After your reply, I did try and create a FileSystem template based
on UCD-SNMP-MIB because that one give the values as returned by
df. (I had to add "includeAllDisks 10%" to snmpd.conf.) However,
it messes up the figures on the filesystem status pages. So, then
I tried overriding the individual template for the filesystem and
that gives me a correct graph. ie. showing 100% full. Of course,
the status still shows the incorrect value.
It would be nice to be able to override the default FileSystem
template with UCD-SNMP-MIB values without messing up the status
pages. Would it be sufficient to add the relevant HOST-RESOURCES
data sources into the custom template?
It would work to add the usedBlocks data source from HOST-RESOURCES
to your custom templates. The alternative would be to update $ZENHOME/
Products/ZenModel/FileSystem.py so that it's methods could
intelligently return their results from the HOST-RESOURCES
totalBlocks & usedBlocks values, or the UCD-SNMP-MIB dskTotal &
dskUsed values.
The methods on the FileSystem class that are important:
totalBytes
usedBytes
freeBytes
capacity
We chose to use the HOST-RESOURCES MIB over the UCD-SNMP-MIB because
it is more standardized. It even works on Windows systems.
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