A data processing method wherein the method comprises: recording, by a first server for at least one storage medium used to store data, information about a storage unit in said storage medium in which a repairable fault occurs but repairing using backup data from a secondary server fails; querying, when the first server receives a request for reading data, whether the storage unit corresponding to the recorded information stores a part or all of the data; and if the storage unit corresponding to the recorded information stores the part or all of the data, returning, to a requesting party that sends the request, a message indicating that reading the data fails; if the storage unit corresponding to the recorded information does not store the part or all of the data, reading the data from a storage unit that stores the data, and feeding back the data to the requesting party that sends the request; characterized in that the method further comprises: querying, when the first server determines to send data to any server, whether the storage unit corresponding to the recorded information stores a part or all of the data that is to be sent; and if the storage unit corresponding to the recorded information does store the part or all of the to-be-sent data, sending, by the first server, an indication message to a server of a receiving party, so as to indicate that a repairable fault occurs but repairing fails in the storage unit that stores the part or all of the data that is to be sent; if the storage unit corresponding to the recorded information does not store the part or all of the to-be-sent data, sending, by the first server to a server of a receiving party, the data that is to be sent. recording, by a first server for at least one storage medium used to store data, information about a storage unit in said storage medium in which a repairable fault occurs but repairing using backup data from a secondary server fails; querying, when the first server receives a request for reading data, whether the storage unit corresponding to the recorded information stores a part or all of the data; and if the storage unit corresponding to the recorded information stores the part or all of the data, returning, to a requesting party that sends the request, a message indicating that reading the data fails; if the storage unit corresponding to the recorded information does not store the part or all of the data, reading the data from a storage unit that stores the data, and feeding back the data to the requesting party that sends the request; characterized in that the method further comprises: querying, when the first server determines to send data to any server, whether the storage unit corresponding to the recorded information stores a part or all of the data that is to be sent; and if the storage unit corresponding to the recorded information does store the part or all of the to-be-sent data, sending, by the first server, an indication message to a server of a receiving party, so as to indicate that a repairable fault occurs but repairing fails in the storage unit that stores the part or all of the data that is to be sent; if the storage unit corresponding to the recorded information does not store the part or all of the to-be-sent data, sending, by the first server to a server of a receiving party, the data that is to be sent. querying, when the first server determines to send data to any server, whether the storage unit corresponding to the recorded information stores a part or all of the data that is to be sent; and if the storage unit corresponding to the recorded information does store the part or all of the to-be-sent data, sending, by the first server, an indication message to a server of a receiving party, so as to indicate that a repairable fault occurs but repairing fails in the storage unit that stores the part or all of the data that is to be sent; if the storage unit corresponding to the recorded information does not store the part or all of the to-be-sent data, sending, by the first server to a server of a receiving party, the data that is to be sent.