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What Is NetInfo?
21
Once binding has occurred, Mac OS X processes interact transparently with NetInfo.
Rebinding occurs when any network location or settings change or when network
connections are lost, then re-established. If a parent domain becomes unavailable for any
reason, many local processes, even opening applications that reside locally, may be delayed.
You can use
replication
to minimize the potential of such delays.
Replication
To ensure the availability of your shared administrative data as well as improve the speed
with which multiple computers can retrieve it, you can replicate NetInfo parent domains.
When you replicate a shared domain, you set up a
master
and mirror its data to one or more
clones,
which reside on different computers.
Computers in the network can bind to any of the computers hosting the master or its clones.
If one of those hosts is unavailable, another is used automatically. Closer computers offer
faster response times, but any computer that hosts the domain can act as a backup resource
for administrative data when any other computer becomes unavailable.
If the master computer is completely lost, one of the clones can be converted into a new
master.
The master is the only version of the domain that can be modified. When administrative data
needs to change, only the master is changed. The changes are automatically propagated to
the clones, usually within seconds.
“Setting Up Replication” on page 53 provides more information about replication, including
how to create and manage clones.
Clone
Clone
Clone
Master
Clone