The following table lists the types of events that trigger an SNMP Agent trap.
Events
Description
Acute failure detected.
All operations in a storage system stopped.
Serious failure detected.
Operation in a component where a failure occurred
stopped.
Moderate failure
detected.
Partial failure.
Service failure detected.
Minor failure.
An SNMP Agent logs the most recent 10,000 traps, so you can see the trap history of a
particular device.
SNMP Agent operations
Operations that an SNMP Agent can perform fall into the categories GET REQUEST,
GETNEXT REQUEST, GETBULK REQUEST, and TRAP.
The following table describes the types of SNMP Agent operations.
Operation
Description
GET
REQUEST
Obtains a specific MIB object value.
GET REQUEST is the request from an SNMP Manager, and GET RESPONSE
is the agent's response to that request.
GETNEXT
REQUEST
Continuously finds a MIB object.
GETNEXT REQUEST is the request from an SNMP Manager, and GET
RESPONSE is the agent's response to that request.
GETBULK
REQUEST
Continuously finds specified MIB objects only.
GETBULK REQUEST is the request from an SNMP Manager, and GET
RESPONSE is the agent's response to that request.
TRAP
Reports an event (failure) to an SNMP Manager.
TRAP occurs without a request from the SNMP Manager.
SNMP Agent reported errors
Several different types of errors can be reported when GET REQUEST, GETNEXT
REQUEST, and GETBULK REQUEST operations are sent to an SNMP Agent.
The following table describes the errors that can be reported and suggests corrective
action.
SNMP Agent operations
Chapter 6: SNMP overview
Hitachi Alert Notification Guide for VSP5000 Series
40