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Chapter 6:Administering Geographic Clusters
Figure 61 Adding a geographic cluster
3.
Enter the following information:
Geographic Cluster Name
TTL
MX Exchanger
4.
Select the desired load balancing method:
5.
Specify the Load Balancing Responsiveness. This value controls how aggressively
Equalizer adjusts the site's dynamic weights. There are five responsiveness settings:
Slowest, Slow, Medium, Fast, and Fastest. The faster settings allow Equalizer to adjust
its load balancing criteria more frequently and permit a greater variance in the relative
weights assigned to sites. A slow setting causes site measurements to be averaged over
a longer period of time before they are applied to the cluster-wide load balancing and
tend to ignore spikes in cluster measurements caused by intermittent network glitches.
The Medium setting is recommended as a starting point.
88
The fully-qualified domain name (FQDN) of the geographic
cluster. For example,
must include all name components up to the top level (com, net,
org, etc). Do not include the trailing period.
Time-to-live. The length of time, in seconds, that the client's
DNS server should cache the resolved IP address. Longer times
will result in increased failover times in the event of a site
failure, but are more efficient in terms of network resources. A
reasonable value would be 120 (2 minutes).
The fully qualified domain name to be returned if Equalizer
receives a "mail exchanger" request for this geographic cluster.
The mail exchanger is the host responsible for handling email
sent to users in the domain.
Round Trip—the client's network proximity is weighted more heavily than other
criteria.
Adaptive—takes all available information into account when selecting a site.
This setting is a reasonable default.
Site Load—the current load at each site is weighted more heavily than other
criteria.
Site Weight—the user-defined static weight for each site is weighted more
heavily than other criteria.
www.coyotepoint.com
Equalizer Installation and Administration Guide
. The FQDN
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