Microsoft Sharepoint Products and Technologies Resource Kit eBook

284 Part IV: Deployment Scenarios
SharePoint Portal Server 2003, checks this configuration database for component
assignment changes every 30 seconds. If it detects a change, the service turns on or off
those portions of the SharePoint Portal Server code to run only the assigned services.
For example, let’s assume you have a server in a large server farm that has been
assigned the index and job server roles. Now, let’s assume that you decide to move
the job server role to another index server in the farm. On both of these servers, all
the SharePoint Portal Server code is installed, but when you make the service assignment
change, the Admin service on the first server will “turn off” the job server role
services and the Admin service on the second server will “turn on” the job server
role services and assume these responsibilities. In this manner, each server in the
farm will know its role in the farm, the services it is to run to “complete” the farm,
and when to change its role to meet new role assignments you select on the Components
Selection page.
Preparing for Deploying a Farm
Before building a server farm, you need to collect some information and create prerequisite
accounts. Table 12-1 shows the information needed to create a portal site
and includes the values for each item used for a medium farm in this chapter. The
numbers and DNS entries filled in are examples. You should fill in your own IP
Address Range and DNS entries based on your environment.
Table 12-1 Roles, IP Addresses, and Names in a Medium Farm
Physical
Server DNS Name IP Address Subnet Mask Description Notes
n/a cluster.sps.test.local 172.16.12.200 255.255.0.0 Corporate portal
virtual host
SPS-01 SPS-01.sps.test.local 172.16.12.10 255.255.0.0 Host address
for front-end
Web/search
server SPS-01
SPS-01 172.16.12.200 255.255.0.0 Cluster address
for front-end
Web/search
server SPS-01
Used for NLB
If only one NIC
in server, bind
this address and
cluster address
(below). If multiple
NICs, choose
the NIC connected
to the internal
network for this
address.
If only one NIC in
server, bind this
address and host
address (above).
If multiple NICs,
choose the NIC
connected to the
external network
for this address.