公开(公告)号：DE3274540D1

公开(公告)日：1987-01-15

申请号：DE3274540

申请日：1982-06-23

Applicant: IBM

Inventor： MILLIGAN CHARLES ALLEN ,  WINARSKI DANIEL JAMES

IPC: B65H23/18 ,  B65H26/00 ,  G11B15/30 ,  G11B15/43 ,  G11B15/67 ,  G11B15/66

公开(公告)号：DE3274025D1

公开(公告)日：1986-12-04

申请号：DE3274025

申请日：1982-01-05

Applicant: IBM

Inventor： MILLIGAN CHARLES ALLEN ,  VIDEKI II EDWIN RAYMOND ,  YATES WINSTON FAY

IPC: G11B15/087 ,  G06F3/06 ,  G06F12/08 ,  G11B20/10 ,  G11B20/12

Abstract: An information-signal storage subsystem (10) has a plurality of addressable tape recorders (13) and a control unit (11), including a buffer (15). The control unit is connected to a plurality of host processors (12). Blocks of signals are transferred between the processors and the buffer and between the buffer and the tape recorders. Such blocks are counted in a block counter (52) and the counts stored in storage area (62, 64). Such counts may be compared with the physical location of a tape in a tape recorder, and may be retrieved by a host processor for use later to locate the blocks of signals and for error recovery purposes. In a buffered peripheral subsystem, such counts define current signal transfer status of the buffer.