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:
Mar. 28, 2017
Filed:
Nov. 08, 2011
Susan W. Brosnan, Raleigh, NC (US);
Patricia S. Hogan, Raleigh, NC (US);
John David Landers, Jr., Raleigh, NC (US);
David J. Steiner, Raleigh, NC (US);
Susan W. Brosnan, Raleigh, NC (US);
Patricia S. Hogan, Raleigh, NC (US);
John David Landers, Jr., Raleigh, NC (US);
David J. Steiner, Raleigh, NC (US);
Lenovo Enterprise Solutions (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Embodiments of the invention relate to leveraging disk controller cache memory to simulate non-volatile random access memory. At least one logical block address in cache memory of the disk controller is designated and set aside as permanently dirty. Read operations may be supported with data in the cache memory; including data retained in any block address designated as permanently dirty. Write operations may also be supported by storing the write data in the logical block address designated as permanently dirty.