SNMP traps for PowerFlex

“Quick quick, write it down before you forget!” <– What I always tell myself when I’m in the middle of figuring something out.

What you will need:

  • PowerFlex Gateway Server up and running – usually this should be already pre-installed in your environment
  • SNMP trap destination server. In my lab environment I’m using a Fedora 25 server for some reason.

First let’s get your SNMP trap destination server up and running:

yum install net-snmp-utils net-snmp-devel net-snmp

Edit the snmptrapd file and add in this option:

vim /etc/sysconfig/snmptrapd
# snmptrapd command line options
# '-f' is implicitly added by snmptrapd systemd unit file OPTIONS="-Lsd"
OPTIONS="-Lsd -Lf /var/log/snmptrapd.log -m ALL"

Save and quit (:x) and then check your default directories for your MIBs (you will need this later).

net-snmp-config --default-mibdirs
/root/.snmp/mibs:/usr/share/snmp/mibs

Next, log into your PowerFlex Gateway Server, and edit your gatewayUser.properties file:

vim /opt/emc/scaleio/gateway/webapps/ROOT/WEB-INF/classes/gatewayInternal.properties

Modify these two lines:

features.enable_snmp=true
snmp.traps_receiver_ip=<Destination IP>

Save and quit, (:x), and then make sure your MDM credentials are set properly:

./opt/emc/scaleio/gateway/bin/FOSGWTool.sh --set_mdm_credentials --mdm_user admin --mdm_password YourPWD --create_default_lockbox

Restart the Gateway service:

systemctl restart scaleio-gateway.service

While you are still in the /opt/emc/scaleio/gateway/webapps/ROOT/WEB-INF/classes/ path, copy the scaleio.mib file to your SNMP trap server destination host. (Ensure the destination path is correct as mentioned earlier).

scp scaleio.mib root@IP_of_SNMP_trap_server:/usr/share/snmp/mibs

Jump back over to your SNMP trap server, and restart the service (now that you have copied the MIB over, it will need a restart to load it).

[root@trap-server]# systemctl restart snmptrapd.service

Very that the snmptrapd service is now running, and listening on port 162:

systemctl status snmptrapd.service
netstat -nlp | grep 162

You may need to also check that your firewall is open on the host too, e.g.

firewall-cmd --zone=public --add-port=162/udp –-permanent
firewall-cmd --reload

Finally, you should now be able to see all of the SNMP traps from the system:

tailf /var/log/snmptrapd.log
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (501004) 1:23:30.04 SNMPv2-MIB::snmpTrapOID.0 = OID: SCALEIO-MIB::scaleioAEAlert SCALEIO-MIB::scaleioAlertSeverity = INTEGER: 3 SCALEIO-MIB::scaleioAlertType = STRING: "SDC.SDC.SDC_DISCONNECTED" SCALEIO-MIB::scaleioAlertSourceObjectId = STRING: "d1cb724e0000000a" SCALEIO-MIB::scaleioAlertActionCode = STRING: "SIO04.01.0000001"

Note: For some systems, you may also need the “EMC-MIB.MIB” file, please do contact Dell EMC support for this – https://www.dell.com/support/kbdoc/en-sg/497610

(Please note PowerFlex does not currently support SNMP polling / SNMPv3 traps, and we do not approve of users screaming at you)
About Matt Hobbs 9 Articles
APJ PowerFlex Presales for Dell Technologies - High performance software defined storage. "Enterprise grade storage that can also do HCI". Australian, married, 2 boys, based out of Singapore since 2008.

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