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:
Jan. 05, 2016
Filed:
Dec. 31, 2013
Emc Corporation, Hopkinton, MA (US);
Benjamin P. Kelley, Worcester, MA (US);
Mahadevan Vasudevan, Ashland, MA (US);
Millard C. Taylor, II, Chapel Hill, NC (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Improved clustered storage systems make use of a software toggle switch stored in a shared persistent configuration database, which allows a peer node to be rebooted into a FIPS 140 mode defined by the switch and then to take over as master while the original master node reboots into the new FIPS 140 mode as defined by the switch. Advantageously, system availability is maintained as the nodes are rebooted sequentially while a master is always available. The persistent switch allows for synchronization, while also allowing persistence of state even in the event of a system crash.