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Foglight for Infrastructure 5.9.2 - User Guide

Using Foglight for Infrastructure Monitoring log files with Foglight Log Monitor Monitoring IBM PowerVM environments
Before you begin Managing PowerVM HMC agents Monitoring your PowerVM environment
Advanced system configuration and troubleshooting Reference
Advanced System Configuration Foglight for Infrastructure views Foglight Log Monitor views Rules Metrics
Appendix: Building regular expressions in Foglight

Host Monitor views

Purpose

These views display CPU, memory, and other system metrics, along with a series of views connected with graphical flows, illustrating the selected host’s performance. Explore these views when you want to investigate a selected host’s statistics in real time.

* 
TIP: The value of Processor Queue Length metric is color-coded to indicate the threshold severity. For generic information about metrics’ thresholds, see “Working with Metric Thresholds” in the Administration and Configuration Help.
TIP: The value of Available Paging Space metric is color-coded to indicate the threshold severity. For generic information about metrics’ thresholds, see “Working with Metric Thresholds” in the Administration and Configuration Help.

Purpose

Host Monitor views

These views display CPU, memory, and other system metrics, along with a series of views connected with graphical flows, illustrating the selected host’s performance. Explore these views when you want to investigate a selected host’s statistics in real time.

* 
TIP: The value of Processor Queue Length metric is color-coded to indicate the threshold severity. For generic information about metrics’ thresholds, see “Working with Metric Thresholds” in the Administration and Configuration Help.
TIP: The value of Available Paging Space metric is color-coded to indicate the threshold severity. For generic information about metrics’ thresholds, see “Working with Metric Thresholds” in the Administration and Configuration Help.

How to get here

1
On the Infrastructure Environment dashboard, click the tile reflecting the domain of the host that you want to drill down to. For example, to drill down on a Windows® host, click the Windows tile.
2
In the Quick View, in the left pane, select the host.
3
In the top-right corner of the Resource Utilizations view, click Explore.
The Host Monitor views appear in the display area.
 
* 
TIP: This view also appears when you drill down on a monitored host from the Hosts dashboard. For more information about this dashboard, see the Foglight User Help.

Description of embedded views

This view is made up of the following embedded views:

•
CPU
•
Data Flows
•
Disks
•
Memory
•
Network
•
Paging Files
•
System
CPU
 
Table 11. CPU view
Description

Displays the aggregate processor utilization percentage and the number of engines configured. Displays information about number of processors, processor queue length, the number of processes and top CPU consumers.

Data Displayed
•
Number of Processes: The number of processes that are waiting in the run queue.
•
Processor Queue Length: The number of processes that are either running or waiting in the queue. A high number of processes in the run queue means the CPU is busy. A consistently high number can indicate that host needs more CPU power.
•
Total CPU Usage: The percentage of time the CPU executes system code and user programs. This time includes both system and user time.
Where to Go Next

To drill down to CPU details, click any of the available metrics. For complete information about the CPU details that appear, see “Viewing A Host’s Performance” in the Foglight User Guide.

Data Flows
 
* 
NOTE: UnixAgents that monitor AIX hosts will not return data on Disk Reads or Disk Writes for logical disks. As a result, when you drill down for more information by clicking on the data flow view for Disk Reads or Disk Writes, the third column of charts, Logical_Disk Reads/Writes, will always show 'There is No Data to Display' for AIX hosts.
 
Table 12. Data Flows view
Description

Displays a collection of graphical flows, indicating how quickly the data is moving through the monitored host.

Data Displayed
•
Context Switches. The rate of switches from one thread to another. Thread switches can occur inside a single process or across processes. Context switches occur because one thread requests information from another or one thread is preempted by a higher priority thread.
•
Disk Reads. The rate at which the system reads data to disk. The unit of this value can be either of the following: c/s (count per second), k/s (thousand per second), m/s (million per second), g/s (billion per second), or t/s (trillion per second).
•
Disk Writes. The rate at which the system writes data to disk. The unit of this value can be either of the following: c/s (count per second), k/s (thousand per second), m/s (million per second), g/s (billion per second), or t/s (trillion per second).
•
Page In. The number of pages that the system reads from the disk every second, to resolve memory references to pages that were not in memory at the time of the reference. This counter includes paging traffic on behalf of the system cache to access file data for applications. Observe this rate if you are concerned about excessive memory pressure (called thrashing) and the excessive paging that might result.
•
Page Out. The number of pages that the system writes to the disk every second, after they are modified in the memory.
•
Total Receive. The rate at which the system is receiving data from the network, measured in megabytes per second. It includes all application data as well as network protocol information, such as packet headers.
•
Total Send. The rate at which the system is sending data to the network, measured in megabytes per second. It includes all application data as well as network protocol information, such as packet headers.
Where to Go Next

Drill down on:

•
Disk Reads or Disk Writes. Links to the Disk details view.
•
Page In or Page Out. Links to the Memory details view.
•
Total Receive or Total Send. Links to the Network details view.

For more information about these views, see “Viewing A Host’s Performance” in the Foglight User Guide.

Disks
 
* 
NOTE: UnixAgents that monitor AIX hosts will not return data on Disk Reads or Disk Writes for logical disks. As a result, when you drill down for more information by clicking on the Disks view, the third column of charts, Logical_Disk Reads/Writes, will always show 'There is No Data to Display' for AIX hosts.
 
Table 13. Disks view
Description

Displays the utilization of physical disks, the number of logical disks, and identifies the top logical disk consumers.

Data Displayed
•
Available. The amount of the logical disk space that is available for use.
•
Logical Disks. The number of logical disks used by the selected host.
•
Physical Disks. The number of physical disks used by the selected host.
•
Total. The total amount of the logical disk space, including available and used space.
•
Utilization. The percentage of time spent on servicing physical disk requests.
•
Used Space. The amount of the logical disk space that is currently in use.
Where to Go Next

Drill down on Used Space. Links to the Disk details view.

Drill down on Utilization. Links to the Storage Details view.

NOTE: The Foglight for Infrastructure agent only supports collecting the “Available” metric for ZFS® mounted as Loopback File Systems (LOFS), due to the limitation of the available commands within the zone.
The Disk Name was updated to include “(Loopback ZFS) after the disk name, to identify the Loopback ZFS. The Logical Disks table now includes two new columns, including “Available” and “Filesystem Type”.

For more information about these views, see “Viewing A Host’s Performance” in the Foglight User Guide.

Memory
 
Table 14. Memory view
Description

Displays the total amount of memory usage for the host, the top memory consumers and the top I/O consumers.

Data Displayed
•
Utilization. The percentage of memory that is currently in use.
•
Utilization History. The host’s memory utilization over the selected time range.
Where to Go Next

Drill down on Utilization or Utilization History. Links to the Memory details view. For more information about this view, see “Viewing A Host’s Performance” in the Foglight User Guide.

Network
 
Table 15. Network view
Description

Displays information about the existing network interfaces and network utilization in general.

Data Displayed
•
Bandwidth. The data transfer rate provided to the existing network interfaces.
•
Interface Utilization. The bandwidth of each network interface in bytes per second during the selected time range.
•
Network Utilization. The network utilization incurred by the monitored device, as a percentage of the total network utilization.
•
Packets Received. The number of inbound data packets that the device transmits with success over the selected time range.
•
Packets Sent. The number of outbound data packets that the device transmits with success over the selected time range.
Where to Go Next

Drill down on Network Utilization. Links to the Network details view. For more information about this view, see “Viewing A Host’s Performance” in the Foglight User Guide.

Paging Files
 
Table 16. Paging Files view
Description

This view displays the percentage of paging space that is currently available.

Where to Go Next

Drill down on Available Paging Space. Links to the Memory details view. For more information about this view, see “Viewing A Host’s Performance” in the Foglight User Guide.

System
 
Table 17. System view
Description

This view shows the number of alarms associated with the monitored device.

Data Displayed
•
Alarms. The counts of Fatal, Critical, and Warning alarms. Click a number to display the Outstanding Alarm(s) dialog box that lists the alarms. For more information about alarms in Foglight, see the Foglight User Help.
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