US 12,216,928 B2
Fragment management method and fragment management apparatus
Chen Wang, Shenzhen (CN); Tangren Yao, Shenzhen (CN); and Feng Wang, Chengdu (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 12, 2022, as Appl. No. 17/574,262.
Application 17/574,262 is a continuation of application No. 16/718,976, filed on Dec. 18, 2019, granted, now 11,243,706.
Application 16/718,976 is a continuation of application No. PCT/CN2018/075188, filed on Feb. 3, 2018.
Claims priority of application No. 201710515966.2 (CN), filed on Jun. 29, 2017.
Prior Publication US 2022/0137849 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0647 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0619 (2013.01); G06F 3/067 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a computing node, the method comprising:
storing data fragments and a first parity fragment of the data fragments in a first-level storage media;
migrating the first parity fragment from the first-level storage media to a second-level storage medium of the storage system and keeping the data fragments stored in the first-level storage media, wherein the first-level storage media is a high-speed storage medium, wherein the second-level is a low-speed storage medium, and wherein the first-level storage media and the second-level storage medium are different types of storage media;
storing the first parity fragment in the second-level storage medium.