US 11,675,497 B2
Method, device, and computer program product for managing storage system
Geng Han, Beijing (CN); Tao Chen, Beijing (CN); and Jian Gao, Beijing (CN)
Assigned to EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US)
Filed by EMC IP Holding Company LLC, Hopkinton, MA (US)
Filed on Jun. 16, 2021, as Appl. No. 17/349,735.
Claims priority of application No. 202110432823.1 (CN), filed on Apr. 21, 2021.
Prior Publication US 2022/0342546 A1, Oct. 27, 2022
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0604 (2013.01) [G06F 3/0659 (2013.01); G06F 3/0689 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for managing a storage system, including:
determining multiple storage units provided by multiple storage devices, each storage unit in the multiple storage units having a storage space allocated from a first number of storage devices among the multiple storage devices;
dividing the multiple storage units into at least one storage unit group based on a total number of the multiple storage devices and the first number, each storage unit group in the at least one storage unit group including a second number of storage units, wherein for each storage unit group in the at least one storage unit group, the storage unit group has a storage space allocated from a third number of storage devices among the multiple storage devices, the third number equaling the first number multiplied by the second number, wherein each storage unit within a single storage unit group has storage space allocated from a unique subset of the multiple storage device; and
storing, based on a logical address of to-be-stored data, the to-be-stored data into the at least one storage unit group.