Mainframe Enablers TimeFinder SnapVX and zDP 8.5 Product Guide

Snapshot life cycle

You can create and manage SnapVX snapshots with the following commands:

CREATE—A snapshot is created with the CREATE command.
ACTIVATE—The point-in-time image of the source devices is saved to the created snapshot, once the snapshot is activated.
RENAME—The snapshot can be renamed with the RENAME command.
LINK—A created and activated snapshot is not usable for reads or writes until it is associated with a target device using the LINK command.
UNLINK—Target devices are disassociated with a snapshot using the UNLINK command.
TERMINATE—Snapshots are deleted with the TERMINATE command, provided they are not linked to a target device.

These commands are full-volume operations only.

Table 2. SnapVX group actions and statusesThe following table shows SnapVX group status transitions.
Action	Initial status	Resulting status
DEFINE	INITIAL	INITIAL
CREATE	INITIAL	CREATED
ACTIVATE	CREATED	PRESNAP, POSTSNAP, or ACTIVATE
ACTIVATE	PRESNAP	ACTIVATE
LINK	PRESNAP, POSTSNAP, or ACTIVATE	LINKED
UNLINK	LINKED	UNLINKED
TERMINATE	UNLINKED	INITIAL
QUERY	INITIAL	INITIAL
FREE	INITIAL	INITIAL

To view group status history, use the QUERY GROUP command.