On 07/06/2017 04:43 AM, Volker wrote:
Hi all,
one of my lv has become completely unaccessible. Every read access
results in a buffer io error:
Buffer I/O error on dev dm-13, logical block 0, async page read
this goes for every block in the lv. A ddrescue failed on every single
block.
$ lvdisplay
--- Logical volume ---
LV Path /dev/vg0/lv-vm-tviewer
LV Name lv-vm-tviewer
VG Name vg0
LV UUID XdgHFs-RHVZ-9BAH-1ZSK-yiBX-qqf0-273CtT
LV Write Access read/write
LV Creation host, time host1, 2016-02-06 14:58:19 +0100
LV snapshot status INACTIVE destination for lv-vm-tviewer_vorigin
LV Status available
# open 0
LV Size 58.59 GiB
Current LE 15000
COW-table size 5.86 GiB
COW-table LE 1500
Snapshot chunk size 4.00 KiB
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:13
That looks like a snapshot volume that became invalid because it was filled to capacity. Such a snapshot is lost forever. It si your responsibility to monitor snapshot usage to make sure it does not run out of space. The base volume, lv-vm-tviewer_vorigin, should still have its original content.
--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.
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