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:
Oct. 27, 2015
Filed:
Dec. 31, 2013
Symantec Corporation, Mountain View, CA (US);
Anurag Vora, Sunnyvale, CA (US);
Symantec Corporation, Mountain View, CA (US);
Abstract
An InfiniBand managed storage environment is made up of processor nodes containing HCAs and managed storage devices containing TCAs and exposing a plurality of LUNs and volumes. For each InfiniBand channel between a specific HCA and a specific TCA, the paths between the HCA and any LUN or volume exposed by the TCA are grouped into a set. Occurrence of failures on specific paths of specific sets on specific channels are determined, for example by registering for callbacks or polling for occurrence of events which adversely affect communication between endpoints. Also, I/O operations executed by processor nodes are tracked and failures thereof are detected. When the occurrence of a failure on a specific path of a set is determined, all I/O operations on all paths of the set are proactively rerouted to a separate set on a separate channel that connects the same processor node and storage device.