Alibaba Group Holding Limited
METHODS, SYSTEMS, AND NON-TRANSITORY COMPUTER READABLE MEDIA FOR OPERATING A DATA STORAGE SYSTEM

Abstract:

The present disclosure provides methods, systems, and non-transitory computer readable media for operating a data storage system. The methods include receiving an I/O request to write a payload of data; encoding the payload of data, wherein the encoded data payload comprises a plurality of encoded data payload portions; selecting two or more secondary storage units from a plurality of secondary storage units coupled to the data storage system, wherein: the plurality of secondary storage units includes a first secondary storage unit that is being serviced, the first secondary storage unit, while being serviced, is not excluded from being selected as one of the two or more secondary storage units, and each of the encoded data payload portions are assigned to corresponding secondary storage units from the two or more secondary storage units; and sending the plurality of encoded data payload portions to the two or more selected secondary storage units for storage, wherein each encoded data payload portion is sent to the corresponding assigned secondary storage unit from the two or more selected secondary storage units.