Administrator Guide

View DNS Servers and Suxes
View the current DNS servers providing name resolution services for the FluidFS cluster and the associated DNS suxes.
1. In the Storage view, select a FluidFS cluster.
2. Click the File System tab.
3. In the File System view, select Client Accessibility. The DNS panel displays the DNS servers and suxes.
Add or Remove DNS Servers and Suxes
Add one or more DNS servers to provide name resolution services for the FluidFS cluster and add associated DNS suxes. Adding
multiple DNS servers and suxes ensures continued name resolution services in the event of a DNS server failure. If the FluidFS
cluster cannot establish contact with the preferred server, it will attempt to connect to the remaining servers in order. Remove a
DNS server or DNS sux if it is no longer available or used.
1. In the Storage view, select a FluidFS cluster.
2. Click the File System tab.
3. In the File System view, select Client Accessibility.
4. In the DNS panel, click Edit Settings. The Edit DNS Settings dialog box opens.
5. To add a DNS server, type the IP address of a DNS server in the DNS Servers IP Addresses eld and then click Add.
6. To remove a DNS server, select it from the DNS Server IP Addresses eld and click Remove.
7. To add a DNS sux, type the DNS sux in the DNS Suxes eld and then click Add.
8. To remove a DNS sux, select it from the DNS Suxes eld and click Remove.
9. Click OK.
Change the Order of Preference for DNS Servers and Suxes
Change the order of preference for a DNS server or DNS sux. If the FluidFS cluster cannot establish contact with the preferred
server, it will attempt to connect to the remaining servers in order.
1. In the Storage view, select a FluidFS cluster.
2. Click the File System tab.
3. In the File System view, select Client Accessibility.
4. In the DNS panel, click Edit Settings. The Edit DNS Settings dialog box opens.
5. DNS servers are listed in descending order of preference.
• To increase the order of preference for a DNS server, select a DNS server and click Up.
• To decrease the order of preference for a DNS server, select a DNS server and click Down.
6. DNS suxes are listed in descending order of preference.
• To increase the order of preference for a DNS sux, select a DNS sux and click Up.
• To decrease the order of preference for a DNS sux, select a DNS sux and click Down.
7. Click OK.
Managing Static Routes
To minimize hops between routers, static routes are recommended in routed networks when the FluidFS cluster has multiple direct
paths to various routers. Static routes allow you to congure the exact paths through which the system communicates with various
clients on a routed network.
Consider the network shown in the following gure. The system can have only one default gateway. Assume that router X is
designated as the default gateway. Packets that are sent to clients in subnet Y are routed to router X, and are then sent back
(through the switch) to router Y. These packets travel through router X needlessly, reducing the throughput to all subnets in the
network.
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FluidFS Networking