DFS0454I UNSUCCESSFUL ALTERNATE LOG DATASET POSITION---REASON x
Explanation
Dual input logs were specified for the Log Recovery utility. An error was detected while reading one of the input logs.
The
value of the reason code x is 2 or 3.
- Code (hex)
- Meaning
- 02
- Dual SLDS input was provided. The two SLDSs did not start with the same block of data. DFSULG20 processing has terminated for both input logs, but the block of data common to both logs was not successfully read.
- 03
- Dual input logs were provided. DFSULG10 tried to read the first block from each log to determine if the input was valid. For OLDS, the first pair of blocks must be readable and identical. For SLDS, the first pair of blocks must be readable. If the SLDS blocks are not identical, the higher log sequence number (for the first log record) is saved. Processing of that input log (and its corresponding output log) is suspended until the higher log sequence number is found on the other remaining input log.
System action
The Log Recovery utility terminates processing with a memory dump.
Programmer response
For reason code 02, examine the error block listing and the input logs. Try to determine why the matching block was not read. (The matching block is either an error block or is missing on the input log.) If the block is in error, correct the block using z/OS® system utilities. If the block is missing, provide all SLDS volumes as input. Then rerun the utility.
For reason code 03, use z/OS system utilities to examine the input logs. Correct the error and rerun the utility.