Server OS Machines Test

Server OS Machines are VMs or physical machines based on the Windows Server operating system used for delivering applications or hosted shared desktops to users.

This test auto-discovers the Server OS Machines in the site and reports the session load on, resource usage of, and current state of each machine. This way, administrators can quickly identify machines that are experiencing heavy load and those that are consuming resources abnormally.

Target of the test : A Citrix Director 7.x

Agent deploying the test : An internal agent

Outputs of the test : One set of results for each server OS machine running in the XenDesktop broker site

Configurable parameters for the test
Parameter	Description
Test Period	How often should the test be executed. By default, this is set to 5 minutes.
Host	The IP address of the target SD-WAN appliance for which this test is to be configured.
Port	The port number at which the specified HOST listens to. By default, this is 80.
Controller IP Address	Specify the IP address of the delivery controller (i.e., broker) in the site with which the eG agent should communicate for collecting performance metrics.
Fully Qualified Domain Name, Username, and Password	To connect to a delivery controller in a site and pull out metrics from it, this test should be configured with the following: The Fully Qualified Domain Name of the domain to which the target controller belongs; The Username and Password of a user with the following permissions: Farm Administrator rights The Allow log on locally privilege on the delivery controller; the steps for assigning this privilege are explained in Pre-requisites for monitoring the Citrix Director 7.x The Interactive Logon permission on the delivery controller;
Confirm Password	Confirm the Password by retyping it here.
SSL	Indicate whether/not the controller used for metrics collection is SSL-enabled. By default, this flag is set to Yes.
Report by Delivery Group	If you want the results of this test to be grouped by delivery group then set this flag to Yes. In this case therefore, the delivery groups containing the server OS machines will be the primary descriptors of this test; expanding them will reveal the secondary descriptors - i.e., the server OS machines in each delivery group. If you want the results of this test to be indexed only by the names of the server OS machines, then set this flag to No.
Show Machines under Maintenance DD	By default, this flag is set to No. This means that, by default, this test will not report detailed diagnostics for the Maintenance mode enabled machines measure - i.e., you will not be able to view the list of machines that are under maintenance mode. To enable the ability of the test to collect and report the list of machines under maintenance, set this flag to Yes.
Show Unregistered Machines DD	By default, this flag is set to No. This means that, by default, this test will not report detailed diagnostics for the Unregistered machines measure - i.e., you will not be able to view the list of unregistered machines. To enable the ability of the test to collect and report the list of unregistered machines, set this flag to Yes.
DD Frequency	Refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time this test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD frequency.
Detailed Diagnosis	To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option. The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled: The eG manager license should allow the detailed diagnosis capability Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.

Measurements made by the test

Measurement

Description

Measurement Unit

Interpretation

Power state

Indicates the current power state of this server OS machine.

The values this measure can report and their corresponding numeric values are listed in then table below:

Measure Value	Numeric Value
Unknown	0
Unavailable	1
Off	2
On	3
Suspended	4
Turning on	5
Turning Off	6
Suspending	7
Resuming	8
Unmanaged	9

Note:

By default, this measure reports the Measure Values in the table above to indicate the power state of a server OS machine. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

Maintenance mode

Indicates whether/not this machine is in the maintenance mode currently.

The values this measure can report and their corresponding numeric values are listed in then table below:

Measure Value	Numeric Value
Off	0
On	1

Note:

By default, this measure reports the Measure Values in the table above to indicate whether/not a server OS machine is in the maintenance mode. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

Pending image update

Indicates whether/not image updates are pending on this machine.

The values this measure can report and their corresponding numeric values are listed in then table below:

Measure Value	Numeric Value
No	0
Yes	1

Note:

By default, this measure reports the Measure Values in the table above to indicate whether/not image updates are pending on this server OS machine. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

Is this physical machine?

Indicates whether this server OS machine is a physical or virtual machine.

The values this measure can report and their corresponding numeric values are listed in then table below:

Measure Value	Numeric Value
No	0
Yes	1

Note:

By default, this measure reports the Measure Values in the table above to indicate whether/not a server OS machine is a physical machine. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

Total sessions

Indicates the total number of user sessions on this server OS machine.

Number

This is a good indicator of the current session load on a server OS machine. Compare the value of this measure across machines to know which machine is overloaded with sessions.

Load evaluator index

Indicates the load evaluator index of this machine.

Percent

A server’s load index may be the aggregate of:

Various computer performance counter based metrics, namely CPU, Memory and Disk Usage
Session Count

It is designed to indicate how suitable a XenApp Worker is to receive a new user session. It is the Delivery Controller’s responsibility to calculate the load index based on the aggregate of the normalized load rule indexes generated by the various load rules. As only the Delivery Controller can determine the session load, a server’s overall load index is calculated on the Delivery Controller and not the Virtual Delivery Agent.

By comparing the value of this measure across server OS machines, you can figure out whether or not load is uniformly balanced across all servers in the site.

CPU

Indicates the CPU load evaluator index of this server OS machine.

Percent

A high value is indicative of excessive CPU usage by the machine over time.

Memory

Indicates the memory load evaluator index of this server OS machine.

Percent

A high value is indicative of excessive memory usage by the machine over time.

Disk

Indicates the disk load evaluator index of this server OS machine.

Percent

A high value is indicative of excessive disk usage by the machine over time.

Session count

Indicates the session count load evaluator index of this server OS machine.

Percent

A high value indicates that the machine has been consistently handling many user sessions.

Registration state

Indicates whether this server OS machine is registered or not.

The values this measure can report and their corresponding numeric values are listed in then table below:

Measure Value	Numeric Value
Unknown	0
Registered	1
Unregistered	2

Note:

By default, this measure reports the Measure Values in the table above to indicate whether/not each machine is registered or not. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.

Powered on machines

Indicates the number of machines in this delivery group that are currently powered on.

Number