Monitoring sensors on 2850 using snmp

[Billinghurst, David (CALCRTS)]

I am trying to access the temperature, fan, etc sensors on a
PE2850 system running RHEL3 U8 using snmp.

I have installed OMSA 5 from the yum repository
  srvadmin-jre-5.0.0-463
  srvadmin-isvc-5.0.0-463
  srvadmin-cm-5.0.0-463
  srvadmin-omilcore-5.0.0-463
  srvadmin-iws-5.0.0-463
  srvadmin-diagnostics-1-0
  srvadmin-deng-5.0.0-463
  srvadmin-racsvc-5.0.0-463
  srvadmin-ipmi-5.0.0-463.rhel3
  srvadmin-racdrsc4-5.0.0-463
  srvadmin-omhip-5.0.0-463
  srvadmin-hapi-5.0.0-463
  srvadmin-base-1-0
  srvadmin-omacore-5.0.0-463
  srvadmin-racadm4-5.0.0-463
  srvadmin-rac4-1-0
  srvadmin-all-1-0
  srvadmin-storage-5.0.0-463
  srvadmin-web-interface-1-0
  srvadmin-odf-5.0.0-463
  srvadmin-rac4-components-5.0.0-463
  srvadmin-old-5.0.0-463

I have also installed the net-snmp packages
  net-snmp-utils-5.0.9-2.30E.20
  net-snmp-libs-5.0.9-2.30E.20
  net-snmp-5.0.9-2.30E.20
  net-snmp-libs-5.0.9-2.30E.20
  net-snmp-devel-5.0.9-2.30E.20
  net-snmp-perl-5.0.9-2.30E.20


So far I can: 
 - see the sensors using the OMSA web interface
 - see the sensors with ipmitool, for example
     ipmitool sensor list
     ipmitool sensor get "Ambient Temp"
 - use snmpget to access localhost, for example
     snmpget -v 2c -c public localhost sysUpTime.0

I can't work out how to access the onboard sensors.
>From the dell.com SNMP reference material it seems that 
that the MIB files 10892.mib and dcs3fru.mib are important.
These files are in /opt/dell/srvadmin/omsa/mibs but I can't
see how snmpd is configured to use them

	David


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