Thursday, September 2, 2010

Buffer I/O error on device dm

error in dmesg
---------------
Buffer I/O error on device dm-19, logical block 106063909
lost page write due to I/O error on dm-19

# dmsetup ls
mpath2 (253, 9)
mpath1 (253, 8)
mpath21 (253, 7)
VolGroup00-LogVol07 (253, 6)
VolGroup00-LogVol06 (253, 2)
mpath9 (253, 16)
VolGroup00-LogVol04 (253, 5)
mpath8 (253, 15)
VolGroup01-LogVol02 (253, 19) <-- this is the VG that is problem
VolGroup00-LogVol03 (253, 1)
mpath7 (253, 14)
VolGroup01-LogVol01 (253, 18)
VolGroup00-LogVol02 (253, 4)
mpath6 (253, 13)
VolGroup00-LogVol01 (253, 3)
mpath5 (253, 12)
VolGroup00-LogVol00 (253, 0)
mpath4 (253, 11)
mpath10 (253, 17)
mpath3 (253, 10)

# lvdisplay -m /dev/VolGroup01/LogVol02
/dev/dm-17: read failed after 0 of 4096 at 0: Input/output error
Found duplicate PV S3KFxP4dblQ7a0ikQnRTgMQ3qNv8xMzP: using /dev/sdl not /dev/sdv
--- Logical volume ---
LV Name /dev/VolGroup01/LogVol02
VG Name VolGroup01
LV UUID LjCB1L-pxPn-JBEb-XflA-4mrM-xtw0-nZMkQ6
LV Write Access read/write
LV Status available
# open 1
LV Size 476.90 GB
Current LE 122087
Segments 8
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:19

--- Segments ---
Logical extent 0 to 17262:
Type linear
Physical volume /dev/dm-11
Physical extents 0 to 17262

Logical extent 17263 to 34525:
Type linear
Physical volume /dev/dm-12
Physical extents 0 to 17262

Logical extent 34526 to 51788:
Type linear
Physical volume /dev/dm-13
Physical extents 0 to 17262

Logical extent 51789 to 69051:
Type linear
Physical volume /dev/dm-14
Physical extents 0 to 17262

Logical extent 69052 to 86314:
Type linear
Physical volume /dev/dm-15
Physical extents 0 to 17262

Logical extent 86315 to 103577:
Type linear
Physical volume /dev/dm-16
Physical extents 0 to 17262

Logical extent 103578 to 120840:
Type linear
Physical volume /dev/sdl
Physical extents 0 to 17262

Logical extent 120841 to 122086:
Type linear
Physical volume /dev/dm-10
Physical extents 16017 to 17262

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