Browse Prior Art Database

Reconfiguration of Non-Self-Determining Devices

IP.com Disclosure Number: IPCOM000102666D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 49K

Publishing Venue

IBM

Related People

Benignus, DM: AUTHOR [+3]

Abstract

This disclosure describes a technique for reconfiguring non-self-determining devices. Non-self-determining devices are not detectable by host software and include, for example, printers, plotters, and terminals.

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

Reconfiguration of Non-Self-Determining Devices

       This disclosure describes a technique for reconfiguring
non-self-determining devices.  Non-self-determining devices are not
detectable by host software and include, for example, printers,
plotters, and terminals.

      This process is predicated on a dynamic configuration process
that identifies the self-determining devices, and further, that the
past and present configuration records be maintained such that:
      1)   New devices are marked as "new".
      2)   Devices of the same type found in the same
      location are
           marked as being the "same" as previously detected.
      3)   Devices which are frequently added and deleted
      from the system are labeled as "don't care" so
      that the user does not
           have to be asked about their removal from the
      system.
           Portable disks are examples of devices which might
      be marked
           as "don't care".

      On the IBM Risc System 6000*, the configuration of
self-determining devices is performed by the configuration manager,
which initially sets all devices to "missing" unless they are marked
as "don't care".  The configuration manager then invokes a sequence
of programs that identify the devices in the current configuration.

      When a self-determining device has been moved from one location
to another there are two d...