Restore an Archive

Before you begin

  • Before restoring an archive from a removable disk, copy the archive file to the normal archive path and then restore the archive from that location. Leave the original backup file in the backup file folder.
  • Ensure that the current archive is online.

About this task

Under certain circumstances, you may want to restore tag and alarms and events data to Historian. This may be after an unplanned shutdown, or you may need to retrieve data from an old, inactive archive.
Important: Restoring an archive is a resource-intensive operation and should be scheduled for non-peak usage times.

Archives that have been previously removed from Historian can be found in the \Archives\Offline directory.

Procedure

  1. Access Configuration Hub.
  2. In the NAVIGATION section, under the Configuration Hub plugin for Historian, select Archives.
    The Archives section appears.
  3. In the upper-right corner of the section, select .
    The Restore Archives window appears.
  4. Enter values as described in the following table.
    Field Description
    FILE LOCATION This field is populated with the value in the DEFAULT BACKUP PATH field of the data store. Append the name of the .zip file of the archive that you want to restore. The ARCHIVE NAME field is populated with the .zip file name that you enter.
    DATA STORE Select the data store in which you want to restore the archive.
  5. Select Restore.
    The archive is restored; it is moved to the Archive folder and is made available for querying.