Configure number of archives monitored for read-write errors

By default, PI Archive Subsystem stops writing time-series data to archive files after detecting an error when reading or writing data. This feature protects archive data. The Archive_DisableArchivingOnIOError tuning parameter enables this feature.

To set the number of archives monitored, specify a number in the Archive_DisableArchivingOnIOErrorRange parameter.

PI Archive Subsystem monitors the specified number of files for read-write errors, starting with the primary archive. For example, if set to 3 (the default value), PI Archive Subsystem monitors the primary archive plus the two previous archives. A value of 0 indicates that PI Archive Subsystem monitors all files.

Note: If PI Archive Subsystem loses its connection to the storage device where the primary archive resides, it does not try to reconnect to the archive. Data flows into the event queue, but is not stored in the archive file. To reconnect and store data in the archive, stop and restart the subsystem. For more information, see the Knowledge article Supported storage device types for PI Data Archive archive files.