Coyote Point Systems E350GX, Руководство по установке и администрированию

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Working with GeoClusters
Equalizer Installation and Administration Guide 247
3. The GeoCluster Configuration tab is displayed:
The
default site warning
is displayed on this screen until you select a default site; see “Displaying and
Modifying Site Information” on page 251.
The GeoCluster configuration parameters are explained in the table below:
responsiveness
This value controls how aggressively Equalizer adjusts the site’s dynamic
weights. Equalizer provides five response settings:
slowest , slow ,
medium , fast , and fastest . Faster settings enable Equalizer to adjust
its load balancing criteria more frequently and permit a greater variance
in the relative weights assigned to sites. Slower settings cause site
measurements to be averaged over a longer period of time before
Equalizer applies them to the cluster-wide load balancing; slower
settings also tend to ignore spikes in cluster measurements caused by
intermittent network glitches. We recommend that you select the
medium setting as a starting point.
DNS
cache ttl
The cache time-to-live, which is 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. The default is 120
(that is, 2 minutes).
MX exchanger
The fully qualified domain name (e.g., ‘mail.example.com’) to be
returned if Equalizer receives a “mail exchanger” request for this
GeoCluster. The mail exchanger is the host responsible for handling
email sent to users in the domain. This field is not required.