Fault history files
Fault history files are PDS or PDSE data sets that contain information about faults that have been analyzed by Z Abend Investigator. Fault entries, which are stored as separate members in the history file, contain the following type of information:
- Real-time analysis key information, such as abend code and failing program name
- Execution environment details, such as job name, system ID, and date and time when the fault occurred
- Associated real-time analysis report (if applicable)
- Saved minidump (if applicable)
- Name of associated MVS dump data set (if applicable)
- Via the Z Abend Investigator ISPF interface. Click File > Change Fault History File Settings from the action-bar pull-down menu option. For more information, see Change fault history file settings.
- Via the HFZUTIL batch utility. For more information, see Managing history files (HFZUTIL utility).
The sequence numbering starts at 1 and is incremented by 1 for each new fault entry created. When the sequence number reaches 99999, it wraps back to 1. If a given fault ID already exists, then the next available fault ID is assigned.
- By using the Z Abend Investigator ISPF interface. Click File > Change Fault History File Settings from the action-bar pull-down menu option. For more information, see Change fault history file settings.
- By using the HFZUTIL batch utility. For more information, see Managing history files (HFZUTIL utility).
Although a history file can be either a PDS or a PDSE data set, PDSE data sets are recommended because they provide concurrent member write capability which is not possible with PDS data sets. Z Abend Investigator provides better sharing and performance when using PDSE history files, and allows the history file to be managed by the IDIS subsystem, (see "Caching of history file $$INDEX data").
You can view fault entry details, browse the real-time analysis report, start batch and interactive fault reanalysis, or delete fault entries from an interactive display of a history file. These actions are described in The Z Abend Investigator ISPF interface.
A view member can be created in a data set identified by the HFZVIEWS DDname that contain the names of any number of history files that you want to display simultaneously using the Z Abend Investigator ISPF interface. For details, see Using views.