3Com NBX 100 Administrator's Manual page 339

Data Migration Notes and Prerequisites
Before you begin a data migration, be sure to read and understand these
important prerequisites.
You cannot simply remove the disk drive from one type of NBX
platform and install it into a different platform. If you attempt to do
so, the system will not boot properly.
Licenses are not part of a database migration. The licenses on your old
NBX system will not work on the new system. Your new NBX system
comes with its own set of license keys that you must enter into the
new NBX system before you migrate your data.
The target system must be licensed to support the capacities of the
source system. For example, the data from a SuperStack 3 NBX system
with 1000 devices cannot be moved successfully onto an NBX V3000
system unless the V3000 system has the memory upgrade installed
and a license to support at least 1000 devices.
You can choose to include or exclude users' voice mail messages when
you perform the data migration.
The system software version on the target system must be equal to or
higher than the software version on the source system. For example,
data from an NBX 5.0 system cannot be moved onto an NBX 4.3
system using the data migration feature. The target system software
must be at R5.0 or higher.
A data migration operation does not alter the data. For example, it
will not change extensions. Changing between a 3-digit dial plan and
a 4-digit dial plan requires a separate series of steps that are described
in "Converting Extensions"
Migrating Data
To migrate data from one platform to another, you use the NBX NetSet
utility to perform a backup operation on the source platform and then
perform a restore operation using that backup file on the target platform.
You should perform the migration outside of regular business hours
when no users are on the system.
To migrate data:
1 Install the target system.
2 Install your license keys on the new system. Note that you need new
license keys for the new system — you cannot simply load a license
backup file from the old NBX system nor can you use the license keys
in Chapter 2.
Manage Data 339