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:
Sep. 10, 2024
Filed:
Feb. 12, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Marjan Radi, San Jose, CA (US);
Dejan Vucinic, San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A programmable switch includes ports configured to communicate with Non-Volatile Memory express (NVMe) nodes. The programmable switch is configured to store a mapping of NVMe namespaces to physical storage locations located in the NVMe nodes. An NVMe node is determined by the programmable switch to have become inactive, and one or more NVMe namespaces are removed from the mapping that are associated with one or more physical storage locations in the inactive NVMe node. A notification of the one or more removed NVMe namespaces is sent to a network controller. According to one aspect, the network controller stores a global mapping of NVMe namespaces to physical storage locations in the NVMe nodes. The network controller sends at least one notification of the update to at least one other programmable switch to update at least one mapping stored at the at least one other programmable switch.