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:
May. 17, 2022
Filed:
Aug. 12, 2020
Applicant:
Vmware, Inc., Palo Alto, CA (US);
Inventors:
Goresh Musalay, Bangalore, IN;
Kashish Bhatia, Bangalore, IN;
Zubraj Singha, Bangalore, IN;
Tanay Ganguly, Bangalore, IN;
Assignee:
VMware, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/10 (2006.01); G06F 11/07 (2006.01); G06F 9/30 (2018.01); G06F 11/30 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1068 (2013.01); G06F 9/3009 (2013.01); G06F 11/073 (2013.01); G06F 11/076 (2013.01); G06F 11/0787 (2013.01); G06F 11/301 (2013.01); G06F 11/3037 (2013.01);
Abstract
Disclosed herein is a system and method for checking and maintaining consistency of blocks stored in a virtual disk with a content based read cache (CBRC). When blocks are written to the cache and virtual disk, a hash is computed for the block and stored in a digest file on the virtual disk. In the background, each block is obtained from the virtual disk, its hash is recomputed, and the hash is compared to the stored hash in the digest file. If the comparison indicates a mismatch, then an error is reported.