VM Snapshots
XenServer 5.5.0 provides a convenient snapshotting mechanism that can take a snapshot of a VM's storage
and metadata at a given time. Where necessary IO is temporarily halted while the snapshot is being taken
to ensure that a self-consistent disk image can be captured.
Snapshot operations result in a snapshot VM that is similar to a template. The VM snapshot contains all
the storage information and VM configuration, including attached VIFs, allowing them to be exported and
restored for backup purposes.
The snapshotting operation is a 2 step process:
? Capturing metadata as a template.
? Issuing a VDI snapshot of the disk(s)