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[Bug 1576621] [NEW] Snapshots are alway made in raw and not qcow2

 

Public bug reported:

Hi,
I am using the same version of openstack in two deployments. When I take a snapshot in one environment its is saved in qcow2 but in the other it is saved as raw. The raw format saves an image with the size of the flavour. qcow2 format saves an image the size of the actual used disk space. 

The version I am using of openstack is: Version: 2015.1.1

The version of Glance is: 0.17.1

I could not ascertain any difference between the glance configuration in
both environments. The only difference is that the CEPH file system is
used in the deployment where snapshots are saved in raw. However we are
able to upload images in qcow2 nonetheless.

Thank you,
Mark Donovan

** Affects: glance
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1576621

Title:
  Snapshots are alway made in raw and not qcow2

Status in Glance:
  New

Bug description:
  Hi,
  I am using the same version of openstack in two deployments. When I take a snapshot in one environment its is saved in qcow2 but in the other it is saved as raw. The raw format saves an image with the size of the flavour. qcow2 format saves an image the size of the actual used disk space. 

  The version I am using of openstack is: Version: 2015.1.1

  The version of Glance is: 0.17.1

  I could not ascertain any difference between the glance configuration
  in both environments. The only difference is that the CEPH file system
  is used in the deployment where snapshots are saved in raw. However we
  are able to upload images in qcow2 nonetheless.

  Thank you,
  Mark Donovan

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