On 06.07.2017 15:35, Robert Nichols wrote:
> 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.
>
That's it. Thanks for the information.
How would I remove the only the snapshot but not the base volume? Will
$ lvremove /dev/vg0/lv-vm-tviewer
leave the base volume untouched?
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