System and method for storage virtualization

Details System and method for storage virtualization System and method for storage virtualization

2005-01-18

2005-01-18

Gaffin, Jeffrey (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S007000, C710S074000, C710S105000, C711S111000, C711S112000

Reexamination Certificate

active

06845403

ABSTRACT:
The present invention is generally directed to a system and method for virtualizing storage in a networked system. In accordance with one aspect of the invention, in a system having an initiator and at least one storage device, an inventive method determines, based upon a SCSI command received by a manager from the initiator, which of the data storage devices are implicated by the SCSI command. The method then forms an iSCSI command that is sent from the manager to each of the implicated storage devices, and receives at the manager an iSCSI response from each of implicated storage devices, after each of the storage devices has completed its implicated data transactions with the initiator. Finally, the method forms a SCSI response that is sent by the manager to the initiator. A corresponding system is also provided.

REFERENCES:
patent: 5293624 (1994-03-01), Andrade et al.
patent: 6115772 (2000-09-01), Crater
Cisco System, iSCSI Protocol Concepts and Implementation, May 2001, pp. 1-12.*
Yaron Klein, Storage Virtualization with iSCSI Protocol, Nov. 2, 2000, pp. 1-15.
J. Satran, etal., iSCSI, Dec. 30, 2000, pp. 1-89.

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