| 摘要 |
A buffer storage which stores some of the blocks, into which a main storage is divided, and, when a new block is to be stored, designates a block to be replaced based on least recently used logic designating the least recently used block as the block to be replaced. When the buffer storage is put in a state in which the designation of the block to be replaced is not carried out, it is detected and logic different from the least recently used logic is used to designate the block to be replaced, thereby preventing failure of designation of the block to be replaced and consequently a block is replaced. |
