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:
Nov. 15, 2022
Filed:
Jul. 23, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Baote Zhuo, Beijing, CN;
Jian Gao, Beijing, CN;
Lifeng Yang, Beijing, CN;
Xinlei Xu, Beijing, CN;
Jibing Dong, Beijing, CN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
In techniques for selecting a rebuild destination in a storage system, a failed stripe group associated with a failed extent group in a failed storage device among storage devices is detected. A group of normal storage devices other than the failed storage device is determined. Regarding a normal storage device in the group of normal storage devices, a first count for the normal storage device is obtained, the first count representing a number of failed stripes which are allowed to be rebuilt to the normal storage device in the failed stripe group. Based on the first count, a destination storage device is selected from the group of normal storage devices for rebuilding a failed stripe in the failed stripe group. During rebuild, a destination for rebuilding the failed stripe may be effectively selected, and extents in reserved space in the storage system may be more fully utilized.