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. 31, 2026
Filed:
Feb. 20, 2024
Techniques for log ordering to optimize write latency in systems assigning logical address ownership
Dell Products L.p., Hopkinton, MA (US);
Dell Products L.P., Hopkinton, MA (US);
Abstract
In at least one embodiment, processing can include receiving a command at a first node in a system, wherein the first node manages first user data (UD) log resources and a second node of the system manages second UD log resources. The first and second nodes can generate sequence numbers from corresponding node-local sequences. Each command of a UD log is associated with a generic serial number (GENSN). Responsive to determining the command is a write I/O directed to logical addresses owned by the first node, the first node can perform processing to record the write I/O in the UD log without any internode communication with the second node. The recorded write I/O can be associated with a GENSN including a non-zero value that is a sequence number of the first node's local sequence and a zero value corresponding to the second node.