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CLOUDSTACK-893 conceptual info around gslb

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unknown 2013-05-10 19:43:29 +05:30 committed by radhikap
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docs/en-US/gslb.xml
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@ -157,29 +157,15 @@
</section>
<section id="gslb-workflow">
<title>Configuring GSLB</title>
<para>A GSLB deployment is the logical collection of GSLB virtual server, GSLB service, LB
virtual server, service, domain, and ADNS service. To create a GSLB site, you must configure
load balancing in the zone. You must create GSLB vservers and GSLB services for each site. You
must bind GSLB services to GSLB vservers. You must then create an ADNS service that provides
the IP address of the best performing site to the client's request. A GSLB vserver is an
entity that performs load balancing for the domains bound to it by returning the IP address of
the best GSLB service. A GSLB service is a representation of the load balancing/content
switching vserver. An LB vserver load balances incoming traffic by identifying the best
server, then directs traffic to the corresponding service. It can also load-balance external
DNS name servers. Services are entities that represent the servers. The domain is the domain
name for which the system is the authoritative DNS server. By creating an ADNS service, the
system can be configured as an authoritative DNS server.</para>
<para>To configure GSLB in your cloud environment, as a cloud administrator you must perform the
following.</para>
<para>To configure such a GSLB setup, you must first configure a standard load balancing setup
<para>To configure a GSLB deployment, you must first configure a standard load balancing setup
for each zone. This enables you to balance load across the different servers in each zone in
the region. Then, configure both NetScaler appliances that you plan to add to each zone as
authoritative DNS (ADNS) servers. Next, create a GSLB site for each zone, configure GSLB
virtual servers for each site, create GLSB services, and bind the GSLB services to the GSLB
virtual servers. Finally, bind the domain to the GSLB virtual servers. The GSLB configurations
on the two appliances at the two different sites are identical, although each sites
load-balancing configuration is specific to that site.</para>
<para>Perform the following as a cloud administrator. As per the above example, the
the region. Then on the NetScaler side, configure both NetScaler appliances that you plan to
add to each zone as authoritative DNS (ADNS) servers. Next, create a GSLB site for each zone,
configure GSLB virtual servers for each site, create GLSB services, and bind the GSLB services
to the GSLB virtual servers. Finally, bind the domain to the GSLB virtual servers. The GSLB
configurations on the two appliances at the two different zones are identical, although each
sites load-balancing configuration is specific to that site.</para>
<para>Perform the following as a cloud administrator. As per the example given above, the
administrator of xyztelco is the one who sets up GSLB:</para>
<orderedlist>
<listitem>
@ -200,7 +186,9 @@
>Configuring an Authoritative DNS Service</ulink>.</para>
</listitem>
<listitem>
<para>Configure a GSLB site with site name formed from the domain name details.</para>
<para>Configure a GSLB site with the site name formed from the domain name.</para>
<para>As per the example given above, the site names are A.xyztelco.com and
B.xyztelco.com.</para>
<para>For more information, see <ulink
url="http://support.citrix.com/proddocs/topic/netscaler-traffic-management-10-map/ns-gslb-config-basic-site-tsk.html"
>Configuring a Basic GSLB Site</ulink>.</para>
@ -459,7 +447,6 @@
</section>
<section id="assign-lb-gslb">
<title>Assigning Load Balancing Rules to GSLB</title>
<para/>
<orderedlist>
<listitem>
<para>Log in to the &PRODUCT; UI as a domain administrator or user.</para>