On 08/16/2013 07:51 PM, Daniel P. Berrange wrote:
On Sat, Aug 10, 2013 at 05:38:20PM +0530, Deepak C Shetty wrote:
Hi All, I am trying to do a hotplug of a disk from VDSM (which uses libvirt to get things done). I hit the below error "operation failed: open disk image file failed" comign from virDomainAttachDevice.
Some background:
1) The qemu-img create cmd I use (inside vdsm) to create the file being hotplugged is
/usr/bin/qemu-img create -f qcow2 -F qcow2 -b /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 /var/run/vdsm/3333017d-1278-4bfb-8129-62bded257399' (cwd /var/run/vdsm)
I even tried using the rel. backing path instead of abs. path as below..
/usr/bin/qemu-img create -f qcow2 -F qcow2 -b ../../../rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 /var/run/vdsm/3333017d-1278-4bfb-8129-62bded257399' (cwd /var/run/vdsm)
but hit the same error during hotplug operation
2) qemu-img info /var/run/vdsm/3333017d-1278-4bfb-8129-62bded257399 image: /var/run/vdsm/3333017d-1278-4bfb-8129-62bded257399 file format: qcow2 virtual size: 3.8G (4096000000 bytes) disk size: 196K cluster_size: 65536 backing file: /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 backing file format: qcow2 What does this show
qemu-img info /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399
?
[root@vdsm_tsm_int_f19 vdsm]# qemu-img info /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 image: /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 file format: qcow2 virtual size: 3.8G (4096000000 bytes) disk size: 136K cluster_size: 65536 [root@vdsm_tsm_int_f19 vdsm]# ls -l /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 -r--r-----. 1 vdsm kvm 197120 Aug 16 18:28 /rhev/data-center/000065de-04b8-42e2-986c-2de664708be7/11112d24-4cda-4200-8f6d-a1d8362c70fd/images/22224c45-6504-4ea1-bd24-12340017dd32/3333017d-1278-4bfb-8129-62bded257399 thanx, deepak
Daniel