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[John Garbutt <john@xxxxxxxxxxxxxxx>]

seem like a cinder thing, but throw it back if you were using the nova
api.

** Project changed: nova => cinder

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https://bugs.launchpad.net/bugs/1277339

Title:
  snapshot-failed-when-dependent-volume-exist

Status in Cinder:
  New

Bug description:
  When we use 'HpSanISCSIDriver ', there is some issues.

  1. Create volume
  2. Create snapshot from volume
  3. Create new volume from snapshot
  4. Try to delete snapshot.

  In this work flow, the status of snapshot should be 'error_deleting'.

  The error message says like this.

  <gauche version="1.0">\n\n  <response description="Volume delete
  operation failed: \'\'The snapshot \'snapshot-d357590a-47f7-4785-bd6b-
  debce5bd9a2a\' cannot be deleted because it is a clone point.  When
  multiple volumes depend on a snapshot, that snapshot is a clone point.
  To delete the clone point, you must first delete all but one of the
  volumes that depend on it.\'\'" name="CliqOperationFailed"
  processingTime="330" result="80001010"/>\n\n</gauche>

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