[Qemu-devel] [Bug 1090615] Re: RFE: More info in qemu-img info/check

[Thomas Huth]

** Changed in: qemu
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/1090615

Title:
   RFE: More info in qemu-img info/check

Status in QEMU:
  New

Bug description:
  Originally filed in Fedora bugzilla:
  https://bugzilla.redhat.com/show_bug.cgi?id=861375

  """
  qemu-img info currently give me info like this:

  image: /home/alex/.local/share/gnome-boxes/images/Fedora 16
  file format: qcow2
  virtual size: 11G (11794287616 bytes)
  disk size: 4.5G
  cluster_size: 65536

  In order to figure out the "health" of an image there is some more
  information I would like:

  in-use disk size - I.e the subset of disk size that is not marked as
  unused due to e.g. TRIM operations

  amount of compressed clusters. I.e. "is it useful to re-compress the
  image".

  Fragmentation estimation.

  This would be useful to both sysadmins in general and for automated things 
like
  what we want to do in gnome-boxes:
  https://bugzilla.gnome.org/show_bug.cgi?id=685032
  """

  As mentioned in the original report, qemu-img check currently has
  fragmentation stats, but only for QED.

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