Deciding whether or not to set up multiple sites and replication

Before you install a second site, you should decide whether or not multiple sites and replication are a good choice in your network. Setting up more than one site adds a complexity that you may not need. Multiple sites can cause certain tasks such as viewing client logs and reports more difficult. Generally, you should install only one site.
The main purposes to set up multiple sites and replication are:
  • If your network has a slow WAN link.
    Multiple sites provide a second management server to which clients in multiple geographical areas can connect locally. For example, suppose a company has several large offices in both Germany and in the United States. If the connection between Germany and the United States is slow, then the company should create one site in Germany and one site in the United States. The Germany clients can connect to the Germany site and the United States clients can connect to the United States site. This distribution reduces the number of clients that have to communicate over the slow WAN link.
  • For database redundancy.
    Replication ensures that if one datacenter was corrupted or lost, you would have backed up the database in a different datacenter.
In some situations, you should use a Group Update Provider (GUP) instead of multiple sites and replication. Use a GUP when you have either a lot of clients, or clients that are distributed over several geographical locations.
You should not set up more than five replicated sites.
Deciding whether to use more than one site with replication, a GUP, or neither
Question
Answer
Use multiple sites with replication or use a GUP
Do you have more than 45,000 clients?
Yes.
Do you have either multiple locations or a slow WAN link that connects to a location with more than 1,000 clients?
Yes.
  • For a slow WAN link, consider using replication.
  • For multiple locations, consider using a GUP.
No. You do not need either replication or a GUP.
No.
Do you have a slow WAN link that connects to a location with more than 1,000 clients?
Yes. Consider using replication.
No. You do not need either replication or a GUP.
Do you have a slow WAN link?
Yes.
Do you have multiple locations with more than 1,000 clients per location?
Yes. Consider using replication.
No. Consider using a GUP.
No.
Do you have multiple locations with more than 1,000 clients per location?
Yes. Consider using replication.
No. You do not need either replication or a GUP.
Do you have multiple locations with more than 1,000 clients per location?
Yes.
Do you have a slow WAN link that connects to a location with more than 1,000 clients?
Yes. Consider using a GUP.
No. You do not need either replication or a GUP.
No
Do you have a slow WAN link that connects to a location with more than 1,000 clients?
Yes. Consider using a GUP.
No. You do not need either replication or a GUP.
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