US 11,669,245 B2
Method for managing storage devices, electronic device and computer-readable medium
Rongrong Shang, Beijing (CN); Geng Han, Beijing (CN); Xiaobo Zhang, Beijing (CN); Ruiyong Jia, Beijing (CN); and Xiongcheng Li, Beijing (CN)
Assigned to EMC IP Holding Company LLC, Hopkinton, MA (US)
Filed by EMC IP Holding Company LLC, Hopkinton, MA (US)
Filed on Mar. 26, 2020, as Appl. No. 16/831,340.
Claims priority of application No. 201910336148.5 (CN), filed on Apr. 24, 2019.
Prior Publication US 2020/0341649 A1, Oct. 29, 2020
Int. Cl. G06F 3/00 (2006.01); G06F 3/06 (2006.01)
CPC G06F 3/0608 (2013.01) [G06F 3/0631 (2013.01); G06F 3/0659 (2013.01); G06F 3/0689 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of managing storage devices, comprising:
combining storage devices in a redundant array of independent disks into a group of storage devices in an order of physical capacities of the storage devices;
determining a first number of sets of storage devices based on a number of storage devices in the group and a threshold number of storage devices to be divided into each of the sets; and
dividing, based on a configuration of the redundant array of independent disks, the group of storage devices into the first number of sets of storage devices, wherein storage devices contained in each set of storage devices within the first number of sets of storage devices are divided into fixed capacity slices of storage capacity that form a set of multiple stripes corresponding to the set, to optimize an effective capacity of the redundant array of independent disks, at least in part by generating a first allocation matrix based on the group of storage devices and a total number of different individual physical capacities of the storage devices in the group of storage devices, such that a number of rows in the first allocation matrix is equal to the total number of different individual physical capacities of the storage devices in the group of storage devices, wherein each one of the rows in the first allocation matrix corresponds to a respective one of the different individual physical capacities of the storage devices, and wherein a plurality of the storage devices have a same one of the different individual physical capacities.