Number of caches copies of images by cinder

Solution Verified - Updated -


  • We enabled the image_volume_cache_enabled = True in our cinder.conf, as described here:
  • In the cinder-internal project, we see the cached images being created in the form of volumes.
  • However, for the same image, several volumes are being created. We were unable to understand the pattern that cinder applies for making a new copy of a cached image into a new volume.
  • Before starting a new copy sometimes it uses the image for creating 2 insances and sometimes 40, as far as we could observe.
  • We would like to understand this process a little better.


  • Red Hat OpenStack Platform Version 10.0

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