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Manual Chapter: Monitoring the BIG-IP System
Manual Chapter
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The BIG-IP system provides a dashboard that you can use to monitor overall system performance and WAN Optimization performance. The dashboard displays system statistics graphically, showing gauges and graphs, and you can view the same statistics in a table view. Information is updated every three seconds.
You can display the dashboard by expanding WAN Optimization in the navigation pane and clicking Dashboard. The dashboard opens in a separate browser window.
Important: To run the dashboard, the computer on which you are working must have Adobe® Flash Player (version 9 or later) installed on it.
This chapter describes how to display the dashboard screens. The dashboard includes online help for information about how to interpret the statistics on each of the panels that appear on the screens. Click the ? in the upper right corner of any panel to display the online help.
The dashboard has a banner at the top of the screen, and four panels showing different types of information. The banner provides general information about the system you are logged on to, including the host name, serial number, model number, and version of the software. System alerts appear on the right of the banner, for example, if the chassis temperature is too hot or the fan is not operational.
Alerts preceded with a red status light indicate the most urgent problems, those preceded with a yellow status light indicate a warning or a potential problem, and a green status light means the system has no immediate alerts.
Each of the panels on the dashboard screens has a graph view, showing gauges, charts, graphs, buttons, and tabs, and many of the panels include a table view, showing detailed statistics in rows and columns. You can view the information in different ways, and adjust the view according to your personal preferences.
Figure 7.1 shows the Performance Overview screen of the dashboard.
You can view CPU usage, memory usage, connection types, and throughput statistics for the BIG-IP system on the dashboard.
1.
On the Main tab of the navigation pane, expand Overview and click Performance.
The Performance screen opens.
2.
On the menu bar, click Dashboard.
The Performance Overview screen of the dashboard opens. It may take a few seconds for the system to transfer data to the dashboard.
The CPU panel of the Performance Overview screen of the dashboard displays CPU statistics in a gauge, showing the busiest CPU; a chart, showing the busiest CPU, average CPU usage, and the least busy CPU; and a table view that shows details for each CPU including fan speed, temperature, and usage.
Figure 7.2 shows the graphic view of the CPU panel. The busiest CPU is using 89.1% of its CPU capacity on all system management and application tasks.
By clicking the grid icon in the upper left corner, you can display more details in a table format. Figure 7.3 shows the CPU panel table view.
The Memory panel of the Performance Overview screen displays the amount of total system memory that is currently in use. A chart breaks down memory usage into how much the Traffic Management Microkernel (TMM) is using for traffic management and how much is being used for all other processes, such as those for system configuration and monitoring.
Figure 7.4 shows the graphic view of the Memory panel. In this example, the Memory Usage gauge shows that 77.5% of the total system memory is currently in use.
The Breakdown chart in the figure shows that of the 4.1 GB of memory allocated on this BIG-IP system, processes other than TMM are using most of the memory. The Usage % chart shows memory usage over the last five minutes has been steady at about 77%.
The Statistics panel of the Performance Overview screen displays the total open TCP connections on the system, and separately lists new connections, SSL connections, and a view that shows the current values of open, new, and SSL connections at the same time.
Figure 7.5 shows the graphic view of the Statistics panel with the Open tab selected. It shows that during the last 5 minutes the system has had up to 32,000 open connections, and now it has 16,702 connections.
The Throughput panel of the Performance Overview screen summarizes the amount of traffic in bits per second that the system has handled during the time specified in the timeframe menu. It also separately shows HTTP compression throughput, and a view that shows the current, total, and compression throughput at the same time.
Figure 7.6 shows the graphic view of the Throughout panel with the Total tab selected. The total throughput on the system for the last 5 minutes ranges between about 510 Mbps and 900 Mbps.
You can use the dashboard to view bandwidth gain, virtual server usage by the WAN Optimization Module, optimization effectiveness, and details about remote endpoints.
1.
On the Main tab of the navigation pane, expand WAN Optimization and click Dashboard.
The Overview screen of the dashboard opens.
2.
In the upper right corner, click Overview and choose WAN Optimization Module.
The WAN Optimization screen of the dashboard opens (see Figure 7.7).
The top left panel of the WAN Optimization dashboard displays the amount of improved throughput for data transfers. You can view the bandwidth gain for the overall system or for specific types of traffic, including deduplication, compression, CIFS, and MAPI. For each type of traffic, you can separately view the bandwidth gain for data input and output.
Figure 7.8 shows a sample Bandwidth Gain panel for all data coming in from the WAN. The Current Ratio gauge shows a 7-to-1 gain: there is seven times the amount of raw data going to the LAN than optimized data coming from the WAN. The chart shows the WAN and LAN traffic for the last five minutes.
By clicking the grid icon in the upper left corner, you can display the same information in a table format. Figure 7.9 shows the Bandwidth Gain panel table view.
The Top Virtual Servers panel (top right on the dashboard) lists the virtual servers that are handling the largest percentage of traffic being optimized over the WAN (since the statistics were last cleared). Virtual servers on the WAN Optimization Module all have an iSession profile, and they generally manage different types of application traffic for specific services or ports. By looking at the virtual servers that are the busiest, you can tell what types of traffic have been sent between the two systems.
For example, a default virtual server called http_optimize optimizes HTTP traffic on port 80. If this is the top virtual server, predominant traffic on the system includes web pages and other HTTP traffic. Typically, the virtual servers that handle application traffic (such as HTTP, HTTPS, CIFS, MAPI, or any custom policy) show most activity on the initiating (client) side WAN Optimization Module. The virtual server called isession-virtual is a virtual server that complete the iSession connection; it shows most activity on the terminating (server) side WAN Optimization Module.
The Optimizations panel (lower left on the dashboard) displays the optimization effectiveness and breakdown for deduplication and CIFS, and displays the types of compression that the system used.
You can use a filter to view deduplication or compression optimization statistics for All endpoints, or you can select a particular endpoint for which to view optimization. The remote endpoint filter appears only if you have more than one remote endpoint configured on the WAN Optimization Module. You can apply the filter only to deduplication and compression statistics, not for CIFS traffic.
The Remote Endpoints panel (lower right on the dashboard) lists the remote BIG-IP systems that are running the WAN Optimization Module and with which the local WAN Optimization Module can communicate. For information about adding remote endpoints, refer to Managing remote endpoints.
Names of systems that are not in the Ready state are preceded by a red status light with an X. The WAN Optimization Module cannot reach these remote systems because, for example, they could be in the process of negotiating capabilities, the remote system could be offline, down, or authenticating, or authentication could have failed. If a system was never reachable from the local endpoint, the dashboard lists its IP address instead of its name in the first column.
Management IP
Displays the IP address that you use to log on to the Configuration utility of the remote endpoint.
Address
Displays the IP address that the local WAN Optimization Module uses to communicate with the remote system.
Version
Displays the software version that the remote endpoint is running.
Deduplication Cache
Displays the size of the deduplication storage in bytes allocated for the remote endpoint.
State
Displays the state of the remote endpoint at the current time, for example, Ready, Down, Authentication Failed, or Negotiating. If the system is not ready, its name is preceded by an orange status light on the dashboard.
Enabled
Displays True if the connection to the remote endpoint is set to Enabled on the local system; displays False if the connection to the remote endpoint is set to Disabled.
Origin
Displays whether the remote endpoint was added manually (Manually configured), discovered automatically using dynamic discovery (Discovered), or discovered automatically then saved manually (Manually saved).
Control Port
Displays the port on the remote endpoint used for the exchange of system information at the other end of the tunnel. The information the two WAN Optimization Modules exchange includes the advertised routes, software versions, and system capabilities.
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