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:
Feb. 19, 2019
Filed:
Aug. 22, 2016
Hewlett Packard Enterprise Development Lp, Houston, TX (US);
Yinglin Sun, San Jose, CA (US);
Nimesh Bhagat, San Jose, CA (US);
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Abstract
Methods and systems are presented for upgrading non-volatile memories (NVMs) of controllers in a storage system. One method includes operations for taking a second controller off-line, wherein NVMs in first and second controllers are initially mirrored in a first format, with the first controller active and the second controller as standby. The method includes reformatting the second NVM in the second controller to a second format, and blocking handling of IOs at the first controller after reformatting of the second NVM is complete. The method includes migrating metadata to the second NVM from the first NVM, and bringing the second controller back on-line as standby. The method includes failing over to the second controller, and reformatting the first NVM to the second format. The method includes updating metadata in the first NVM to mirror metadata in the second NVM, and bringing the first controller back on-line in standby.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile