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:
Jun. 22, 2021
Filed:
Jan. 08, 2019
Oracle International Corporation, Redwood Shores, CA (US);
Donald Allan Graves, Jr., Manchester, NH (US);
Frederick S. Glover, Hollis, NH (US);
Alan David Brunelle, Merrimack, NH (US);
Pranav Dayananda Bagur, Nashua, NH (US);
James Bensson, Hollis, NH (US);
ORACLE INTERNATIONAL CORPORATION, Redwood Shores, CA (US);
Abstract
Techniques are provided for providing a fully active and non-replicated block storage solution in a clustered filesystem that implements cache coherency. In a clustered filesystem where one or more data blocks are stored in a respective cache of each host node of a plurality of host nodes, a request is received at a host node of the plurality of host nodes from a client device to write the one or more data blocks to a shared storage device. In response to the request, the one or more data blocks are stored in the cache of the host node and a particular notification is sent to another host node of the plurality of host nodes that the one or more data blocks have been written to the shared storage device. In response to receiving the notification, the other host node invalidates a cached copy of the one or more data blocks in the respective cache of the other host node.