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Moving RRD file from 32bit to 64bit Architecture

When we were working on a nagios monitoring system we were migrating from a 32bit nagios to a 64bit Architecture.
Most of the graphs are not working as the RRD was from an older 32bit architecture.
Location of perfdata on nagios server. 
[root@nagios-server perfdata]# pwd 
/usr/local/nagios/share/perfdata
Error when we load the graph.
ERROR: This RRD was created on another architecture
This can re solved by converting the exsisting 32bit RRD to XML and then restoring into the new 64bit Architecture.

Creating a xml dump for rrd file.

rrdtool dump cpu_load.rrd > cpu_load.xml
Move the XML file to the new server (64bit)

Restore the XML file back.

rrdtool restore -f cpu_load.xml cpu_load.rrd
Testing if the RRD file is create fine, use below command. 
rrdtool info cpu_load.rrd
Now you should be able to see all the graphs on the server.
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