Using the Event Monitoring Service (November 1999)

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resource dictionary A set of files
that provide to the registrar a
hierarchy of resources on the local
system and respective resource
monitors.
resource instance The actual
resources that can be monitored.
For example,
/net/interfaces/lan/status/lan0may
refer to a particular network
interface installed on the
monitored system. See resource
class.
resource monitor The process
that is used to obtain the status of
a resource and send event
notifications if appropriate. A
monitor checks resources on the
local system. The resource monitor
maps the physical resource into a
standard interface understood by
EMS.
resource path A full resource
path includes the resource class
hierarchy and instance.
S-T
SNMP (Simple Network
Management Protocol) Standard
protocol for network-based
retrieval of information about
system resources.
state The current value of a
resource (UP or DOWN). For some
resource instances, a monitor may
need to maintain a history of past
events or conditions in order to
know the resource value. In this
case, a monitor is said to be
maintaining state information.
Stateless monitors do not keep any
history of past conditions.
target The target application is
notifiedwhen a monitoredresource
reaches the condition for which
notification was requested. For
example,a target application could
be MC/ServiceGuard or
IT/Operations (ITO).
U-Z
volume group In LVM, a set of
physical volumes whose extents
are grouped together and then
made available to users as logical
volumes. A volume group can be
activated by only one node at a
time unless you are using
MC/LockManager.
MC/ServiceGuard can activate a
volume group when it starts a
package. A given disk can belong
to only one volume group. A logical
volume can belong to only one
volume group.