Hewlett Packard Enterprise Development LP

Salil Gokhale

Siamak Nazari

Srinivasa D Murthy

Ayman Abouelwafa

Ming Ma

Douglas James Cameron

Jonathan Andrew McDowell

Examples include compressed extent versions. Examples may create an empty target virtual volume tree having a tree structure of a source virtual volume tree of a source storage system, the source virtual volume tree comprising source base and source snapshot virtual volumes, each representing respective versions of a plurality of extents, wherein each of the extents corresponds to a different portion of an address space of the source base virtual volume. Examples may include compressed extent collections, each comprising a compressed representation of multiple populated versions of a single extent from the source base and snapshot virtual volumes, the multiple populated versions compressed relative to one another.

Compressed extent versions

A method for migrating data in a storage system includes generating a first set of logical disks (LDs), the LDs being mapped to physical storage space in the storage system, generating a temporary virtual volume (VV) mapped to the first set of LDs, generating a second set of LDs mapped to the temporary VV, and migrating data between the second set of LDs and a third set of LDs.

Data migration

Growing community of inventors

Fremont, CA, United States of America

Salil Gokhale