How to Enable or Disable Entities in NetScaler MAS

The Network Functions feature allows you to enable or disable the various load balancing entities in NetScaler MAS. The entities are:

  • Virtual servers
  • Services
  • Service Groups
  • Application on backend Servers

You can enable or disable a single entity or multiple entities. For example, a single virtual server or several virtual servers at once. You can also search for a particular virtual server by entering the expressions in the search box. Perform the enable or disable operation on all the virtual servers displayed after the search operation.

Enabling entities in NetScaler MAS

In NetScaler MAS, you can enable virtual servers and services that are in “Out of Service” state. Enable service groups and the application servers that are in “Disabled” state. When you enable an entity, you can save the configuration of the instance with which the entity is related. Reload the saved configuration on the instance if there is an operational anomaly.

To enable a virtual server or a service in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Virtual Servers/Services.

  2. Select the virtual server or the service which is in “Out of Service” state, and click Enable.

  3. Click OK.

To enable a service group or a server in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Service Group/Server.

  2. Select the virtual server or the application server which is in “Disabled” state, and click Enable.

  3. Click OK.

Disabling entities

NetScaler MAS supports graceful shutdown of services. That is, a service is disabled only when the server or the client closes all the current active client connections. Services remain in a transitionary out of service state until all active connections are closed. To use this feature, you have to manually disable the NetScaler instance entities. When you gracefully shut down a service or a service group, you can make sure that existing connections to those entities are processed to completion but no new connections are established.

When you disable an entity, you can save the configuration of the instance with which the entity is related. Also, when you disable a service or a service group, you must specify the time in seconds after which, no new connections are established with that service, and existing connections to that service are terminated. You can also gracefully shut down a service or a service group before disabling them.

To disable a virtual server in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Virtual Servers.

  2. Select the virtual server you want to shut down, and click Disable.

  3. On the Disable Virtual Server page, as an option, select Save Configuration.

  4. Click OK.

To disable a service in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Services.

  2. Select the service you want to shut down, and click Disable.

  3. On the Disable Service page, you can perform the following three options:

    1. (optional) Enable the check box to gracefully shut down the service.

    2. Save the running configuration.

    3. Specify a value in the Time in seconds field.

  4. Click OK.

To disable a service group in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Service Group.

  2. Select the service group you want to shut down, and click Disable.

  3. On the Disable Service page, you can perform the following three options:

    1. (optional) Enable the check box to gracefully shut down the service.

    2. (optional) Save the running configuration.

    3. (optional) Specify a value in the Time in seconds field.

    4. Click OK.

To disable a server in NetScaler MAS:

  1. In NetScaler MAS, navigate to Applications > Dashboard > Load Balancing > Servers.

  2. Select the application server you want to shut down, and click Disable.

  3. On the Disable Server page, as an option, select Save Configuration.

  4. Click OK.

    Note

    You are NetScaler MAS to confirm every time you want to disable a service or a virtual server.

    Tip

    The following entities support the save instance configuration feature when they are either enabled or disabled:

    • Networks > Network Functions > Load Balancing > Virtual Servers

    • Networks > Network Functions > Load Balancing > Virtual Servers > Bound Services

    • Networks > Network Functions > Load Balancing > Virtual Servers > Bound Service Groups

    • Networks > Network Functions > Load Balancing > Services

    • Networks > Network Functions > Load Balancing > Services > Bound Virtual Servers

    • Networks> Network Functions> Load Balancing> Service Groups

    • Networks > Network Functions > Load Balancing > Service Groups > Bound Virtual Servers

    • Networks > Network Functions > Content Switching

    • Networks > Network Functions > Cache Redirection

    • Networks > Network Functions > Authentication

    • Networks > Network Functions > GSLB > Virtual Servers

    • Networks > Network Functions > GSLB > Services

    • Networks > Network Functions > NetScaler Gateway

How to Enable or Disable Entities in NetScaler MAS