MegaRAID Storage Manager Online Help System

Installing and Configuring an SNMP Agent on Linux

This section explains how to install and configure the SAS SNMP Agent for the SuSE Linux and Red Hat Linux operating systems. To do this, perform the following steps:

This procedure requires that you have Net-SNMP agent installed on the Linux machine. The RPM has not been created to support -U version. The RPM -U will probably fail with this RPM.

Install the LSI SAS SNMP Agent using rpm -ivh <sas rpm>.

After installation, find the SAS MIB file LSI-AdapterSAS.mib under the /etc/lsi_mrdsnmp/sas directory.

RPM makes the necessary modification needed in the snmpd.conf file to run the agent.

Before installation, check whether there is any pass command that starts with 1.3.6.1.4.1.3582 OID in snmpd.conf. If so, delete all of the old pass commands that start with 1.3.6.1.4.1.3582 OID. (This situation could occur if an earlier version of LSI SNMP Agent was installed in the system.)

The snmpd.conf file structure should be the same as lsi_mrdsnmpd.conf. For reference, a sample conf file (lsi_mrdsnmpd.conf) is in the /etc/lsi_mrdsnmp directory.
To run an SNMP query from a remote machine, add the IP address of that machine in the snmpd.conf file, as in the following example:
com2sec        snmpclient       172.28.136.112         public
In this example, the IP address of the remote machine is 172.28.136.112.
To receive an SNMP trap to a particular machine, add the IP address of that machine in the com2sec section of the snmpd.conf file.
For example, to get a trap in 10.0.0.144, add the following to snmpd.conf.
#              sec.name         source            community
com2sec        snmpclient       10.0.0.144         public
To run/stop the snmpd daemon, enter the following command:
/etc/init.d/snmpd start/stop
To start/stop the SAS SNMP Agent daemon before issuing a SNMP query, enter the following command:
/etc/init.d/lsi_mrdsnmpd start/stop
You can check the status of the SAS SNMP Agent daemon by issuing the following command:
/etc/init.d/lsi_mrdsnmpd status
Issue an SNMP query in this format:
snmpwalk -v1 -c public localhost .1.3.6.1.4.1.3582
You can get the SNMP trap from a local machine by issuing the following command:
snmptrapd -P -F "%02.2h:%02.2j TRAP%w.%q from %A %v\n"

To receive a trap in a local machine with Net-SNMP version 5.3, you must modify the snmptrapd.conf file (generally located at /var/net-snmp/snmptrapd.conf). Add "disableAuthorization yes" in snmptrapd.conf and then execute "sudo snmptrapd -P -F "%02.2h:%02.2j TRAP%w.%q from %A %v\n". It is assumed that snmpd.conf is located at /etc/snmp for Red Hat and /etc for SLES. You can change the file location from /etc/init.d/lsi_mrdsnmpd file.

You can install SNMP without the trap functionality. To do so, set the "TRAPIND" environment variable to "N" before running RPM.

Before you install a new version, you must uninstall all previous versions.

For SLES 10, perform the following steps to run SNMP:

Copy /etc/snmp/snmpd.conf to /etc/snmpd.conf.
Modify the /etc/init.d/snmpd file and change SNMPDCONF=/etc/snmp/snmpd.conf entry to SNMPDCONF=/etc/snmpd.conf.
Run LSI SNMP rpm.