Users Guide

45| The Basic User-Centric Networks Dell Networking W-Series ArubaOS 6.5.x| User Guide
Procedure Overview
The procedure to replace a backup or active master controller is comprised of the following tasks:
1.
Change the VRRP Priorities for a Redundant Master Pair on page 45
2. Back Up the Flash File System on page 45
3. Stage the New Controller on page 46
4. Add Licenses to the New Controller on page 46
5. Backup Newly Installed Licenses on page 47
6. Import and Restore Flash Backup on page 47
7. Restore Licenses on page 48
8. Reboot the Controller on page 48
9. Modify the Host Name on page 48
10.Modify Topology Settings on page 48
11.Save your Configuration on page 49
12.Remove the Existing Controller on page 49
If your controller does not have any manually added licenses, skip steps 3, 4 and 6 of the following procedure.
Change the VRRP Priorities for a Redundant Master Pair
If your deployment uses VRRP to define the primary master in a pair of redundant master controllers, and you
are replacing only the primary master controller, and you must change the VRRP priority levels of the
controllers so the primary master controller has a lower priority than the backup master controller. This will
allow the configuration from the backup master to be copied to the new master controller, and prevent an old
or inaccurate configuration from being pushed to the local controllers.
For details on changing VRRP priorities, see
Configuring VRRP Redundancy on page 626.
Back Up the Flash File System
To start the migration process, access the backup or master controller being replaced and create a backup of
the flash file system. You can create a backup file using the WebUI or command-line interfaces.
In the WebUI
To back up the flash from the WebUI, log in to the current backup or master controller and create a flash
backup using the procedure below.
1. Navigate to Maintenance > File >Backup Flash.
2. Select Create Backup.
3. Select Copy Backup to create a copy of the backup file. By default, the flash backup file is named
flashbackup.tar.gz.
4. Next, move the backup the flash file system to an external server. Navigate to Maintenance>Copy Files.
5. In the Source Selection section, select Flash File System.
6. In the Destination Selection section, select one of the server options to move the flash backup off the
controller, and enter the name of the flash backup file to be exported.
In the CLI
To create a flash backup from the command-line interface, access the active master controller and issue the
backup flash command, as shown in the example below.