The snap list command displays information for each Snapshot copy on a storage system. Along with the name of the Snapshot copy, it displays when the Snapshot copy was created and the size of the Snapshot copy.
To create a baseline version of a destination volume, systemA creates a Snapshot copy named systemB(0016782130)_vol2.1 on systemA. All Snapshot copies in vol1 of systemA, including systemB(0016782130)_vol2.1, are transferred to vol2 of systemB. When replicating a qtree, SnapMirror transfers only the qtree’s data in the Snapshot copy for the qtree.
systemB> snap list vol2 working..... %/used %/total date name -------- -------- ------------ -------- 0% ( 0%) 0% ( 0%) Nov 17 10:50 systemB(0016782130)_vol2.1 (snapmirror) 1% ( 0%) 0% ( 0%) Nov 17 10:00 hourly.0 1% ( 0%) 0% ( 0%) Nov 17 00:00 nightly.0 1% ( 0%) 0% ( 0%) Nov 15 16:00 hourly.1 1% ( 0%) 1% ( 0%) Nov 15 15:00 hourly.2 2% ( 0%) 1% ( 0%) Nov 15 14:00 hourly.3 2% ( 0%) 1% ( 0%) Nov 15 13:00 hourly.4 2% ( 0%) 1% ( 0%) Nov 15 12:00 hourly.5
When it is time to update the destination, another Snapshot copy is created on systemA.
systemA> snap list vol1 working.... %/used %/total date name -------- -------- ------------ -------- 0% ( 0%) 0% ( 0%) Nov 17 10:52 systemB(0016782130)_vol2.2 (snapmirror) 0% ( 0%) 0% ( 0%) Nov 17 10:51 systemB(0016782130)_vol2.1 (snapmirror) 1% ( 0%) 0% ( 0%) Nov 17 10:00 hourly.0 1% ( 0%) 0% ( 0%) Nov 17 00:00 nightly.0 1% ( 0%) 0% ( 0%) Nov 15 16:00 hourly.1 1% ( 0%) 1% ( 0%) Nov 15 15:00 hourly.2
After the systemB(0016782130)_vol2.2 Snapshot copy is transferred from systemA to systemB, both Snapshot copies exist on systemB. On systemA, however, systemB(0016782130)_vol2.1 is no longer needed and is deleted; only systemB(0016782130)_vol2.2 is retained to be used for the next transfer.
You can see a list of each SnapMirror Snapshot copy on the server, and the qtrees it contains, and the client sources of those qtrees and their timestamps by using the snap list -q command.
You can use the snap list -o command to display the names, timestamps, and sources (if they are copies) of the qtrees in a specified volume or at a path name.