VERITAS Volume Manager 4.1 Administrator's Guide

Understanding VERITAS Volume Manager
FastResync
Chapter 1 55
Figure 1-32, “Mirrored Volume with Persistent FastResync Enabled,”
shows an example of a mirrored volume with two plexes on which
Persistent FastResync is enabled. Associated with the volume are a DCO
object and a DCO volume with two plexes.
Figure 1-32 Mirrored Volume with Persistent FastResync Enabled
When the snapstart operation is performed on the volume, this sets up a
snapshot plex in the volume and associates a disabled DCO plex with it,
as shown in Figure 1-33, “Mirrored Volume After Completion of a
Snapstart Operation,”
Figure 1-33 Mirrored Volume After Completion of a Snapstart Operation
Mirrored Volume
Data Plex
DCO Volume
Data Plex
Data Change Object
DCO
DCO
Plex
Plex
Mirrored Volume
Data Plex
DCO Volume
Data Plex
Data Change Object
DCO
DCO
Plex
Plex
Snapshot
Plex
Disabled
DCO
Plex