Browse Prior Art Database

Automatic Reset of Workstation Controller After Failure

IP.com Disclosure Number: IPCOM000103502D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 1 page(s) / 32K

Publishing Venue

IBM

Related People

Green, PB: AUTHOR [+2]

Abstract

In the case where a user has multiple workstation controllers, he can recover from a microcode error by using a terminal on one of the workstation controllers that is still operational. When the customer specifies to recover (or 'vary on') the failed workstation controller, the failed controller will be 'reset' and the attached terminals will be available to the users within about a minute. This method allows this 'reset' of the failed controller to occur automatically when it is the only controller that is varied on.

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This is the abbreviated version, containing approximately 100% of the total text.

Automatic Reset of Workstation Controller After Failure

      In the case where a user has multiple workstation controllers,
he can recover from a microcode error by using a terminal on one of
the workstation controllers that is still operational.  When the
customer specifies to recover (or 'vary on') the failed workstation
controller, the failed controller will be 'reset' and the attached
terminals will be available to the users within about a minute.  This
method allows this 'reset' of the failed controller to occur
automatically when it is the only controller that is varied on.

      When the user only has one active workstation controller on his
system, and it fails, this method will force the failed workstation
controller to be automatically 'reset' immediately after the failure
is detected and failure analysis information is collected.  This
prevents the user from having to do a re-IPL of the entire system.
The user downtime is reduced from 15-60 minutes down to just a few
minutes.  Also, the likelihood of unnecessary hardware replacement is
reduced since the system does not have to be powered off, as it did
previously.

      Disclosed anonymously.