Installation manual

56
1.4.2 SNMP Configuration
SNMP is a standard network protocol that provides the ability to monitor SNMP enabled systems from
anywhere on the network. Once configured, 3rd party MIB browsers on a Management Station can be used
to retrieve the current configuration and receive TRAP messages when significant events occur via the
Configuration Tool, SNMP is supported only for ATTO's ExpressSAS R644, R680, R608, R60F and R6F0
devices.
The ATTO SNMP agent has two modes, depending on your configuration. If the only SNMP agent on your server
is the ATTO agent, the mode should be
Enabled . If you have other SNMP agents running and you want them to
integrate their data into a single tree of information or if you want to use advanced SNMP features, choose
SubAgent mode (See SubAgent Mode on page 57).
Definitions
• SNMP - Simple Network Management Protocol
• Network Node - An addressable device
attached to a computer network.
• Management Station - The host system that
monitors network nodes.
• Trap - An alert that is sent to a management
station by agents.
• Agent - A software process on the system being
monitored that responds to queries using SNMP
to provide status and statistics about a network
node.
• SubAgent - A software process on the system
being monitored that responds to SNMP queries
from another agent, instead of a MIB browser.
The request from the other agent is generated
when it is contacted by a MIB browser.
Details
The ATTO SNMP agent supports protocol versions 1 and 2c. Communication with the agent requires UDP over
IPv4. The ATTO specific information can be found under “attotech” in the “enterprises” node (1.3.6.1.4.1.4547).
Read-only support is provided.
Enabled Mode
This mode of operation provides Management
Stations with basic information for the standard OID
tree, as well as the ATTO specific information. While
this mode will also work if a system service is installed
and running, the ATTO agent must be configured to
listen on a different port than the system service to
ensure both function properly. This mode is required to
support SNMP if the system SNMP service (such as,
Windows SNMP service or snmpd for OS X and Linux)
is not already running.