US 12,248,433 B1
Method and apparatus for snapshot management
Mahadev Agasar, Rabkavi (IN); and Hemanth Dasan, Bangalore (IN)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Nov. 17, 2023, as Appl. No. 18/512,444.
Int. Cl. G06F 16/11 (2019.01); G06F 16/17 (2019.01)
CPC G06F 16/128 (2019.01) [G06F 16/1727 (2019.01); G06F 16/1734 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method for use in a storage system, comprising:
retrieving, by a snapshot management tool, a plurality of snapshot creation policies, each of the plurality of snapshot creation policies including one or more rules that specify when or under what circumstances a snapshot associated with the snapshot creation policy should be created;
retrieving, by the snapshot management tool, a plurality of snapshot expiration policies, each of the expiration policies including one or more rules that specify when or under what circumstances a snapshot associated with the snapshot expiration policy should be deleted;
receiving, by the snapshot management tool, a user input that specifies a period of interest;
processing, by the snapshot management tool, the plurality of snapshot creation policies to identify a first count of snapshots that were required to be created during the period of interest by any of the plurality of snapshot creation policies;
processing, by the snapshot management tool, the plurality of snapshot creation policies and the plurality of the snapshot expiration policies to identify a second count of snapshots that were required to be created during the period of interested by any of the plurality of snapshot creation policies, and which were required to be deleted during the period of interest by any of the plurality of snapshot expiration policies;
identifying, by the snapshot management tool, a third count of snapshots that are currently present in the storage system and which were created based on the plurality of snapshot creation policies during the period of interest;
identifying, by the snapshot management tool, a count of missing snapshots based on the first count, the second count, and the third count, each of the missing snapshots being a snapshot that was required to be created by the plurality of snapshot creation policies, but which failed to be created; and
displaying an indication of the count of missing snapshots in a graphical user interface of the snapshot management tool.