Buerger, Andreas 21.06.2007 18:05:
The SNMP query dfKBytesTotal returns negative output on some volumes
Hi Andreas.
dfKBytesTotal is deprecated.
Use OIDs 1.3.6.1.4.1.789.1.5.4.1.14 and .15, dfHighTotalKBytes and dfLowTotalKBytes. Add 2^32 to each snmp-value if the snmp-value is negative. To get total capacity in bytes: dfHighTotalKBytes * 2^32 + dfLowTotalKBytes * 1024
There are some other problems you may encounter when monitoring filers via snmp (apart from the fact that netapp still only supports snmp v1), so if you are planning to roll your own monitoring, have a look at the ManageONTAP™ SDK.
-Cornelius