Distributed FileManager/MVS diagnostic aids

The following diagnostic aids are provided for Distributed FileManager/MVS:

A description of errors:
- Basic error processing
- Resource problems
- System logic errors
- DDM data stream errors
- Unexpected source termination
- Communication errors
A description of messages:
- Distributed FileManager/MVS system messages
- DDM reply messages
A description of Distributed FileManager/MVS problem determination tools:
- Trace facility for Distributed FileManager/MVS
- TRACE command
- DFM trace options
- Formatting the DFM trace table
- IPCS dump formatting with SMSXDATA for DFM
- IPCS Messages
- Formatting LOGREC records
- Slip trapping for a specific reply message
- GTF tracing of input/output buffers
A description of Distributed FileManager/MVS server-diagnostic-information field (SRVDGN) data items
A description of implementation specific error codes:
- Distributed FileManager/MVS general error codes
- Distributed FileManager/MVS communications error codes
- Distributed FileManager/MVS agent error codes
- Distributed FileManager/MVS file/directory error codes
- Distributed FileManager/MVS locking error codes
- Distributed FileManager/MVS access method error codes