Browse Prior Art Database

Customer Diagnostic Cartridge

IP.com Disclosure Number: IPCOM000111730D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Haunsperger, MJ: AUTHOR [+2]

Abstract

This disclosure provides a method that can verify the operating integrity of a tape device automatically. It gives the ability to predetermine pending failure conditions that may not occur until critical backup situations have begun processing. This gives an overall higher customer satisfaction level with the tape device operation.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Customer Diagnostic Cartridge

      This disclosure provides a method that can verify the operating
integrity of a tape device automatically.  It gives the ability to
predetermine pending failure conditions that may not occur until
critical backup situations have begun processing.  This gives an
overall higher customer satisfaction level with the tape device
operation.

      This invention, a diagnostic cartridge, provides an automated
method of reliably verifying a tape device's save/restore operation.
Host system intervention is not required, leaving the time that might
otherwise be used on tape device diagnostics to be used on other
system level operations.

      Imbedded programs within the tape device will be able to
utilize the diagnostic cartridge without any pre-programming or
external initiated action to the tape device.  With the diagnostic
cartridge the drive can test or check the entire data path, from the
data buffer area all the way through the Read/Write electronics to
the tape media and from the tape media back through the Read/Write
electronics to the data buffer.

      Diagnostic cartridge recognition can be accomplished by a
physically unique cartridge identification which is sensed once the
cartridge is inserted into the tape device or by identification data
pre-written on the tape which is read automatically once this
cartridge is inserted.

      A tape log is maintained at the beginning of tape.  This tape
log contains an updated count of the number of times the diagnostic
cartridge has been used, total number of re...