Method, device and computer program product for backing up data

A device for backing up data, comprising:

• at least one processing unit;
• at least one memory, coupled to the at least one processing unit and storing instructions executed by the at least one processing unit, the instructions, when executed by the at least one processing unit, cause the device to perform acts, the acts comprising:
• determining a first number of data streams for sending target data;
• causing the target data to be sent to a buffer via the first number of data streams;
• determining a second number of data streams for sending the target data from the buffer to a server based on a transmission parameter associated with transmission of the target data to the buffer and a capability of the server for receiving data from the buffer;
• and
• causing the target data to be sent from the buffer to the server via the second number of data streams.

A computer program product, tangibly stored on a non-transitory computer-readable medium and comprising machine-executable instructions, which, when executed, cause a machine to perform operations, the operations comprising:

• determining a first number of data streams for sending target data;
• causing the target data to be sent to a buffer via the first number of data streams;
• determining a second number of data streams for sending the target data from the buffer to a server based on a transmission parameter associated with transmission of the target data to the buffer and a capability of the server for receiving data from the buffer;
• and
• causing the target data to be sent from the buffer to the server via the second number of data streams.