VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Backing up Volumes Online
220 VERITAS Volume Manager Administrator’s Guide
For example, if myvol1 and SNAP-myvol1 are in separate disk groups mydg1 and
mydg2 respectively, the following commands stop the tracking on SNAP-myvol1 with
respect to myvol1 and on myvol1 with respect to SNAP-myvol1:
# vxassist -g mydg2 snapclear SNAP-myvol1 myvol1_snp
# vxassist -g mydg1 snapclear myvol1 SNAP-myvol1_snp
Displaying Snapshot Information (snapprint)
The vxassist snapprint command displays the associations between the original
volumes and their respective replicas (snapshot copies):
# vxassist snapprint [volume]
Output from this command is shown in the following examples:
# vxassist -g mydg snapprint v1
V NAME USETYPE LENGTH
SS SNAPOBJ NAME LENGTH %DIRTY
DP NAME VOLUME LENGTH %DIRTY
v v1 fsgen 20480
ss SNAP-v1_snp SNAP-v1 20480 4
dp v1-01 v1 20480 0
dp v1-02 v1 20480 0
v SNAP-v1 fsgen 20480
ss v1_snp v1 20480 0
# vxassist -g mydg snapprint v2
V NAME USETYPE LENGTH
SS SNAPOBJ NAME LENGTH %DIRTY
DP NAME VOLUME LENGTH %DIRTY
v v2 fsgen 20480
ss -- SNAP-v2 20480 0
dp v2-01 v2 20480 0
v SNAP-v2 fsgen 20480
ss -- v2 20480 0
In this example, Persistent FastResync is enabled on volume v1, and Non-Persistent
FastResync on volume v2. Linesbeginning withv, dp and ss indicate a volume, detached
plex and snapshot plex respectively. The %DIRTY field indicates the percentage of a
snapshot plex or detached plex that is dirty with respect to the original volume. Notice