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Section 7 Configuring Archives
Overview
The archive function supports permanent offline storage for numeric process data
stored in history logs in 800xA History Server.
Without the archive function, when a history log becomes full, the oldest entries will
be overwritten by newer entries. When archiving is used, the contents of specified
logs are copied to a designated archive media to prevent the loss of critical historical
data.
Archive Media Supported
Two types of archive media are supported:
• A single Magnetic/Optical (MO) disk - With thi
s media, MO platters must be
removed and replaced as they become full.
•Hard disk
When the archive device is configured to backup full archive volumes to an ISO
image of the archive volume directory, the
mkisofs.exe application (located in
the
C:\Program Files(x86)\ABB Industrial IT\Inform
IT\history\bin
directory) must be excluded from Data Execution Prevention
(DEP) using one of the methods described in MSDN knowledge base article
875352.
The hard disk may be part
itioned into multiple volumes which are sized to
match CD ROM or DVD media. The archive backup function may be set up to
write the contents of archive volumes to ISO Image files as volumes become
full. The ISO image files may be burned onto CD ROM or DVD media for
permanent storage. As files are saved on the CD or DVD media, the file copies
on hard disk must periodically be purged to make room for new archive entries.
As an alternative, specify the archive backup function to create shadow copies
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