Snapshots in Hyper-V, checkpoints in SCVMM, diff-disks in VPC, undo in Office… can’t we all just get along?
As the terms and technologies have changed, people have gotten confused about the best use scenario/what is supported for snapshots. Here are some good recent blog posts, discussion and the FAQ to help you sort it out.
Hyper-V Virtual Machine Snapshots: FAQ
Virtual PC Guy's WebLog : Hyper-V Terminology
Virtual PC Guy's WebLog : Managing Snapshots with Hyper-V
Virtual PC Guy's WebLog : Virtual Machine Snapshotting under Hyper-V
Virtual PC Guy's WebLog : Where are my snapshot files? [Hyper-V]
Virtual PC Guy's WebLog : What happens when I delete a snapshot ...
SCVMM 2007 Checkpoints are the new UNDO | Media | TechNet Edge
About Virtual Machine Checkpoints
Hyper-V / SCVMM: Why aren't snapshots (checkpoints) recommended as a backup method?
Taylor Brown's blog post explains away some of the confusion around backup/snapshot in Hyper-V: http://blogs.msdn.com/taylorb/archive/2008/08/20/backing-up-hyper-v-virtual-machines-using-windows-server-backup.aspx
How to enable Windows Server Backup support for the Hyper-V VSS Writer : http://blogs.technet.com/askcore/archive/2008/08/20/how-to-enable-windows-server-backup-support-for-the-hyper-v-vss-writer.aspx
Windows Server 2008 Backup and Recovery Overview : http://technet.microsoft.com/library/cc770593.aspx
Windows Server Backup Step-by-Step Guide for Windows Server 2008 : http://technet.microsoft.com/en-us/library/cc770266.aspx
Microsoft Data Protection Manager trial: http://technet.microsoft.com/dpm/bb727240.aspx