Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Administering volume

snapshots

This chapter includes the following topics:

■ About volume snapshots

■ Traditional third-mirror break-off snapshots

■ Full-sized instant snapshots

■ Space-optimized instant snapshots

■ Emulation of third-mirror break-off snapshots

■ Linked break-off snapshot volumes

■ Cascaded snapshots

■ Creating multiple snapshots

■ Restoring the original volume from a snapshot

■ Creating instant snapshots

■ Creating traditional third-mirror break-off snapshots

■ Adding a version 0 DCO and DCO volume

About volume snapshots

VxVM can take an image of a volume at a given point in time. This image is called

a volume snapshot.

See “Volume snapshots” on page 134.

Chapter