This section explains how to configure a single namespace on your Qumulo cluster to configure round-robin DNS on a domain controller running Windows Server 2008 R2 (or higher).

Step 1: Confirm that Round-Robin DNS Support is Enabled

  1. In the Microsoft Management Console (MMC), ensure that the DNS Manager snap-in is installed.

  2. Click Start > Administrative Tools > DNS, right-click DNS, and then click Properties.

  3. Click Advanced and ensure that round-robin DNS is enabled.

Step 2: Add DNS Entries for Each Remote Desktop Session Host Server

  1. In the DNS Manager snap-in, expand your server name, then Forward Lookup Zones, and then your domain name.

  2. Right-click a zone and then click New Host (A or AAAA).

  3. For Name, enter the hostname (virtual name) for clients that connect to your Qumulo cluster.

  4. Enter the first floating IP address for one of the nodes in your cluster.

  5. Repeat these steps for each floating IP address that belongs to a node in your cluster.

Step 3: Configure the Time to Live (TTL) for DNS Requests to Your Cluster

To ensure that client connections to your cluster are balanced evenly, you must provide a single namespace for your cluster. To do this, configure your DNS server to send a different IP address for each DNS request for your Qumulo cluster.

For example, you can set the TTL for each record to 0, to allow each DNS lookup for your Qumulo cluster to yield one of the four configured IP addresses.

  1. In the DNS Manager snap-in, click View > Advanced and open your records for editing.

  2. Configure the TTL for each record.