[virt-tools-list] Virt-Manager did not allocate whole disk when creating the LVM volume

[Michael]

Quoting Cole Robinson <crobinso at redhat.com>:

> On 10/07/2014 02:09 PM, Michael wrote:
>> Hi,
>> some time ago I created a new LVM volume inside a LVM pool and did not
>> allocate the full volume size initially.
>>
>> Because of that Virt-Manager additionally created a snapshot for this
>> volume.
>>
>> How can I get rid of this snapshot? Can I just remove it with lvremove?
>> Or will there be some side effects?
>>
>> The volume data are:
>>
>> --- Logical volume ---
>>   LV Path                /dev/vg0/mine-mx0
>>   LV Name                mine-mx0
>>   VG Name                vg0
>>   LV UUID                Drydli-ecto-FGym-xwlM-8uMe-gDdp-xHskio
>>   LV Write Access        read/write
>>   LV snapshot status     active destination for mine-mx0_vorigin
>>   LV Status              available
>>   # open                 1
>>   LV Size                150.00 GiB
>>   Current LE             38400
>>   COW-table size         98.83 GiB
>>   COW-table LE           25300
>>   Allocated to snapshot  53.19%
>>   Snapshot chunk size    4.00 KiB
>>   Segments               2
>>   Allocation             inherit
>>   Read ahead sectors     auto
>>   - currently set to     256
>>   Block device           252:15
>
> I believe if you request a not-fully-allocated lvm volume, then libvirt asks
> lvm to create a 'thin volume'. But that's the extent that I know, so  
> maybe try
> googling 'lvm thin volume' for more info.

Thanks, I think that's going to lead me into the right direction.

Michael