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![]() VSAM index trap z/OS DFSMSdfp Diagnosis SC23-6863-00 |
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VSAM has an index trap that checks each index record before writing it. The index trap is on by default. The index
trap can be deactivated by the console
command:
To
restart it after disabling it:
To
query status:
The trap catches the more common index breakages, but not all breakages:
The trap prevents a broken index, but the documentation generated might not be sufficient to determine the source of the problem. If the trap hits:
If the data set is being shared properly, the systems programmer should:
Note: IBM Health
Checker for z/OS® VSAM provides
a check, VSAM_INDEX_TRAP, which ensures that the VSAM index trap is
enabled and notifies users with an exception message if it is not
enabled. When this check is active, it will be run once the IBM Health Checker for z/OS is started and once every
24 hours while IBM Health Checker
for z/OS is active.
For more information on IBM Health Checker for z/OS, see IBM Health Checker for z/OS: User's Guide. ![]() ![]() ![]() |
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