HP Veritas Volume Manager 5.0 -UX 11i v3 manual Vxsnap dis S2

316Administering volume snapshots

Cascaded snapshots

Figure 9-7 Dissociating a snapshot volume

vxsnap dis is applied to snapshot S2, which has no snapshots of its own

Original volume

V

Snapshot

volume of V:

S1

Snapshot

volume of S1:

S2

vxsnap dis S2

Original volume

V

Snapshot	Volume
volume of V:
	S2
S1

S1 remains owned by V S2 is independent

vxsnap dis is applied to snapshot S1, which has one snapshot S2

Original volume

V

Snapshot

volume of V:

S1

Snapshot

volume of S1:

S2

vxsnap dis S1

Original volume

V

Volume

S1

S1 is independent

Snapshot

volume of V:

S2

S2 is adopted by V

■vxsnap split dissociates a snapshot and its dependent snapshots from its parent volume. The snapshot volume that is to be split must have been fully synchronized from its parent volume. This operation is illustrated in Figure 9-8.