I run virsh list --all command and output is below:

root@compute06:~# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     instance-000012f9              shut off
 -     instance-000013b6              shut off
 -     instance-000016fb              shut off
 -     instance-0000190a              shut off
 -     instance-00001a8a              shut off
 -     instance-00001e05              shut off
 -     instance-0000202a              shut off
 -     instance-00002135              shut off
 -     instance-00002141              shut off
 -     instance-000021b6              shut off
 -     instance-000021ec              shut off
 -     instance-000023db              shut off
 -     instance-00002ad7              shut off

And also when I try start instances with virsh , output is below:

root@compute06:~# virsh start instance-0000219b
error: Failed to start domain instance-000012f9  
error: internal error: process exited while connecting to monitor:  2019-07-11T18:36:34.229534Z qemu-system-x86_64: -chardev pty,id=charserial0,logfile=/dev/fdset/2,logappend=on: char device redirected to /dev/pts/3 (label charserial0)
2019-07-11T18:36:34.243395Z qemu-system-x86_64: -drive file=/var/lib/nova/instances/659b5853-d094-4425-85a9-5bcacf88c84e/disk,format=qcow2,if=none,id=drive-virtio-disk0,cache=none,discard=ignore: Failed to get "write" lock
Is another process using the image?

Thanks,
Gökhan

Donny Davis <donny@fortnebula.com>, 11 Tem 2019 Per, 21:06 tarihinde şunu yazdı:
Can you ssh to the hypervisor and run virsh list to make sure your instances are in fact down?

On Thu, Jul 11, 2019 at 3:02 AM Gökhan IŞIK <skylightcoder@gmail.com> wrote:
Can anyone help me please ? I can no't rescue my instances yet :(

Thanks,
Gökhan

Gökhan IŞIK <skylightcoder@gmail.com>, 9 Tem 2019 Sal, 15:46 tarihinde şunu yazdı:
Hi folks,
Because of power outage, Most of our compute nodes  unexpectedly shut  down and now I can not start our instances.  Error message is "Failed to get "write" lock another process using the image?". Instances Power status is No State.  Full error log is http://paste.openstack.org/show/754107/. My environment is OpenStack Pike on Ubuntu 16.04 LTS servers and Instances are on a nfs shared storage. Nova version is 16.1.6.dev2. qemu version is 2.10.1. libvirt version is 3.6.0. I saw a commit [1], but it doesn't solve this problem.
There are important instances on my environment. How can I rescue my instances? What would you suggest ?

Thanks,
Gökhan