NetWare Directory Services

8-20
Implementing NetWare Directory Services
Implementing NDS on Various Sizes of Networks
Replicas
Create replicas to ensure adequate redundancy of critical partitions.
Determine which servers within your organization provide system-wide
services, such as applications that are accessed by multiple departments or
the entire organization.
Place replicas of the partitions that include these critical servers on other
servers in different locations on the network. This allows all users to
authenticate to an enterprise resource without increasing network traffic.
For servers that provide local services, place replicas of the partitions that
include them on other local servers.
If only one server exists at a location, place a replica of the partition that
includes the server on a server in a different location. Provide additional
replicas if possible.
For added security and fault tolerance, place a read/write replica of each
partition on a server at the Organization object level of each Directory tree.
This enables the central network management staff to maintain a complete
Directory database in one location.
Make sure that every partition has a sufficient number of replicas available
on the network, including replicas on appropriate distant servers, to ensure
fault tolerance and to decrease WAN link traffic.
Most replicas should be located on servers within the main corporate
network, except for other locations that have multiple servers. In these cases,
replicas of the appropriate partitions are located on all these servers.