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:
Jul. 19, 2005
Filed:
Aug. 20, 2001
Samuel M. Cramer, Sunnyvale, CA (US);
Naveen Bali, Santa Clara, CA (US);
Samuel M. Cramer, Sunnyvale, CA (US);
Naveen Bali, Santa Clara, CA (US);
Network Appliance, Inc., Sunnyvale, CA (US);
Abstract
The invention is a method for operating a file server system in a cluster mode that provides for relatively rapid and reliable takeover by one file server of another. This is done by a system operator requesting takeover of file services of a file server, letting the first file server complete existing file service requests from clients, refusing further file service requests addressed to the first file server, and the one file server taking over by transferring file service requests to the one file server. As part of this takeover the one file server takes on the identity of the first filer and activates network interfaces and network addresses that replicate the first server's network addresses.