I'm getting this message every few hours since installation of a
SLES10SP2 system:
kernel: device-mapper: table: 253:4: mirror: Device lookup failure
kernel: device-mapper: ioctl: error adding target to table
I've looked through the device mapper stuff and I can't find any reason
for this system to think it's got a minor at 4, or a mirror. What might
be causing these messages, and what can I do beside the obvious LVM and
Device Mapper commands to troubleshoot? Or maybe the answer is staring
me in the face and I am missing it.
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/dasda1 373M 111M 244M 32% /
udev 121M 92K 121M 1% /dev
/dev/mapper/system--vg-opt--lv
372M 37M 317M 11% /opt
/dev/mapper/system--vg-tmp--lv
372M 17M 337M 5% /tmp
/dev/mapper/system--vg-usr--lv
2.0G 807M 1.1G 43% /usr
/dev/mapper/system--vg-var--lv
496M 117M 354M 25% /var
zlinuxhdxgwdev1:/dev/mapper # ls -l
total 0
lrwxrwxrwx 1 root root 16 Feb 19 10:30 control -> ../device-mapper
brw------- 1 root root 253, 0 Feb 19 10:30 system--vg-opt--lv
brw------- 1 root root 253, 1 Feb 19 10:30 system--vg-tmp--lv
brw------- 1 root root 253, 2 Feb 19 10:31 system--vg-usr--lv
brw------- 1 root root 253, 3 Feb 19 10:31 system--vg-var-lv
zlinuxhdxgwdev1:/dev/disk/by-id # vgldisplay
--- Volume group ---
VG Name system-vg
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 4
Open LV 4
Max PV 0
Cur PV 2
Act PV 2
VG Size 4.20 GB
PE Size 4.00 MB
Total PE 1076
Alloc PE / Size 832 / 3.25 GB
Free PE / Size 244 / 976.00 MB
VG UUID uatqaW-r3JL-zUn7-7hxw-gLIu-2WnW-uOYl5G
zlinuxhdxgwdev1:/dev/disk/by-id # pvscan
PV /dev/dasda2 VG system-vg lvm2 [1.91 GB / 976.00 MB free]
PV /dev/dasdb1 VG system-vg lvm2 [2.29 GB / 0 free]
Total: 2 [4.20 GB] / in use: 2 [4.20 GB] / in no VG: 0 [0 ]
zlinuxhdxgwdev1:/dev/disk/by-id # lvdisplay
--- Logical volume ---
LV Name /dev/system-vg/opt-lv
VG Name system-vg
LV UUID pF6IWB-qBVD-0KIc-tFJR-YVsb-WcC6-coKce8
LV Write Access read/write
LV Status available
# open 1
LV Size 384.00 MB
Current LE 96
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0
--- Logical volume ---
LV Name /dev/system-vg/tmp-lv
VG Name system-vg
LV UUID FhVfHT-lbda-9ZNp-Dyks-uXWI-0QNA-QUBFQq
LV Write Access read/write
LV Status available
# open 1
LV Size 384.00 MB
Current LE 96
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1
--- Logical volume ---
LV Name /dev/system-vg/usr-lv
VG Name system-vg
LV UUID 72dCIX-C0LC-Vkps-CwiD-oKLn-rNzq-1Q6m6i
LV Write Access read/write
LV Status available
# open 1
LV Size 2.00 GB
Current LE 512
Segments 2
Allocation inherit
Read ahead sectors 0
Block device 253:2
--- Logical volume ---
LV Name /dev/system-vg/var-lv
VG Name system-vg
LV UUID eBnq2p-L1Py-14wv-Y4Uq-mzJ3-CmXU-BF2ypb
LV Write Access read/write
LV Status available
# open 1
LV Size 512.00 MB
Current LE 128
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:3
zlinuxhdxgwdev1:/var/log # dmsetup info -c
Name Maj Min Stat Open Targ Event UUID
system--vg-opt--lv 253 0 L--w 1 1 0
LVM-uatqaWr3JLzUn77hxwgLIu2WnWuOYl5GpF6IWBqBVD0KIctFJRYVsbWcC6coKce8
system--vg-tmp--lv 253 1 L--w 1 1 0
LVM-uatqaWr3JLzUn77hxwgLIu2WnWuOYl5GFhVfHTlbda9ZNpDyksuXWI0QNAQUBFQq
system--vg-var--lv 253 3 L--w 1 1 0
LVM-uatqaWr3JLzUn77hxwgLIu2WnWuOYl5GeBnq2pL1Py14wvY4UqmzJ3CmXUBF2ypb
system--vg-usr--lv 253 2 L--w 1 2 0
LVM-uatqaWr3JLzUn77hxwgLIu2WnWuOYl5G72dCIXC0LCVkpsCwiDoKLnrNzq1Q6m6i
zlinuxhdxgwdev1:/dev/mapper # dmsetup table
system--vg-opt--lv: 0 786432 linear 94:5 384
system--vg-tmp--lv: 0 786432 linear 94:2 384
system--vg-var--lv: 0 1048576 linear 94:2 967040
system--vg-usr--lv: 0 4014080 linear 94:5 786816
system--vg-usr--lv: 4014080 180224 linear 94:2 786816
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