Product Documentation

Monitoring policy settings

Sep 03, 2017

The Monitoring section contains policy settings for process, resource monitoring, and application failure monitoring.

The scope of these policies can be defined based on the Site, Delivery Group, type of Delivery Group, organizational unit, and tags.

Policies for process and resource monitoring

Each data point for CPU, memory, IOPS, disk latency, and processes is collected from the VDA and stored on the Monitoring database. Sending the data points from the VDA consumes network bandwidth and storing them consumes considerable space on the monitoring database. If you do not want to monitor either resource data or process data or both for a specific scope (for example, a specific delivery group or organizational unit), it is recommended to disable the policy.

Enable process monitoring

Enable this setting to allow monitoring of processes running on machines with VDAs. Statistics such as CPU and memory use are sent to the Monitoring Service. The statistics are used for real-time notifications and historical reporting in Director.

The default for this setting is Disabled.

Enable resource monitoring

Enable this setting to allow monitoring of critical performance counters on machines with VDAs. Statistics (such as CPU and memory use, IOPS and disk latency data) are sent to the Monitoring Service. The statistics are used for real-time notification and historical reporting in Director.

The default for this setting is Enabled.

Note: The Monitoring Group Policies - Enable monitoring of application failures, Enable monitoring of application failures on Desktop OS VDAs, and Enable monitoring of application failures on Desktop OS VDAs are not functional in XenApp and XenDesktop version 7.14.

Scalability

The CPU and memory data is pushed to the database at 5-minute intervals; process data (if enabled) is pushed to the database at 10-minute intervals. IOPS and disk latency data are pushed to the database at 1-hour intervals.

CPU and memory data

CPU and memory data is enabled by default. The data retention values are as follows (Platinum license):

Data granularity

Number of Days

5 Minute Data

1 Day

10 Minute Data

7 Days

Hourly Data

30 Days

Daily Data

90 Days

IOPS and disk latency data

IOPS and disk latency data is enabled by default. The data retention values are as follows (Platinum license):

Data granularity

Number of Days

Hourly Data

3 Days

Daily Data

90 Days

With the data retention settings as above, approximately 276 KB of disk space is required to store the CPU, memory, IOPS and disk latency data for one VDA over a period of one year.

Number of machines

Approximate storage required

1

276 KB

1K

270 MB

40K

10.6 GB

Process data

Process data is disabled by default. It is recommended to enable process data on a subset of machines on a need basis. The default data retention settings for the process data is as follows:

Data granularity

Number of Days

10 minute Data

1 Day

Hourly Data

7 Days

If process data is enabled, with the default retention settings, process data would consume approximately 1.5 MB per VDA and 3 MB per Terminal Services VDA (TS VDA) over a period of one year.

Number of machines Approximate storage required VDA Approximate storage required TS VDA

1

1.5 MB

3 MB

1K

1.5 GB

3 GB

Note

The above numbers do not include the Index space. And all the above calculations are approximate and may vary depending on the deployment.

Optional Configurations

You can modify the default retention settings to suit your needs. However, this consumes extra storage. By enabling the settings below you can gain more accuracy in the process utilization data. The configurations which can be enabled are:

EnableMinuteLevelGranularityProcessUtilization

EnableDayLevelGranularityProcessUtilization

These Configurations can be enabled from the Monitoring Powershell cmdlet: Set-MonitorConfiguration

Storage planning tips

Group policy. If you are not interested in monitoring the Resource Data or Process Data, either or both can be turned off using the group policy. For more information, see the Group Policy section of Create policies.

Data grooming. The default data retention settings can be modified to groom the data early and free up storage space. For more information on grooming settings, see Data granularity and retention in Accessing data using the API.