SNMP data not converted correctly

[it_admin]

Hi,

We have quite a large SAN and when we monitor the size using SNMP we get this:
Received value [-832618880] is not suitable for value type [Numeric (unsigned)] and data type [Decimal]

In fact what we get from SNMP is more like:
HOST-RESOURCES-MIB::hrStorageSize.43...

[theepan]

I'm running Zabbix Agents on several Windows Servers (64bit, 2008+) and they all overflow at some point when querying net.if.in[nic] and net.if.out[nic]:

Fri May 8 12:31:56 EEST 2015 2005196881
Fri May 8 12:32:02 EEST 2015 2527914095
Fri May 8 12:32:07 EEST 2015 3053020449...