Method for buffer management in a disk drive having a first segment for storing burst data and a second segment used for write and read commands

摘要

When a write command is issued by a host computer data promptly transferred in response to the write command is stored in a write area of the data buffer. Thereafter, the start address of a read/write area is changed into the start address of the write area, data transferred from the host computer is stored in the data buffer to be sequential to the data stored in the write area. Thereafter, processing of sequentially the data stored in the read/write area in a magnetic disk is performed. When a read command is issued, the write area is set not to overlap the read/write area.