Part 2 – changing to flash response mode balancing – HP Multi-Site Traffic Director sa9200 User Manual

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C H A P T E R 4

HP Multi-Site Traffic Director Server Appliance SA9200 User Guide

Part 2 –
Changing to
Flash
Response
Mode
Balancing

Key Concepts

•

Flash Response Mode

•

Associating SA9200s with a site

Procedures

Now that the SA9200 is configured and functioning properly it is
time to modify the configuration to use Flash Response Mode
balancing instead of Weighted Round Robin.

Step 1. Associate SA9200s with a site.

Flash Response Mode works by sending DNS responses back to the
client from a source that is as close (network wise) as possible to the
address it is returning. Only the SA9200s are capable of sending
Flash responses.

HP SA9200/config/dns/isvgroups/westcoastsite#

flash-src 10.1.1.1

Primary Flash Src set to 10.1.1.1

HP SA9200/config/dns/isvgroups/eastcoastsite#

flash-src 10.1.2.1

Primary Flash Src set to 10.1.2.1

Step 2. Change the host balancing method to Flash
Response Mode.

HP SA9200/config/dns/zones/geo.mstd-ex.com/

hostnames/www# method flash

Load Balancing Method set to flash

Step 3. Commit the configuration changes.

Now that the changes are completed, save a snapshot and commit the
configuration. Note that now that a secondary SA9200 is online these
configuration changes are instantly propagated to the secondary
SA9200 (eastcoastsite) whenever the commit all command is
executed.