HP Systems Insight Manager - Manual (Page 108)

NOTE: A group must have a network name and an IP address associated with it for you to access group
resources. A group can be owned by any node in the cluster and can be moved by users with administrative
rights for load balancing and other administrative purposes. When a failure takes place, the entire group
fails over, which prompts the cluster software to transfer all group resources and data to a different node in
the cluster. The resources and data in a transferred (failed over) group are still accessible under the same
network name and IP address, even after they have been moved to a different node.
Cluster Monitor resource thresholds
Cluster resources use thresholds to trigger Systems Insight Manager events. The Disk resource sets thresholds
for disk capacity, and the CPU resource sets thresholds for CPU utilization.
Disk capacity thresholds
Use the Disk resource to collect disk capacity data. To access the Cluster Monitor - Node Resource
Settings
page where the thresholds are set, select Options
→Cluster Monitor→Node Resource Settings.
The threshold values you enter in the Settings for the Selected Resource section define the Normal,
Minor, and Major ranges for disk utilization on monitored nodes.
For each disk, there are four thresholds in pairs. The Minor and Major thresholds are associated with a
corresponding reset threshold. Utilization enters the Major range when it equals or exceeds the Major
threshold value. It remains in the Major range until it falls to or below the Major reset value. Minor and
Major reset thresholds behave similarly.
You can specify different thresholds for each disk in each node of a cluster.
CPU utilization thresholds
Use the CPU resource to collect utilization data for CPUs in a cluster. To access the Cluster Monitor - Node
Resource Settings
page where the thresholds are set, select Options
→Cluster Monitor→Node Resource
Settings .
The threshold values you enter in the Settings for the Selected Resource section define the Normal,
Minor, and Major ranges for CPU utilization on the selected node.
For each CPU, there are four thresholds in pairs. The Minor and Major thresholds are associated with a
corresponding reset threshold. Utilization enters the Major range when it equals or exceeds the Major
threshold value. It remains in the Major range until it falls to or below the Major reset value. The Minor and
Major reset thresholds behave similarly.
You can specify different thresholds for each CPU in each node of a cluster.
Cluster resources supported by Systems Insight Manager
Systems Insight Manager supports the following Cluster Monitor resources:
•
Disk and CPU resources Monitor disk capacity and CPU utilization, respectively. You can set minor
and major thresholds for nodes in a cluster. When those thresholds are reached, Cluster Monitor creates
an Systems Insight Manager event. The event triggers associated e-mail and paging notification as
configured in Systems Insight Manager options.
•
System Monitors the system health of the cluster member.
Cluster Monitor states
NOTE: The cluster condition is Other when all nodes of a cluster are down.
Other Failed Degraded Normal List
The node status is
Unavailable or could not be
determined. The node status is down or
is trying to form or rejoin a
cluster. The node status is down, is
trying to reform or rejoin a
cluster, is operating as an The node status is an active
cluster member. Node
active member of a cluster
but cannot host resources or
108 Managing MSCS clusters