Patent ID: 11928053
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A system controller, comprising:
an interface configured to communicate with a plurality of solid-state disks; and
a processor coupled to the interface and configured to:
determine a first logical chunk group comprising a plurality of first data logical chunks, wherein the first data logical chunks are in the solid-state disks, wherein at least one of the first data logical chunks comprises valid data, wherein a location of the valid data is a first logical address of the first data logical chunks, wherein there is a first correspondence between the first logical address and an actual address of a first solid-state disk of the solid-state disks in which the valid data is stored, wherein the first logical chunk group further comprises a first check logical chunk distributed in a second solid-state disk that is different from the solid-state disks, and wherein the second logical chunk group further comprises a second check logical chunk distributed in a third solid-state disk that is different from the solid-state disks;
create a second logical chunk group comprising a plurality of second data logical chunks, wherein at least one of the second data logical chunks is distributed in the first solid-state disk;
allocate a second logical address in at least one of the second data logical chunks to the valid data; and
instruct the first solid-state disk to modify the first correspondence to a second correspondence between the second logical address and the actual address.