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.

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