Github user yvsubhash commented on the issue: https://github.com/apache/cloudstack/pull/1740 @syed On the xenserver we always keep the latest snapshot in primary as xenserver needs it to create delta snapshots. If the snapshot is not present in xenserver, next snapshot would create full snapshot rather than delta snapshot. Please refer to the bug related to that https://issues.apache.org/jira/browse/CLOUDSTACK-2630
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