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:
Jan. 24, 2023
Filed:
Apr. 20, 2021
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Jinxian Xing, Hopkinton, MA (US);
Julie Zhivich, Westborough, MA (US);
John Krasner, Coventry, RI (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
A storage array that uses NVMEoF to interconnect compute nodes with NVME SSDs via a fabric and NVME offload engines implements flow control based on transaction latency. Transaction latency is the elapsed time between the send side completion message and receive side completion message for a single transaction. Counts of total transactions and over-latency-limit transactions are accumulated over a time interval. If the over limit rate exceeds a threshold, then the maximum allowed number of enqueued pending transactions is reduced. The maximum allowed number of enqueued pending transactions is periodically restored to a default value.