Recently I tried to delete 1TB disk created on top ~3TB LUN from ovirtengine.
Disk is preallocated and I backuped data to other disk so I could recreate it once again as thin volume. I couldn't remove this disk when it was attached to a VM. But once I detached it I could remove it permanently. The thing is it only disappeared from ovirtengine GUI.
I've got 4 hosts with FC HBA attached to storage array and all of them are saying that this 1TB disk which should be gone is opened by all hosts simultaneously.
[root@wrops1 BLUE ~]# lvdisplay -m /dev/e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8
--- Logical volume ---
LV Path /dev/e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8
LV Name ee53af81-820d-4916-b766-5236ca99daf8
VG Name e69d1c16-36d1-4375-aaee-69f5a5ce1616
LV UUID sBdBRk-tNyZ-Rval-F4lw-ka6X-wOe8-AQenTb
LV Write Access read/write
LV Creation host, time wrops1.blue, 2015-07-31 10:40:57 +0200
LV Status available
# open 1
LV Size 1.00 TiB
Current LE 8192
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:29
--- Segments ---
Logical extents 0 to 8191:
Type linear
Physical volume /dev/mapper/3600000e00d0000000024057200000000
Physical extents 8145 to 16336
Deactivating LV doesn't work:
[root@wrops1 BLUE ~]# lvchange -an /dev/e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8
Logical volume e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8 is used by another device.
Removing from hypervisor doesn't work either.
[root@wrops1 BLUE ~]# lvremove --force /dev/e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8
Logical volume e69d1c16-36d1-4375-aaee-69f5a5ce1616/ee53af81-820d-4916-b766-5236ca99daf8 is used by another device.
I tried and rebooted one host and as soon as it booted the volume became opened once again. Lsof on all hosts doesn't give anything meaningful regarding this LV. As opposed to other LV which are used by qemu-kvm.
Has anyone encountered similar problem? How can I remove this LV?
Regards
Krzysztof Dajka