ONTAP 9 Manuals ( CA08871-402 )

Create a DNS load balancing zone

You can create a DNS load balancing zone to facilitate the dynamic selection of a LIF based on the load, that is, the number of clients mounted on a LIF. You can create a load balancing zone while creating a data LIF.

Before you begin

The DNS forwarder on the site-wide DNS server must be configured to forward all requests for the load balancing zone to the configured LIFs.

About this task
  • Any data LIF can respond to DNS queries for a DNS load balancing zone name.

  • A DNS load balancing zone must have a unique name in the cluster, and the zone name must meet the following requirements:

    • It should not exceed 256 characters.

    • It should include at least one period.

    • The first and the last character should not be a period or any other special character.

    • It cannot include any spaces between characters.

    • Each label in the DNS name should not exceed 63 characters.

      A label is the text appearing before or after the period. For example, the DNS zone named storage.company.com has three labels.

Step

Use the network interface create command with the dns-zone option to create a DNS load balancing zone.

If the load balancing zone already exists, the LIF is added to it. For more information about the command, see the ONTAP 9 command reference.

The following example demonstrates how to create a DNS load balancing zone named storage.company.com while creating the LIF lif1:

network interface create -vserver vs0 -lif lif1 -home-node node1
-home-port e0c -address 192.0.2.129 -netmask 255.255.255.128 -dns-zone storage.company.com
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