Emc Corporation

Santosh Pasula Reddy

Himabindu Tummala

Milena Bergant

John Michael Hayden

Daniel Zhu

A data storage server is programmed with common software modules for management, version control, and scheduling of replication of data storage objects of multiple data storage object types. The multiple data storage object types include iSCSI LUNs, file systems, virtual servers, directories, and files. The version control determines if two data storage objects are the same or have a common base so that only a difference needs to be transmitted for replication or restoration. The scheduler controls the timing of snapshot creation and deletion, and replication transmission to one or more remote destinations. The scheduler may ensure that a replica of a data storage object is out-of-sync with the original of the data storage object by no more than a specified amount of time.

Data storage server having common replication architecture for multiple storage object types

A data storage server is programmed for management, version control, and scheduling of replication of multiple types of data storage objects including iSCSI LUNs and file systems. The version control determines if two data storage objects are the same or have a common base so that only a difference needs to be transmitted for replication or restoration. A replication job may specify a 'one-to-many' replication or a cascaded replication, and any snapshot retention policy is propagated during a cascaded replication. Concurrent replication sessions to the same destination are paced in accordance with respective allocation shares of the reception bandwidth. File handle information is replicated so that a file handle issued by a primary data storage server can be used for accessing a replicated file in a secondary data storage server.

Growing community of inventors

Marlborough, MA, United States of America

Santosh Pasula Reddy