Method, device and computer program product for transmitting data block

An electronic device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor and having instructions stored thereon, wherein the instructions, when executed by the at least one processor, cause the electronic device to perform actions comprising:
• receiving, from a client, a request for reading a data block;
• determining, at a data block layer, whether the data block needs to be compressed at a protocol layer based on a flag indicating whether the data block has been compressed and a storage size of the data block;
• transferring, in response to determining that the data block does not need to be compressed at the protocol layer, an indication that the data block does not need to be compressed at the protocol layer from the data block layer to the protocol layer;
• and
• sending the data block to the client through the protocol layer without compressing the data block at the protocol layer.

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

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• receiving, from a client, a request for reading the data block;
• determining, at a data block layer, whether the data block needs to be compressed at a protocol layer based on a flag indicating whether the data block has been compressed and a storage size of the data block;
• transferring, in response to determining that the data block does not need to be compressed at the protocol layer, an indication that the data block does not need to be compressed at the protocol layer from the data block layer to the protocol layer;
• and
• sending the data block to the client through the protocol layer without compressing the data block at the protocol layer.