Data transfer management system for managing burst data transfer

摘要

A system for managing burst data transfers from a sending device to the buffer memory (40) of a receiving device (13) and for managing read operations upon the buffer memory (40) after receiving data. In one arrangement, the system includes data management apparatus (46) that is used in a tape storage device (13). The data management apparatus (46) uses a Start of Burst pointer, a Current Position pointer and a Tape Mechanism pointer to simplify several functions. These functions include the determination of whether to enable a burst from a sending device and the determination of whether to perform a series of read operations upon the buffer memory (40). In addition, the Start of Burst pointer and the Current Position pointer are used to re-write a burst into the buffer memory (40) if a previously received burst is determined to be invalid. <IMAGE>