Thanks for the response.
This is 7-mode - apologies for not stating that.
monsnmpTimeout is 60.
I tried snmpbulkwalk -c public -v 2c <host> volTable, but got
volTable: Unknown Object Identifier (Sub-id not found: (top) -> volTable)
If I try snmpbulkwalk -c public -v 2c <host> system, I get a response that looks reasonably accurate.
I'm not very vluent with snmp - not sure if the above is what you meant by "Does the externam snmpbulkwalk on volTable show the volume?", and I'm not sure what you mean by enabling a testpoint?
The last few lines of dfmcmd.log show my refreshing the host system, then nothing else:
Jul 27 10:54:42 [dfm: INFO]: [7696:0x2b475d2b0100]: Refreshing data from host <host> (3801) now.
Jul 27 13:34:16 [dfm: INFO]: [7730:0x2b22a96c5100]: Refreshing data from host <host> (3801) now.
Jul 29 08:31:34 [dfmconfig: INFO]: [2583:0x2b12e4843100]: No configurations were found.
I think another admin was doing some work on snmp with the controllers; I think this problem may predate that, but for now DFM is reporting that snmp is down. I will followup there.