Manage Load on Server VDA

Load Management measures the server load and determines which server to select under the current environment conditions. When a user logs on to a Server OS machine, Load Management assigns the user to the server that is best suited to handle the request.

Instructions

Server load index:
A server's load index determines how likely a server delivering Server OS machines is to receive connections. It is the combination of 1) The number of sessions and 2)Settings for performance metrics such as CPU, Disk, and Memory use. Each multi-session server OS VDA machine has a calculated ‘load index’ value, and this load index can range from 0 to 10000, indicating a completely unloaded machine to a fully loaded machine that cannot run any more new sessions. The load index calculation is based on a number of factors. By default this is just the number of user sessions that are currently running on the machine, in relation to the configured maximum number of sessions, which in turn defaults to 250.However, other load measurements can be added in to this calculation by use of the HDX policy settings such as ‘CPU Usage’, ‘Disk Usage’ (disk queue length) and ‘Memory Usage’; in each of these cases the load factor is related to performance counter measurements on the VDA machine and their relationship to a target/threshold value for the counter as defined in the policy.

To change load management policy settings

1. In Studio, access the New Policy Wizard by selecting the Policy node.
2. Select the Categories node and then select Load Management. The load management settings described in the previous table appear.
3. Click Add to display the Edit Settings window.
4. By default, the setting is enabled. You can change the setting value.
5. To return the setting to its default, click Use default value.