SEQPDL parameter
Minimum PDL available for sequencer
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Summary
- Default value
- 4096
- Parameter type
- System
- Where set
- User 0 parameter line
- Related products
- All? ?
- Introduced
- Model 204 version 7.?
Description
The SEQPDL parameter controls the amount of free space that must be present in the users Push Down List in order for the SOUL sequencer to proceed with the next quad code. The new default is 4096 bytes. The old value was 1024 bytes. The maximum value is 8192 bytes. SEQPDL is a system level parameter and can only be set on User 0's parameter line. With 1024 bytes there were edge cases where abends would break files. This is an attempt to allow enough PDL space so that all of the lower level journaling routines can run in error condition without breaking files. Users who have their UTABLE commands LPDLST values very close to the maximum requred in the past for their applications may need to increase that value in order that ERROR 2126 USER'S PUSHDOWN LIST OVERFLOWED is avoided.