Rockwell Automation FactoryTalk Historian SE 4.0 Installation and Configuration Guide - Manual (Page 101)

Configuring FactoryTalk Historian Chapter 5
Rockwell Automation Publication HSE-IN025A-EN-E–September 2013 101
setup program creates one archive file. Make sure that the location of
the archive directory contains enough free space for these files.
For new installations, the installation wizard calculates the default
archive size based on the physical memory that is available on the
computer. The recommended archive size will equal approximately
one-third of the physical memory. It will also never be smaller than
256 MB or greater than 8192 MB. The actual recommendation will
always be a power of 2.
Example
The physical memory available on the computer equals 8192 MB.
One-third of it equals 2730 MB.
The result will be rounded down to 2048 MB, which is a power of 2.
Conclusion: The recommended archive size on a computer with
8192 MB of the physical memory equals 2048 MB.
The default archive file size might be too small for most systems.
Rockwell Automation recommends that you change the default size
based on the number of Historian Points, according to the
recommendations in the
Introduction to Historian SE Server System
Management guide.
NOTE
The complete user documentation on FactoryTalk Historian SE is
available in the Common Files\Rockwell\Help folder in your
Program Files directory, and in the Redist\Docs folder on your
FactoryTalk Historian SE installation DVD.
The location for archives is typically on the largest drive on the
server. Rockwell Automation recommends that you change the
name of the archive directory from the default
Server\dat to a more
meaningful name, such as \arc.