This parameter specifies the level of trace that should be generated when redo logs are archived.
| Version | Type | Default | Session Modifiable |
System Modifiable |
| 8.1.6 | Integer | 0 | No | Immediate |
| 8.1.7 | Integer | 0 | No | Immediate |
| 9.0.1 | Integer | 0 | No | Immediate |
| 9.2.0 | Integer | 0 | No | Immediate |
| 10.1.0 | Integer | 0 | No | Immediate |
| 10.2.0 | Integer | 0 | No | Immediate |
The value of the parameter indicates the level of trace to be generated:
| Level | Description |
| 0 | Disabled (default) |
| 1 | Track archival of redo log file |
| 2 | Track status of each archivelog destination |
| 4 | Track archival operational phase |
| 8 | Track archivelog destination activity |
| 16 | Track detailed archivelog destination activity |
| 32 | Track archivelog destination parameter changes |
| 64 | Track ARCn process state activity |
| 128 | Track FAL server related activities |
| 256 | Track RFS Logical Client |
| 512 | Tracks LGWR redo shipping network activity |
| 1024 | Tracks RFS physical client |
| 2048 | Tracks RFS/ARCn ping heartbeat |
| 4096 | Tracks real-time apply activity |
| 8192 | Tracks Redo Apply activity (media recovery or physical standby) |