METHOD, DEVICE AND COMPUTER FOR DATA OPERATION

摘要

A method, a device and a computer for data operation are provided, wherein the method includes that: when a writing data operation to a sector of a storage device is performed, whether the sector belongs to an original storage block of a reduction point of the storage device is judged; if yes, then a new storage block is allotted and the data is written into the new storage block; a table is created, the table includes: an address of the original storage block, an address of the new storage block and a first ID, the first ID has the first ID elements that respectively correspond to the sectors in the original storage block and the new storage block, each first ID element has a first status which represents reading the data from the original storage block when the data of the corresponding sector is resumed, and a second status which represents reading the data from the new storage block when the data of the corresponding sector is resumed; and the address of the original storage block in an address index list of the reduction point is pointed to the table; if no, then a new storage block is allotted and the data is written into the new storage block; and an address of the original storage block in an address index list of the reduction point is modified to an address of the new storage block. The solution of the invention can save the time of operating the sector of the reduction point of the storage device, and can improve the capability of the computer.