Nortel BCM 4.0 Upgrade Manual page 13

• Perform a backup of your BCM 3.6/3.7 system: Current settings will be lost if there is a
system failure during the upgrade procedure. Use the Unified Manager backup and restore
utility (BRU) to back up all the data on the BCM and store it on a remote host before
proceeding with the upgrade procedure.
Note: If you are using Network Configuration Manager (NCM) to manage your
BCM networks, you can use NCM to automatically obtain and store the backup
images of BCM 3.6/3.7 systems before performing the upgrade to BCM 4.0. You
can invoke the BCM 3.6/3.7 backup in accordance with a centralized schedule.
You can also import the BCM 3.6/3.7 configurations into NCM, and use the NCM
excel report capability through Export to TFTP to create an excel programming
record of all the BCM Unified Manager information that NCM is able to manage.
Ensure that you have a complete current backup file stored in a location other than on the
BCM system or the computer you are using to run the backup. This provides you with a
backup of your most recent settings in the event of a system failure during the upgrade.
Warning: After the upgrade is complete, do not restore your BCM 4.0 system using the
BCM 3.6/3.7 backup. The systems are not compatible and the restore will not function
properly. Use the BCM 3.6/3.7 backup only if the upgrade fails and your system is no
longer functional. A backup can only be restored to a system running the same software
version from which the backup was created.
• Note the BCM IP address: Note the IP address of the BCM system that you want to upgrade.
You are required to enter this information in the Upgrade Wizard when prompted to connect to
the BCM system.
• Ensure your BCM 3.6/3.7 system hard disk is correctly partitioned: Your BCM system
hard disk must be partitioned as shown in
the upgrade does not proceed and your system returns to the pre-upgrade state.
Use BIT to correct any hard disk partition issues (see
pre-check or upgrade" on page
Table 1 BCM200/400 and BCM1000 system hard disk partition information
Drive
C:
D:
E:
F:
G:
I:
Note 1: Drives F and G cannot have the same label. One must be NNACTIVE and the other NNINACTIVE.
Note 2: For BCM1000 systems, the MAINTOS partition can be on drive I or H.
Note 3: For BCM1000 systems, the size of drives C and D must be greater than or equal to the values
provided and drive I (or H) must be greater than or equal to 1052834816 bytes.
Table
40).
Label
WINNT
DATA
LOGS
NNACTIVE (or NNINACTIVE
NNINACTIVE (or NNACTIVE) NTFS
MAINTOS
Chapter 2 Pre-upgrade activities
1. If the hard disk is not correctly partitioned,
"Upgrading to BCM 4.0 after a failed
Type Size (bytes)
NTFS exactly 2623863808
NTFS exactly 9911427072
NTFS exactly 2105638912
NTFS exactly 2105638912
exactly 2105638912
NTFS exactly 1052835328
13
Upgrade Guide