Is my application eligible for the LOGR subsystem?

You can use the LOGR subsystem to access log stream data for programs that conform to the following:

Use only BSAM or QSAM access methods.
Use only record lengths allowed by QSAM or BSAM in the log stream.
QSAM and BSAM access methods support up to approximately 32K record sizes while a log stream can use a record size up to 64K-4. Make sure that the log stream uses a record size compatible with the access method if you want to use the LOGR subsystem to read log stream data. See z/OS DFSMS Macro Instructions for Data Sets for more information about access methods.
Use only the following macros to access data:
- DCB
- DCBE
- RDJFCB
- OPEN
- GET (QSAM)
- READ (BSAM)
- CHECK (BSAM)
- TRUNC (BSAM)
- SYNADAF
- SYNADRLS
- CLOSE
Your program is NOT eligible for use with the LOGR subsystem if it uses the NOTE, POINT, and CNTRL macros.