Rockwell Automation 1756-HIST2G Historian ME 2.1 - Manual (Page 158)

F ACTORY T ALK H ISTORIAN ME M ODULE U SER ’ S G UIDE
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that occurs, click [Reboot] to reboot the module. When the archives are
checked again, no future timestamps will be found in the archive files and no
repair is needed.

Repair the archive file.
Click [Repair]. The following happens when an archive is repaired:

The current archive manager (piarstat.dat) is renamed to
piarstat.dat.backup
.

The current archive manager is deleted.

The snapshot data is deleted.

The archive manager is regenerated. If a primary archive entry exists in the
primary archive file, then the archive file is registered with this name as
the primary archive. If no primary archive entry exists in the primary
archive file, then a new primary archive is created.

A snapshot fix is performed.

PI is started except for piupdmgr.

All good remaining archive files are registered.

A new primary archive and backup for the bakup1 folder is created.

The piarstat.dat.backup is deleted.

The system is rebooted.
Once the archives are repaired, the system will be brought back to a normal state
during the next bootup.
If the module is rebooted and the Archive Repair page has not been refreshed,
clicking [Delete], [Reboot], or [Repair] again will result in a message telling the user
that there are no archives to repair and to go to the home or login page
.
Do not power off the module when repairing the archive files. If you power off the
module during the repair, the repair will not go through and you will need to go back to
the FactoryTalk Historian ME Web Diagnostics interface to repair the archives
.
Normally, when Running, the Running bit in AOP Input data value equals 1 and when
Shutdown, it equals 0. However, if the FactoryTalk Historian ME module is running in
safe mode, the Running bit toggles between 1 and 0.