Installation guide

Appendix C. SNMP Operation & Definition
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The SAS RAID subsystem firmware-embedded Simple Network Management
Protocol (SNMP) agent for the connect array. An SNMP-based management
application (also known as an SNMP manager) can monitor the disk array. An
example of An SNMP management application is Hewlett-Packard’s Open View.
The firmware-embedded SNMP agent can be used to augment the RAID
controller if you are already running an SNMP management application at your
site.
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SNMP, an IP-based protocol, has a set of commands for getting the status of
target devices. The SNMP management platform is called the SNMP manager,
and the managed devices have the SNMP agent loaded. Management data is
organized in a hierarchical data structure called the Management Information
Base (MIB). These MIBs are defined and sanctioned by various industry
associations. Each type of device on your network has its own specific MIB file.
The MIB file defines the device as a set of managed objects — values that can
be read or changed by the SNMP manager. The MIB file enables the SNMP
manager to interpret trap messages from devices. To make sense out of a trap
that’s sent by a device, the SNMP manager needs to have access to the MIB
that describes the format and content of the possible traps that the device can
send. The objective is for all vendors to create products in compliance with
these MIBs so that inter-vendor interoperability can be achieved. To be
available for the SNMP manager, a command adds the MIB file for each of
devices to the MIB database. This enables the devices to be managed via the
SNMP manager.
The following figure illustrates the various components of an SNMP-based
management architecture.