The Cluster Instances window displays details about memory and device
usage of all cluster instances in an cluster configuration.
Use the Cluster Instances window to gather information about memory usage, processes, user connections, and device I/O per instance of the cluster.
- In the Perspective Resources view, select a shared-disk
cluster, click the drop-down arrow, and click Monitor.
The Cluster Instances screen displays information pertaining to each cluster instance.
- Select Cluster Instances from the left pane.
- (Optional) Click the Details or Advanced tab at the bottom of
the screen to display more information about individual instances:
- Details – displays two charts,
Memory Usage and Processes. Memory Usage represents the memory (physical and
logical) and cache usage (procedure, statement and data) of a single cluster
instance. Processes gives a summary of running, blocking, and blocked
processes on a single cluster instance.
- Advanced – displays graphs Device
I/O per Sec, Active Connections, and Engine CPU Utilization. Device I/O per
Sec represents the reads and writes of the selected instance during a
certain time period. Active Connections represents the number of user
connections created on a selected instance during a certain time period.
Engine CPU Utilization represents the aggregate CPU utilization by all
engines of a selected instance.