Problem Determination in a Parallel System Using a Single Logical Trap P2
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Brown, JC: AUTHOR [+4]
A method is disclosed which allows the establishment of one logical trap in an MVS/ESA(1) sysplex with multiple parallel MVS/ESA systems running.
Problem Determination in a Parallel System Using a Single
A method is
disclosed which allows the establishment of one
logical trap in an MVS/ESA(1) sysplex with multiple parallel MVS/ESA
sysplex is a structure for parallel system environment.
Problem determination in this environment is complex since an error
can occur on any of the systems, yet it may affect the function of
the entire sysplex or any portion thereof. Moreover, diagnosing a
problem requires problem determination data from multiple systems.
In many cases once these problems occur, it is not possible to
diagnose the cause of the problem based on the information collected
at the time of failure. To diagnose the cause of the failure, there
is a need to identify typical conditions for the failure, let the
systems monitor for these conditions, and then take an action when
these conditons occur (such as producing tailored diagnostic data or
putting systems in manual states in which a human operator can then
diagnose the problem online). This process is generally referred to
as the setup of traps. There are existing mechanisms to set traps on
a single system (e.g., the SLIP facility in MVS). However, for
parallel systems, as the number of the systems becomes large, this
process becomes very cumbersome and error prone and some traps may
have to be modified whenever systems are reinitialized (IPL).
The solution to this problem is to produce a single logi...