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Server farms can include multiple domains as long as a common base of user
accounts exists between the domains. In the example above, the trust relationship
between Domain 1 and Domain 2 determines the user account base.
Each domain can contain a single or multiple servers. As with a farm containing
multiple servers from a single domain, a multiple domain farm cannot include
workgroup servers and cannot include user accounts local to each server in the
base of user accounts.
If necessary, you can create multiple farms on your network. Multiple farms are
administered independently of each other—no published application information
is shared between farms.
Some reasons why you might want to create multiple farms include:
Accounting and
charge-back If you track resource utilization in order to charge separate
departments, you can create separate farms for the respective
departments.
Geographical split Although farms can span a geographical split, it may not be
practical from an administrative point of view to create a single
farm that must be administered by two IT groups in two different
locations.
Lack of common
user account base If your Citrix servers must provide applications to groups of
domain users that cannot comprise a single common user account
base (the involved domains cannot trust each other), you must
create separate farms.