US 12,093,556 B1
Efficient table-based replication between source and target storage systems
Narayan Behera, Pune (IN); and Sameer P. Mohod, Pune (IN)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Mar. 10, 2023, as Appl. No. 18/119,954.
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/065 (2013.01) [G06F 3/0604 (2013.01); G06F 3/067 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processing device comprising a processor coupled to a memory;
the at least one processing device being configured:
to maintain for a first storage system a plurality of index tables characterizing data replicated between the first storage system and respective ones of at least two or more additional storage systems;
to receive a request to replicate a particular data item between the first storage system and a designated one of the two or more additional storage systems;
to access, responsive to the received request, a corresponding one of the index tables characterizing data replicated between the first storage system and the designated one of the two or more additional storage systems; and
to control replication of the particular data item based at least in part on one or more entries of the corresponding one of the index tables;
wherein a given one of the index tables comprises a replicated file index table having a plurality of entries comprising respective identifiers of respective files previously replicated between the first storage system and the corresponding one of the two or more additional storage systems.