Method, device, and computer program product for reading data

An electronic device, comprising:

• a processor;
• and
• a memory coupled with the processor, the memory having instructions stored therein which, when executed by the processor, cause the device to perform acts comprising:
• in response to receiving a read request for target data, determining that the target data is stored in both a first storage device and a second storage device;
• determining at least one of reliability and access load for each of the first storage device and the second storage device;
• and
• determining, based on the at least one of the reliability and the access load, one of the first storage device and the second storage device as a target storage device so as to respond to the read request.

A computer program product having a non-transitory computer readable medium which stores a set of instructions to read data;

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• in response to receiving a read request for target data, determining that the target data is stored in both a first storage device and a second storage device;
• determining at least one of reliability and access load for each of the first storage device and the second storage device;
• and
• determining, based on the at least one of the reliability and the access load, one of the first storage device and the second storage device as a target storage device so as to respond to the read request.