Method, device and computer program product for coordinating access operations

A device for coordinating access operations for a redundant array of independent disks (RAID), comprising:

• at least one processing unit;
• at least one memory coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit, the instructions, when executed by the at least one processing unit, causing the device to perform acts including:
• obtaining first statistical data of a first set of access operations associated with a first storage resource pool in the RAID and second statistical data of a second set of access operations associated with a second storage resource pool in the RAID, the first set of access operations including a background access operation and a user access operation, and the second set of access operations including at least a user access operation;
• determining, based on the first and second statistical data, availability of a memory shared by the first and second storage resource pools;
• and
• adjusting, based on the availability of the memory, the background access operation in the first set of access operations so as to control a capacity of the memory occupied by the background access operation.

A computer program product having a non-transitory computer readable medium which stores a set of instructions to coordinate access operations for a redundant array of independent disks (RAID);

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• obtaining first statistical data of a first set of access operations associated with a first storage resource pool in the RAID and second statistical data of a second set of access operations associated with a second storage resource pool in the RAID, the first set of access operations including a background access operation and a user access operation, and the second set of access operations including at least a user access operation;
• determining, based on the first and second statistical data, availability of a memory shared by the first and second storage resource pools;
• and
• adjusting, based on the availability of the memory, the background access operation in the first set of access operations so as to control a capacity of the memory occupied by the background access operation.