Table of Contents
Advertisement
Defining a Replication Strategy
The replication strategy that you define is determined by the service you want to
provide.
•
If you have multiple consumers for different locations or sections of your
company or if you have some servers that are insecure, then you should use
fractional replication to exclude sensitive or seldom-modified information to
maintain data integrity without compromising sensitive information.
Fractional replication is described in "Fractional Replication," on page 127.
•
If your network is stretched across a wide geographical area, then you will
have multiple Directory Servers at multiple sites, with local data masters
connected by multi-master replication. The required resources and
configuration for wide-area replication are described in "Replication across a
Wide-Area Network," on page 128.
•
If high availability is your primary concern, you should create a data center
with multiple Directory Servers on a single site. You can use single-master
replication to provide read-failover and multi-master replication to provide
write-failover. How to configure replication for high availability is described in
"Using Replication for High Availability," on page 129.
•
If local availability is your primary concern, you should use replication to
distribute data geographically to Directory Servers in local offices around the
world. You can decide to hold a master copy of all information in a single
location, such as the company headquarters, or to let local sites manage the
parts of the DIT that are relevant for them. The type of replication
configuration to set up is described in "Using Replication for Local
Availability," on page 130.
•
In all cases, you probably want to balance the load of requests serviced by your
Directory Servers and avoid network congestion. Strategies for load balancing
your Directory Servers and your network are provided in "Using Replication
for Load Balancing," on page 130.
To determine your replication strategy, start by performing a survey of your
network, your users, your applications, and how they use the directory service you
can provide. For guidelines on performing this survey, refer to the following
section, "Replication Survey."
Defining a Replication Strategy
Chapter 6
Designing the Replication Process
125
Advertisement
Table of Contents
