Browse Prior Art Database

Visual Alarm for Impending Problems on Automatic Cartridge Loaders

IP.com Disclosure Number: IPCOM000112764D
Original Publication Date: 1994-Jun-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Cummings, KD: AUTHOR [+2]

Abstract

An incremental visual alarm system is disclosed for magnetic tape drive systems with automatic cartridge loaders. The visual alarm is initially activated when operator intervention is required to prevent cessation of processing. A second level of alarm is provided when processing has ceased.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 61% of the total text.

Visual Alarm for Impending Problems on Automatic Cartridge Loaders

      An incremental visual alarm system is disclosed for magnetic
tape drive systems with automatic cartridge loaders.  The visual
alarm is initially activated when operator intervention is required
to prevent cessation of processing.  A second level of alarm is
provided when processing has ceased.

      In manually operated mainframe magnetic tape operations, full
utilization of the tape processing system is often a high priority.
One way that tape processing resources may be lost is for automated
cartridge loaders to either run out of input cartridges or fill the
output area with processed cartridges.  To maintain full utilization
of tape devices, operators must constantly inspect the input and
output areas of automatic cartridge loaders to insure that the input
area is not depleted and the output area is not filled.

      A second way that resources can be lost is when an input/output
port becomes a constrained resource.  If the tape transport unloads a
cartridge that is intended to be expelled from the system through an
input/output port, it may be prevented from doing so if a cartridge
already occupies the port.

      Many tape devices use an indicator light to alert the operator
to the cessation of processing due to conditions such as these.  Thus
system resources are lost while the operator notices the indicator
and travels to the device and resolves the condition.

     ...