HP EMS HARDWARE S B6191-90028 manual Introduction

		Introduction
		Hardware Monitoring Overview
Table 1-1	Hardware Monitoring Terms
	Term	Definition
	Peripheral Status	Included with the hardware event monitors, the PSM is a
	Monitor (PSM)	monitor daemon that acts as a hardware status monitor by
		converting events to changes in hardware resource status.
		This provides compatibility with MC/ServiceGuard, which
		uses changes in status to manage cluster resources. Through
		the EMS GUI, the PSM is also used to create hardware
		status monitoring requests.
	Polling	The process of connecting to a hardware resource at regular
		intervals to determine its status. Any events that occur
		between polling intervals will not be detected until the next
		poll, unless the monitor supports asynchronous event
		monitoring.
	Predictive-enabled	See “multiple-view.” This feature enables hardware monitors
		to work with Predictive Support.
	Resource instance	A specific hardware device. The resource instance is the last
		element of the resource path and is typically the hardware
		path to the resource (e.g., 10_12_5.0.0), but it may also be a
		product ID as in the case of AutoRAID disk arrays. There
		may be multiple instances for a monitor, each one
		representing a unique hardware device for which the
		monitor is responsible.
	Resource path	Hardware event monitors are organized into classes (and
		subclasses) for creating monitoring requests. These classes
		identify the unique path to each hardware resource
		supported by the monitor. Two similar resource paths exist
		for each hardware resource—an event path used for creating
		event monitoring requests, and a status path used for
		creating PSM monitoring requests.

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