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Data Monitoring - Application Server Assignments

To identify the servers that host the application port traffic, assign a server subnet or server to an application. If you have created domains to separate TCP traffic from duplicate IP addresses, you can assign server subnets and servers from a particular domain.

When changing the assigned servers and subnets, you must select an item to assign it. If you clear a check box, the item is unassigned.

Domain

Click Apply to All (entire domain) to automatically assign new servers as a monitoring device observes matching application traffic.

If you have created domains to separate TCP traffic from duplicate IP addresses, clicking this option assigns all matching servers in the currently selected domain. If you have not defined domains, this option assigns all matching servers monitored by the management console.

Subnets

Use the Show menu to view All Available or Assigned server subnets, or click Add New Subnet to create a new application subnet and assign it to the application.

Frequently Asked Questions

• Why create an application subnet? You can reuse your existing server subnets or create an application subnet that more closely aligns with the actual servers that host an application. Keep in mind that server subnets enable the management console to automatically monitor application traffic, but an application subnet, which closely aligns with a particular application, enables the management console to reliably monitor an application as its host resources change.
• Why is my application subnet not listed? You can reuse your existing application and server subnets. However, if you delete all of the applications that are associated with an application subnet, the management console automatically deletes the application subnet.

Property Details

Complete the following fields:

Subnet

Specifies the name of the server subnet.

Address/Mask

Specifies the IP address and subnet mask.

Type

Indicates where the subnet was created:

Server

A server subnet that is defined for standard data monitoring.

Application

An application subnet that is defined for a particular application.

Bytes

Lists the total amount of application traffic, in bytes, across the server subnet, in the last 7 days.

Use this information to find your busiest servers.

Last Seen

Displays a timestamp of the most recent 5-minute interval during which the management console reported application traffic on any server.

If the Last Seen status is Inactive, the management console did not collect data for the application in the past 7 days.

To collect data, the application must meet the database threshold for Network Round Trip Time observations.

Servers

Use the Show menu to view All Available or Assigned servers, and assign one or more servers to the application.

Frequently Asked Questions

• When should I assign servers instead of a server subnet? If the IP addresses of the servers that host an application are going to stay the same, or you cannot create an application subnet that describes the range of IP addresses, assign the actual servers that host the application. Otherwise, create an application subnet.

Property Details

Complete the following fields:

Server

Displays the host name of the server.

Address

Displays the IP address of the server.

Monitor Device

Displays the assigned monitor feed on the corresponding CA Standard Monitor or CA Multi-Port Monitor.

Bytes

Lists the total amount of application traffic, in bytes, across all servers, in the last 7 days.

Use this information to find your busiest servers.

Last Seen

Displays a timestamp of the most recent 5-minute interval during which the management console reported application traffic on a server.

If the Last Seen status is Inactive, the management console did not collect data for the application in the past 7 days.

To collect data, the application must meet the database threshold for Network Round Trip Time observations.

Availability Monitoring

If you are planning to monitor the availability of the application, and a load-balancer distributes the application traffic between servers, specify the minimum number of servers that must be available.

Complete the following fields:

Servers support the application in a load balanced farm

Click this option to monitor the availability of a load-balanced application. If this option is grayed, click Properties and enable application availability monitoring.

Minimum servers required for the application to be considered available

Specify the minimum number of servers that must be available for the management console to rate the application as Available.

More information:

Manage Console Settings

How Availability Monitoring Works