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:
Sep. 19, 2006
Filed:
Mar. 21, 2003
Scott Schoenthal, San Ramon, CA (US);
Steven H. Rodrigues, Mountain View, CA (US);
Alan L. Rowe, San Jose, CA (US);
Joydeep Sen Sarma, Mountainview, CA (US);
Susan M. Coatney, Cupertino, CA (US);
Scott Schoenthal, San Ramon, CA (US);
Steven H. Rodrigues, Mountain View, CA (US);
Alan L. Rowe, San Jose, CA (US);
Joydeep sen Sarma, Mountainview, CA (US);
Susan M. Coatney, Cupertino, CA (US);
Network Appliance, Inc., Sunnyvale, CA (US);
Abstract
A technique includes a set of procedures utilized during the transfer of service of a failed storage system to a surviving storage system of a cluster failover (CFO) configuration during a system outage, such as a disaster scenario. The procedures are executed by a RAID subsystem of the surviving storage system during disaster takeover, storage healing and node restart operations. The procedures prevent the possibility that clients accessing the storage system will see out-of-date versions of the data either during transfer of service of the system during the disaster scenario or subsequently after the storage system is healed and service on the failed system has been restored.