Release 10.1A: OpenEdge Data Management:
Database Administration

BI Log

Displays status information for before-image logging. Figure 19–24 shows a sample BI Log Status display.

09/25/03       Status:BI Log 16:23 Before-image cluster age time:                   60 seconds Before-image block size:                         8192 bytes Before-image cluster size:                       512 kb (524288 bytes) Number of before-image extents:                  1 Before-image log size (kb):                      2168 Bytes free in current cluster:                   521177 (100%) Last checkpoint was at:                          09/25/03 13:56 Number of BI buffers:                            5 Full buffers:                                    0

Figure 19–24: PROMON BI Log Status display

The display contains the following fields:

Before-image cluster age time — The period of time that must pass before a BI cluster is reused. This period ensures that database blocks flushed at checkpoint are moved from the buffers on disk. When this occurs, the transaction is durably recorded on disk.
Before-image block size — The BI block size.
Before-image cluster size — The BI cluster size.
Number of before-image extents — The number of BI files.
Before-image log size (kb) — The size of the BI log file, in kilobytes.
Bytes free in current cluster — The number of free bytes remaining in the current BI cluster.
Last checkpoint was at — The time of the last checkpoint.
Number of BI buffers — The number of BI buffers.
Full buffers — The number of full BI buffers.