To create a snapshot and push it onto a snapshot hierarchy between the original volume and an existing snapshot volume, specify the name of the existing snapshot volume as the value of the infrontof
attribute to the vxsnap
make
command. The following example shows how to place the space-optimized snapshot, thurs_bu
, of the volume, dbvol
, in front of the earlier snapshot, wed_bu
:
# vxsnap -g dbdg make source=dbvol/newvol=thurs_bu/\
infrontof=wed_bu/cache=dbdgcache
Similarly, the next snapshot that is taken, fri_bu
, is placed in front of thurs_bu
:
# vxsnap -g dbdg make source=dbvol/newvol=fri_bu/\
infrontof=thurs_bu/cache=dbdgcache
See "Cascaded snapshots" on page 322.