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:
Feb. 08, 2022
Filed:
Oct. 31, 2018
Alibaba Group Holding Limited, Grand Cayman, KY;
Qingda Lu, Bellevue, WA (US);
Yikang Xu, Redmond, WA (US);
Qinghua Ye, Sammamish, WA (US);
Jiesheng Wu, Redmond, WA (US);
Liping Bao, Sammamish, WA (US);
Alibaba Group Holding Limited, Grand Cayman, KY;
Abstract
Methods and systems are provided for improving a journaling file system by reducing journaling overhead utilizing a remapping interface to log-structured cloud block devices such that blocks in a journaling transaction are atomically mapped to their final disk locations with minimum overhead. With log-structured cloud block devices, all blocks may be stored in logfiles and indexed for access. By modifying the index of the destination block to point to the corresponding journal block, the additional write may be avoided, and a journal block may effectively be remapped from its original LBA to its destination LBA without any actual data movement, thereby reducing the file system journaling overhead.