Browse Prior Art Database

Scan Initiation of File Transfer Operation

IP.com Disclosure Number: IPCOM000037026D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
Kiel, HG Peterson, RM [+details]

Abstract

Described is a method to optimize a file transfer operation from an independent workstation (IWS) to a host system via a workstation controller (WSC). Different scan codes (data sent from an IWS to a WSC) are used to approximate the data transfer size. WSCs no longer need to use the screen image of the IWS to transmit or receive data. Data are directly written to or read from IWS memory. This eliminates the need for the IWS to transfer the data between the screen image buffer and memory. As a result, the IWS services the file transfer request more efficiently. The performance of a system's WSC and its twinax interface overhead is one of the major contributors to a system's overall response time. This invention helps minimize the overhead to initiate file transfers.