Apparatus and method for controlling tape movement in a rotary head data storage system and retrieval system

摘要

A method is provided for controlling movement of a tape in a data storage and retrieval system having a tape roller servo subsystem for controlling movement of a tape, and a head servo subsystem for controlling position of a head element mounted on a rotatable carriage unit. The method includes receiving, from the head servo subsystem, a head element position feedback signal at the tape roller servo subsystem; and controlling movement of the tape by the tape roller servo subsystem based, at least in part, on the head element position feedback signal.

主权项

1. A method of controlling movement of a tape in a data storage and retrieval system having a tape roller servo subsystem for controlling movement of the tape, and a head servo subsystem for controlling position of a head element movably mounted on a rotatable carriage unit, the method comprising:
receiving, from the head servo subsystem, a head element position feedback signal at the tape roller servo subsystem; and controlling movement of the tape by the tape roller servo subsystem based, at least in part, on rate of change of the head element position feedback signal; wherein the head servo subsystem is operable to radially position the head element with respect to the rotatable carriage unit by moving the head element with respect to the carriage unit.