| US 7,512,756 B2 | ||
| Performance improvement for block span replication | ||
| Kirill Malkin, Morris Plains, N.J. (US) | ||
| Assigned to RELDATA, Inc., Parsippany, N.J. (US) | ||
| Filed on Sep. 06, 2006, as Appl. No. 11/470,537. | ||
| Claims priority of provisional application 60/714399, filed on Sep. 06, 2005. | ||
| Prior Publication US 2007/0055834 A1, Mar. 08, 2007 | ||
| Int. Cl. G06F 13/00 (2006.01) | ||
| U.S. Cl. 711—162 [711/154; 711/168; 711/210] | 39 Claims |
| 1. A method of replicating data from a first block storage resource to a second block storage resource, comprising:
identifying differences between a first block span of the first block storage resource and an equal-sized second block span
of the second block storage resource, wherein the first block span and the second block span start at a same block number;
and
copying the first block span to the second block storage resource only if differences are identified.
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