| 2015-08-04 07:07:22 |
B. |
description |
lvm2 version 2.02.98-6ubuntu2
After doing a lvextend of a LVM Thin Pool, I had a corruption all sub
LVM Thin Volumes and lost all of them. Then tried to dump/repair the
tmeta and end up with empty thin volumes (no more filesystem signature on them).
To sum up
The thin_pool was 2T and I tried to increased it to 3T...
As fare as I know, none of the partitions were full but I increased the main
thin pool as it was close to the sum of all sub thin volumes.
I assume that using LVM Thin is still not stable on 14.04 LTS right?
I guess that lvm2 2.02.98 does not properly handle the metadata resize
of a thin pool right? (maybe add a warning somewhere in doc?)
I managed to recover some files from the raw thin_pool (tdata/tpool) with scalapel
but that is it.
Do you known any other tools to recovery lvm thin volumes or partition/data on it?
Errors
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 2199023190016: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 2199023247360: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 0: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 4096: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 805306302464: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 805306359808: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 0: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 4096: Input/output error
lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
thin_archive mainvg Vwi-aotz- 500.00g thin_pool 94.65
thin_rsnapshot mainvg Vwi-aotz- 1.50t thin_pool 94.01
thin_pool mainvg twi-a-tz- 3.00t 71.65
lvresize -L 2T /dev/mapper/mainvg-thin_rsnapshot
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 1649267376128: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 1649267433472: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 536870846464: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 536870903808: Input/output error
Extending logical volume thin_rsnapshot to 2.00 TiB
Logical volume thin_rsnapshot successfully resized |
lvm2 version 2.02.98-6ubuntu2
After doing a lvresize of a LVM Thin Pool, I had a corruption all sub
LVM Thin Volumes and lost all of them. Then tried to dump/repair the
tmeta and end up with empty thin volumes (no more filesystem signature on them).
To sum up
The thin_pool was 2T and I tried to increased it to 3T...
As fare as I know, none of the partitions were full but I increased the main
thin pool as it was close to the sum of all sub thin volumes.
I assume that using LVM Thin is still not stable on 14.04 LTS right?
I guess that lvm2 2.02.98 does not properly handle the metadata resize
of a thin pool right? (maybe add a warning somewhere in doc?)
Maybe related to
http://comments.gmane.org/gmane.linux.kernel.device-mapper.devel/19190
https://www.redhat.com/archives/lvm-devel/2013-June/msg00371.html
I managed to recover some files from the raw thin_pool (tdata/tpool) with scalapel
but that is it.
Do you known any other tools to recovery lvm thin volumes or partition/data on it?
Errors
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
attempt to access beyond end of device
dm-6: rw=0, want=7753528, limit=262144
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 2199023190016: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 2199023247360: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 0: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 4096: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 805306302464: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 805306359808: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 0: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 4096: Input/output error
lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
thin_archive mainvg Vwi-aotz- 500.00g thin_pool 94.65
thin_rsnapshot mainvg Vwi-aotz- 1.50t thin_pool 94.01
thin_pool mainvg twi-a-tz- 3.00t 71.65
lvresize -L 2T /dev/mapper/mainvg-thin_rsnapshot
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 1649267376128: Input/output error
/dev/mainvg/thin_rsnapshot: read failed after 0 of 4096 at 1649267433472: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 536870846464: Input/output error
/dev/mainvg/thin_archive: read failed after 0 of 4096 at 536870903808: Input/output error
Extending logical volume thin_rsnapshot to 2.00 TiB
Logical volume thin_rsnapshot successfully resized |
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