Something as easy as removing a server from a SharePoint farm has its
considerations if we don´t
want to end up suffering consequences.
In the central
administration there´s an easy way of "removing a server" but it is
not the correct path unless you don´t have other option.
The first thing is
to plan, plan and plan. Some considerations that should receive our attention are:
1-Perform a farm backup. It´s an easy way to protect our farm and recover any service application in short time. Be careful if we´re using the User profile Service application.
2- Reorganize the
services from the server/s that are going to be removed to the rest of the
servers. Some questions that may help us to rearrange the services are:
Which kind of server
do we want to remove? Frontend, application server or SQL?
Before removing the
SQL server all the Databases must be moved to another SQL server into the farm.
Does any server you
want to remove use any of these services?...
- Hosts the central administration. Add this service to another server.
- It´s a search topology component (query, crawl, administration); perform a full crawl in case you change the search topology. Review the logs afterwards.
Take it easy with
the UPS and search service applications, both are critical and complex services
to take care of.
Once all the
services are running on the servers that will remain in the farm we might go
for the second step.
1- Uninstall the
server from the SharePoint Wizard. Using the wizard, the server will be
disconnected from the farm, but before all the services and databases
associated will be removed in a clean way.
What if the server
doesn’t exist anymore or if we cannot uninstall from the SharePoint’s wizard or
from control panel? Then we may use the option that appears in the central administration > Manage servers in the farm
In a nutshell even
the easier things need our attention to succeed.
More reading
at http://technet.microsoft.com/en-us/library/cc263130.aspx
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