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. 03, 2018
Filed:
Mar. 31, 2016
Emc Corporation, Hopkinton, MA (US);
Wayne E. Garrett, Jr., Bellingham, MA (US);
Ronald D. Proulx, Boxborough, MA (US);
Ashok Tamilarasan, Shrewsbury, MA (US);
Eric Petsching, Oxford, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Technique provides resiliency to RAID group including storage devices. Technique involves operating RAID group in normal state in which each storage device is initially online to perform write and read operations and configured to go offline in response to a media error count for that storage device reaching an end-of-life threshold and other storage devices in RAID group being healthy. Technique involves receiving a notification that a storage device of RAID group has encountered an error situation. Technique involves determining whether other storage devices of RAID group are healthy. Technique involves transitioning, in response to receiving notification and determining that other storage devices are healthy, RAID group from normal state to high resiliency degraded state in which the storage device is taken offline and the other storage devices are configured to remain online for facilitating the reconstruction of data associated with the storage device.