A single-digit code from 0 to 7 that reflects the severity of the condition. The lower the number, the more serious the situation.
| Severity Level | Description |
|---|---|
| 0 – emergency | System is unusable. |
| 1 – alert | Immediate action required. |
| 2 – critical | Critical condition. |
| 3 – error | Error condition. |
| 4 – warning | Warning condition. |
| 5 – notification | Normal but significant condition. |
| 6 – informational | Informational message only. |
| 7 – debugging | Message that appears during debugging only. |