Progress
Database Administration
Guide and Reference
Other Displays>Checkpoints
Displays information about checkpoints. Figure A–37 shows a sample Checkpoints display.
Figure A–37: PROMON Checkpoints Display
This display shows the following information:
- Ckpt. No. — Progress assigns a number to each checkpoint sequentially.
- Time — The time the checkpoint began.
- Len — The length of time required to complete the checkpoint.
- Dirty — The number of modified blocks scheduled to be written.
- Database Writes CPT Q — The number of blocks written from the checkpoint queue by the APWs.
- Database Writes Scan — The number of blocks written by the APWs during the scan cycle.
- Database Writes APW Q — The number of blocks written by the APW queue and replaced on the least recently used (LRU) chain by APWs.
- Database Writes Flushes — The total number of blocks not written during the checkpoint that had to be written all at once at the end of the checkpoint.
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