Dell PowerVault ME5 Series Administrator's Guide

DNS settings

You can set a domain hostname for each controller module to identify it for management purposes by configuring settings in the DNS panel (Settings > Network > DNS). The DNS server name supports IPv4 and IPv6 formats, and the system supports a maximum of three DNS servers per controller. Configuring the storage system to communicate with a DNS server within your network allows network changes, such as frequent IP address changes in a DHCP environment, to occur without interrupting notifications sent by the system to users.

The controller will advertise the domain hostname to DNS servers, and the DNS servers will in turn create and advertise a fully qualified domain name (FQDN) for the controller by appending the domain hostname to the DNS domain string that identifies the controller. The hostname must differ for each controller.

• The maximum domain name length is 63 characters.
• The domain name can contain alphanumeric characters and hyphens, but not periods.
• The domain name must not begin with a number, hyphen, or period; nor should it end with a hyphen.
• The domain name is not case sensitive.

After a reachable DNS server is configured on the system, you can configure an SMTP server using a name such as mysmtpserver.example.com. Further, you could configure search domain example.com and SMTP server mysmtpserver and reach the same destination.

You must use this feature to configure DNS parameters before you configure system parameters in any environments where DNS will be required to resolve server names.

If the controller is able to look up the domain name from a DNS server, the FQDN for each controller is also shown.