The procedure below describes how to disable new Network Load Balancing (NLB) traffic handling for specified ports.
You can also perform the task described in this procedure by using Windows PowerShell. For more information about using Windows PowerShell for NLB clusters, see http://go.microsoft.com/fwlink/?LinkId=140180.
|To disable new Network Load Balancing traffic handling for specific ports by using the Windows interface|
To open NLB Manager, click Start, click Administrative Tools, and then click Network Load Balancing Manager. You can also open NLB Manager by typing Nlbmgr at a command prompt.
If NLB Manager does not already list the cluster, connect to the cluster.
Right-click a host or a cluster, and then click Control Ports.
To disable new traffic handling, click Drain.
To disable new traffic handling and stop Network Load Balancing, click Drainstop.
- When you are using Network Load Balancing
(NLB) Manager, you must be a member of the Administrators group on
the host that you are configuring, or you must have been delegated
the appropriate authority. If you are configuring a cluster or host
by running NLB Manager from a computer that is not part of the
cluster, you do not have to be a member of the Administrators group
on that computer.
- This procedure has no effect if the specified
hosts have not started cluster operations.
- Drain disables new traffic handling
for the rule that contains the specified port in the port range.
New connections to the specified hosts are not allowed but all
active connections are maintained. To disable active connections,
use the Disable command instead.
- Performing the drain command at the
cluster level drains the specified ports on all hosts within the
cluster. Performing the drain command at the host level
drains the ports on the specific host only.