yahoo-eng-team team mailing list archive

[Nilesh Bhosale <nilesh.bhosale@xxxxxxxxxx>]

Public bug reported:

GPFS 'copy_on_write' mode works only when creating a volume from an image, with image format being 'raw'.
When the image format is other than 'raw' like for example 'qcow2', the GPFS driver copies the image file to the volume by converting it to 'raw' format.
But, currently during this operation as well, GPFS driver is snap'ing the glance image, making it a clone parent, with no child associated.
Though this does not break any functionality, this is a unnecessary operation and needs to be avoided.

** Affects: cinder
     Importance: Undecided
     Assignee: Nilesh Bhosale (nilesh-bhosale)
         Status: New


** Tags: cinder gpfs

** Project changed: glance => cinder

** Changed in: cinder
     Assignee: (unassigned) => Nilesh Bhosale (nilesh-bhosale)

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to Glance.
https://bugs.launchpad.net/bugs/1378964

Title:
  GPFS should snap the glance image file only the image format is 'raw'

Status in Cinder:
  New

Bug description:
  GPFS 'copy_on_write' mode works only when creating a volume from an image, with image format being 'raw'.
  When the image format is other than 'raw' like for example 'qcow2', the GPFS driver copies the image file to the volume by converting it to 'raw' format.
  But, currently during this operation as well, GPFS driver is snap'ing the glance image, making it a clone parent, with no child associated.
  Though this does not break any functionality, this is a unnecessary operation and needs to be avoided.

To manage notifications about this bug go to:
https://bugs.launchpad.net/cinder/+bug/1378964/+subscriptions