The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2008
Filed:
May. 03, 2004
Ronald S. Karr, Sunnyvale, CA (US);
Kalaivani Arumugham, Sunnyvale, CA (US);
John A. Colgrove, Los Altos, CA (US);
Poonam Dhavale, Sunnyvale, CA (US);
Ronald S. Karr, Sunnyvale, CA (US);
Kalaivani Arumugham, Sunnyvale, CA (US);
John A. Colgrove, Los Altos, CA (US);
Poonam Dhavale, Sunnyvale, CA (US);
Symantec Operating Corporation, Cupertino, CA (US);
Abstract
Systems and methods for performing recoverable mirroring in a storage environment employing asymmetrically distributed block virtualization. In one embodiment, the system may include a volume server, a first and a second host computer system, and a plurality of physical block devices. The volume server may be configured to aggregate storage in the plurality of physical block devices into a plurality of logical volumes, where a particular logical volume includes storage from at least two physical block devices, to make a first subset of the logical volumes available to the first host computer system for input/output, and to make a second subset of the logical volumes available to the second host computer system for input/output. The first subset and the second subset may be at least partially nonoverlapping, a given logical volume may be configured as a mirrored logical volume including a plurality of copies of a given data block.