| Name | Description | |
|---|---|---|
 | ArchiveStatistics Constructor |
Proficy Historian Client Access API
The following tables list the members exposed by ArchiveStatistics.
| Name | Description | |
|---|---|---|
| ArchiveStatistics Constructor |
| Name | Description | |
|---|---|---|
 | AverageCompressionRatio | Ratio of compressed writes since server startup (1 - Uncompressed / TotalEvents). |
| AverageEventRate | The observed event rate for the last minute (events/minute). |
| FreeSpaceMB | The available free space in the current archive expressed in MB. |
| MaximumCompressionRatio | The maximum compression ratio across all tags since server startup. |
| MaximumEventRate | The greated observed event rate since server startup (events/minute). |
| MinimumCompressionRatio | The minimum compression ratio across all tags since server startup. |
| MinimumEventRate | The smallest observed event rate since server startup (events/minute). |
| PredictedDaysToFull | The approximate number of days to fill the current archive. |
| SpaceConsumptionRate | The calculated disk space consumption rate expressed as MB/day. |
| TotalAlerts | The total number of alerts stored since server startup. |
| TotalEvents | The total number of events recorded since server startup. |
| TotalFailedWrites | The total number of refused write attempts since server startup. |
| TotalMessages | The total number of messages stored since server startup. |
| TotalOutOfOrder | The total number of out-of-time-sequence events recorded since server startup. |
| WriteCacheHitRatio | Ratio of writes satisfied by the cache since server startup (1 - ExpensiveWrites / TotalEvents). |
