During nucleus initialization program (NIP) processing, an attempt was made to OPEN a partitioned data set extended (PDSE), reason-code is 1, or an extended format data set, reason-code is 2. PDSEs cannot be OPENed early in NIP processing.
The system continues processing.
Notify the system programmer.
If the data set is a PDSE, provide a PDS in its place. If the data set in an extended format data set, provide a non-extended format data set in its place. Then re-IPL the system. If the failure persists, contact the IBM® Support Center.
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