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. 24, 2026
Filed:
Mar. 04, 2024
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Junxiang Wang, Shanghai, CN;
Vadim Makhervaks, Bellevue, WA (US);
Yingrui Tong, Shanghai, CN;
Sijia Huang, Shenghai, CN;
Yuxing Zhou, Shenghai, CN;
Zhihao Liu, Shanghai, CN;
Xigeng Sun, Shanghai, CN;
Bangzhu Zhu, Kunming, CN;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Caching write input/output (I/O) operations in a replica-based storage system. A write I/O operation is received from a consumer, and a corresponding replica list is identified. A first replica set is selected from the replica list for caching the I/O operation, and a first log corresponding to the I/O operation is added to a primary ring buffer of the first replica set. When the first log cannot be replicated to a secondary ring buffer of the first replica set, a second replica set is selected from the replica list for caching the I/O operation. A second log corresponding to the I/O operation is added to a primary ring buffer of the second replica set. Once the second log has been replicated to a secondary ring buffer of the second replica set, the I/O operation is acknowledged to the consumer, and the second log is de-staged to a backing store.