| 摘要 |
A data storage method and device, and data reading method and device, the storage method comprising: a server receives a write request for data (S102); upon being triggered by the write request, the server writes the data to a sector of a local virtual hard disk (VHD) file and stores the data (S104). The method and device solve the problems of RAW format occupying a large amount of disk space, inconvenient backup, and not supporting a sub-mirror, thus enabling allocation of disk space as needed, convenient backup, and supporting a snapshot and sub-mirror. |
