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The primary goal of a maintenance plan is
to maintain integrity of the data collected. If you are successful in this regard, you
will always be able to recover from a service interruption and continue operations with
minimal or no loss of data. Since you can never ensure 100% system uptime, you must
frequently and regularly back up current data and configuration files, and maintain
non-current archive files in a read-only state. It is recommended that you use the
following guidelines for backup and routine maintenance.
Daily Maintenance
On a daily schedule, perform the following backup operations unless you use
ihArchiveBackup.exe to back up archives automatically.
Use the Historian Web Admin console to back up the current archive and most recent .IHA archived data file. This
preserves data collected up to this moment in time. You do not need to back up
any read-only archive files after they have been backed up once.
Use Windows Explorer to back up the .IHC file if it has been modified by anyone
(unless it is backed up automatically). This file contains all current
configuration information (tag configuration, archive configuration, and
collector configuration). Using this file, you can restore the system
configuration after an unplanned shutdown.
Historian