Release 10.1A: OpenEdge Data Management:
Database Administration

Checkpoints

Displays information about checkpoints. Figure 19–47 shows a sample Checkpoints display.

09/25/03        Checkpoints 16:19:34 Ckpt                           ------   Database Writes    ------ No.   Time     Len   Dirty     CPT Q    Scan      APW Q    Flushes   0   10:01:54 0         0        0       16         0     1244340

Figure 19–47: PROMON Checkpoints display

This display shows the following information:

Ckpt. No. — The sequential number assigned to the checkpoint.
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.