Hyper-V guest only gives the “Backup Using Saved State” option in DPM

Microsoft Data Protection Manager (DPM) 2007 and 2010 allow online backups of Hyper-V guests, providing the guests and the Hyper-V server meet the necessary requirements as follows: –



There is another condition that I’ve encountered that causes a Hyper-V guest to report as “Backup Using Saved State” rather than “Backup Using Child Partition Snapshot”, where disks are marked as read-only.

In order to correct this, use diskpart to select the applicable disk and run “attrib disk clear readonly”, and then check that the Hyper-V guest reports as “Backup Using Child Partition Snapshot”.

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