Data replication in a storage system

A tangible, non-transitory, computer-readable media having instructions thereupon which, when executed by a processor, cause the processor to perform a method comprising:

• managing a first index for data in a first storage system, the first storage system having a first partitioning scheme;
• managing a second index for data in a second storage system, the second storage system having a second partitioning scheme differing from the first partitioning scheme;
• replicating the data from the first storage system to the second storage system;
• transforming one or more portions of an identifier of the data from the first storage system, to form a pointer into one of a plurality of partitions in the second partitioning scheme;
• and
• mapping the replicated data into the second partitioning scheme, via the transforming of the identifier of the data from the first storage system, wherein the transforming preserves locality for data and associated metadata, from a first plurality of partitions in the first storage system according to the first partitioning scheme, mapping into a second plurality of partitions in the second storage system according to the second partitioning scheme.

A storage system, comprising:

• storage memory;
• and
• one or more processors, configurable to:
• managing a first index for data in a first storage system, the first storage system having a first partitioning scheme;
• managing a second index for data in a second storage system, the second storage system having a second partitioning scheme differing from the first partitioning scheme;
• replicating the data from the first storage system to the second storage system;
• transforming one or more portions of an identifier of the data from the first storage system, to form a pointer into one of a plurality of partitions in the second partitioning scheme;
• and
• mapping the replicated data into the second partitioning scheme, via the transforming of the identifier of the data from the first storage system wherein the mapping comprises using the pointer to map the data from the storage system into the one of the plurality of partitions in the second storage system in accordance with the second partitioning scheme.