Data Processing Method, Device, and System for Storage Unit

摘要

A data processing method, a device, and a system for a storage unit in order to avoid performing repeated data read operations on the storage unit where the method includes recording, by a first server for at least one storage unit used to store data, information about a storage unit in which a repairable fault occurs but repairing fails, querying, by the first server each time a request for reading data is received, whether the storage unit corresponding to the recorded information about the storage unit stores a part or all of the data, and when the storage unit corresponding to the recorded information stores the data, returning, to a requesting party that sends the request, a message indicating that reading the data fails, or otherwise, reading the data from a storage unit that stores the data, and feeding back the data to the requesting party that sends the request.

主权项

1. A data processing method for a storage unit, comprising:
recording, by a first server for at least one storage unit used to store data, information about the storage unit in which a repairable fault occurs but repairing fails; querying, when the first server receives a request for reading the data, whether the storage unit corresponding to the recorded information about the storage unit stores a part or all of the data; returning, to a requesting party that sends the request, a message indicating that reading the data fails when the storage unit corresponding to the recorded information about the storage unit stores the part or all of the data; reading the data from the storage unit that stores the data when the storage unit corresponding to the recorded information about the storage unit does not store the part or all of the data; and sending the data to the requesting party that sends the request when the storage unit corresponding to the recorded information about the storage unit does not store the part or all of the data.