Patent ID: 11874795
Assignee: DELL PRODUCTS L.P.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An apparatus comprising:
a data storage system comprising:
a plurality of compute nodes interconnected with a plurality of drives;
a plurality of storage objects on which data is logically stored, the storage objects being backed by the drives;
a storage object for which targetless snapshots are created, each targetless snapshot of the storage object being represented by a different one of a plurality of direct index lookup tables, and all of the direct index lookup tables referencing a common set of virtual replication data pointer tables such that multiple ones of the direct index lookup tables reference individual ones of the virtual replication data pointer tables;
a first direct index lookup table that represents current state of the storage object, the first direct index lookup table comprising entries with track references for tracks of the storage object;
a second direct index lookup table that represents a first targetless snapshot of the storage object, the second direct index lookup table comprising entries with track references for tracks of the storage object; and
a virtual replication data pointer table of the common set of virtual replication data pointer tables that maps the entries of the first direct index lookup table and the entries of the second direct index lookup table to the drives such that movement of data corresponding to an entry in the first direct index lookup table and an entry in the second direct index lookup table is represented by an update of the virtual replication data pointer table without updating the first direct index lookup table and without updating the second direct index lookup table.