EMS HA Monitors Version A.02.00 Release Notes

4 Chapter 1
What’s in this Version
What’s in this Version
EMS contains the following:
• The disk monitor checks the status of LVM managed disks and detects
disconnected busses, power-failed or missing disks, and stale or missing mirrors.
It provides summary status for both physical and logical volumes in a volume
group as well as individual status for each disk, link and logical volume.
• The cluster monitor checks the status of clusters and detects failed clusters,
nodes, or packages for environments without ClusterView.
• The network monitor reports the status of LAN interfaces.
• The system resource monitor checks the status of users, system load, and file
system space.
• The EMS graphical interface runs under SAM and allows you to create, modify,
and remove monitoring requests. It also displays all current requests.
• The framework interprets requests to monitor resources and sends events to
system management software using the available protocols.
The EMS HA Monitors product enhances your high availability
environment:
• EMS monitors make it easier to monitor many systems with little or no human
intervention except to fix problems. For example, the disk monitor can detect
disk failure and loss of redundant data and send an event to a central location
where a person can interpret the event and fix the problem.
• EMS works with a wide range of system management tools. Because it supports
a variety of protocols (SNMP traps, TCP, and UDP), events can be sent to any
number of system management tools, including HP OpenView’s Network Node
Manager.
• In addition to sending events to system management software, the EMS HA
Monitors product is designed to work with MC/ServiceGuard to allow a more
flexible way of adding resources as package dependencies. The A.11.00 release
of MC/ServiceGuard supports configuring EMS resources as package
dependencies.
• The EMS framework allows you to add new monitors without having
to reinstall or reconfigure existing monitors. This includes custom
monitors you write to monitor your own applications.