CHECK(IBMIOS,IOS_CAPTUCB_PROTECT) determined that captured UCB protection is in the expected state. When enabled, captured UCB protection obtains captured Unit Control Blocks in protected storage and prevents storage overlays.
CAPTUCB PROTECT=YES has been specified if enabled, or CAPTUCB PROTECT=NO has been specified if disabled.
The expected state of captured UCB Protection can be changed by supplying a check parameter of PROTECT(YES) or PROTECT(NO).
The system continues processing.
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Input/output Supervisor (IOS)
IOSHCCHK
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