Patent 7734882 was granted and assigned to RELDATA on June, 2010 by the United States Patent and Trademark Office.
SCSI commands are used over IP (iSCSI) to trigger digest calculations of block span ranges. The parameters of the digest-calculation command include the command itself a block range, and the digest-calculation method to be used. A related combined command compares the digest-calculation result with a preexisting digest-calculation result. The parameters of the combined command include the parameters of the digest-calculation command, and the preexisting digest calculation result. Another command initializes a block range.