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:
Aug. 26, 2008
Filed:
May. 13, 2004
Ajay P. Salpekar, Fremont, CA (US);
Shiv Rajpal, Fremont, CA (US);
Ravindra B. Venkataramaiah, San Jose, CA (US);
Ajay P. Salpekar, Fremont, CA (US);
Shiv Rajpal, Fremont, CA (US);
Ravindra B. Venkataramaiah, San Jose, CA (US);
Symantec Operating Corporation, Cupertino, CA (US);
Abstract
A method and apparatus for providing host server immunization from a failover process that may occur within a data switch that couples the host server to a storage volume. To facilitate such immunization, the method and apparatus caches non-read/write information that is generated by the switch during initialization of the storage volume to host server communication. Upon failover of a switch component within a failover pair of switch components in the switch, the read/write requests issued by the server are ignored and any non-read/write information commands are responded to using the cached information.