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:
Nov. 06, 2007
Filed:
Jul. 26, 2004
Kalaivani Arumugham, Sunnyvale, CA (US);
Santosh Rao, Santa Clara, CA (US);
Gopal Sharma, San Jose, CA (US);
Poonam Dhavale, Sunnyvale, CA (US);
Michael Wahl, Georgetown, TX (US);
Oleg Kiselev, Palo Alto, CA (US);
Kalaivani Arumugham, Sunnyvale, CA (US);
Santosh Rao, Santa Clara, CA (US);
Gopal Sharma, San Jose, CA (US);
Poonam Dhavale, Sunnyvale, CA (US);
Michael Wahl, Georgetown, TX (US);
Oleg Kiselev, Palo Alto, CA (US);
Symantec Operating Corporation, Cupertino, CA (US);
Abstract
A system for managing input/output (I/O) errors in a storage system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume client. A designated route may be used to send I/O requests from the volume client to a physical block device during normal operation. If the volume client loses connectivity on the designated route, the volume client may route an I/O request to the physical block device via an alternate route. In one specific embodiment, the volume client may route an I/O request to the physical block device via the volume server.