvm/backup/rep
#format_text/format-text.c:662         Committing rep metadata (6) to  
/dev/dm-3 header at 4096
#locking/file_locking.c:244       Locking LV  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH (R)
#metadata/metadata.c:1858       Finding volume group for uuid  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH
#label/label.c:270         Using cached label for /dev/dm-3
#label/label.c:270         Using cached label for /dev/dm-3
#format_text/format-text.c:476         Read rep metadata (6) from  
/dev/dm-3 at 9728 size 881
#metadata/metadata.c:1864     Found volume group "rep"
#activate/activate.c:447         Getting device info for rep-foo
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
NF   [16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH NF    
[16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo  NF   [16384]
#mm/memlock.c:99       Locking memory
#mm/memlock.c:130         memlock_count inc to 1
#config/config.c:927       Setting activation/missing_stripe_filler to  
/dev/ioerror
#activate/dev_manager.c:632         Getting device info for rep-foo  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH OF    
[16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo  OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo-real  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real OF    
[16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo-real  OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo-cow  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow OF    
[16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo-cow  OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo_mlog  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog OF   
  [16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo_mlog  OF   [16384]
#activate/dev_manager.c:823         Checking kernel supports striped  
segment type for foo
#ioctl/libdm-iface.c:1606         dm deps   (253:3) OF   [16384]
#libdm-deptree.c:1187     Creating rep-foo
#ioctl/libdm-iface.c:1606         dm create rep-foo  
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
NF   [16384]
#libdm-common.c:607         rep-foo: Stacking NODE_ADD (253,4) 0:6 0660
#libdm-deptree.c:1463     Loading rep-foo table
#libdm-deptree.c:1413         Adding target: 0 4194304 linear 253:3 384
#ioctl/libdm-iface.c:1606         dm table   (253:4) OF   [16384]
#ioctl/libdm-iface.c:1606         dm reload   (253:4) NF   [16384]
#ioctl/libdm-iface.c:1623   device-mapper: reload ioctl failed:  
Invalid argument
#libdm-deptree.c:1538         <backtrace>
#activate/dev_manager.c:1089         <backtrace>
#activate/dev_manager.c:1116         <backtrace>
#activate/activate.c:579         <backtrace>
#mm/memlock.c:118       Unlocking memory
#mm/memlock.c:137         memlock_count dec to 0
#libdm-common.c:312         Created /dev/mapper/rep-foo
#lvcreate.c:803   Aborting. Failed to activate new LV to wipe the start of it.
#locking/file_locking.c:239       Locking LV  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH (NL)
#metadata/metadata.c:1858       Finding volume group for uuid  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH
#label/label.c:270         Using cached label for /dev/dm-3
#label/label.c:270         Using cached label for /dev/dm-3
#format_text/format-text.c:476         Read rep metadata (6) from  
/dev/dm-3 at 9728 size 881
#metadata/metadata.c:1864     Found volume group "rep"
#activate/activate.c:447         Getting device info for rep-foo
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
OF   [16384]
#mm/memlock.c:99       Locking memory
#mm/memlock.c:130         memlock_count inc to 1
#activate/dev_manager.c:632         Getting device info for rep-foo  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm deps   (253:4) OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo-real  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real OF    
[16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-real  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo-real  OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo-cow  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow OF    
[16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-cow  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo-cow  OF   [16384]
#activate/dev_manager.c:632         Getting device info for  
rep-foo_mlog  
[LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog]
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog OF   
  [16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH-_mlog  
OF   [16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo_mlog  OF   [16384]
#ioctl/libdm-iface.c:1606         dm info   (253:4) OF   [16384]
#libdm-deptree.c:830     Removing rep-foo (253:4)
#ioctl/libdm-iface.c:1606         dm remove   (253:4) NF   [16384]
#libdm-common.c:623         rep-foo: Stacking NODE_DEL (replaces other  
stacked ops)
#mm/memlock.c:118       Unlocking memory
#mm/memlock.c:137         memlock_count dec to 0
#libdm-common.c:374         Removed /dev/mapper/rep-foo
#locking/file_locking.c:234       Unlocking LV  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH
#metadata/metadata.c:1858       Finding volume group for uuid  
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH
#label/label.c:270         Using cached label for /dev/dm-3
#label/label.c:270         Using cached label for /dev/dm-3
#format_text/format-text.c:476         Read rep metadata (6) from  
/dev/dm-3 at 9728 size 881
#metadata/metadata.c:1864     Found volume group "rep"
#activate/activate.c:447         Getting device info for rep-foo
#ioctl/libdm-iface.c:1606         dm info   
LVM-JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH  
NF   [16384]
#ioctl/libdm-iface.c:1606         dm info   
JwEqO3epv4evmIhlcgowflpjrTfoel0nRC7uHcquGNP3nLrV0xKm4ugMvFEVs1PH NF    
[16384]
#ioctl/libdm-iface.c:1606         dm info rep-foo  NF   [16384]
#metadata/pv_manip.c:272         /dev/dm-3 0:      0    512: NULL(0:0)
#metadata/pv_manip.c:272         /dev/dm-3 1:    512 178682: NULL(0:0)
#format_text/format-text.c:566         Writing rep metadata to  
/dev/dm-3 at 10752 len 632
#format_text/format-text.c:662         Pre-Committing rep metadata (7)  
to /dev/dm-3 header at 4096
#format_text/archiver.c:363     Creating volume group backup  
"/etc/lvm/backup/rep" (seqno 7).
#format_text/format-text.c:852         Writing rep metadata to  
/etc/lvm/backup/.lvm_c-r0212034_8388_227330571
#format_text/format-text.c:896         Committing rep metadata (7)
#format_text/format-text.c:897         Renaming  
/etc/lvm/backup/rep.tmp to /etc/lvm/backup/rep
#format_text/format-text.c:662         Committing rep metadata (7) to  
/dev/dm-3 header at 4096
#locking/file_locking.c:59       Unlocking /var/lock/lvm/V_rep
#device/dev-io.c:485         Closed /dev/drbd0
#device/dev-io.c:485         Closed /dev/dm-3

It looks like there is a problem with the LVM filter?? I already tried  
a lot of different filters, but it didnt helped. I have the same  
configuration perfectly running on an other cluster.

Home somebody of can help me! Thanks a lot...

Best regards,
Markus




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