HA Backout Procedure

If you reach the point in your upgrade procedure where you have upgraded both Oracle Communications Session Delivery Products in the HA pair to a later release that you decide you no longer want to use, you can fall back to a previous release. This section shows you how to fall back to an older image with both systems in your HA node upgraded.

Note:

In the procedure below, ORACLE-2 is the active system and ORACLE-1 is the standby system. The procedure uses these designations because the prior procedure results in ORACLE-2 as the active system. The standby system should be rebooted first.

To backout to a previous (older) release with the both OC-SDPs in the HA node upgraded:

Change the boot parameters on ORACLE-1 to use the appropriate Release S-CZ7.2.0 software image.

Using one of these methods, access the boot parameters on ORACLE-1:
- Reboot ORACLE-1 using any of the ACLI reboot commands. Stop the booting process by hitting the Space bar on your keyboard to halt boot-up when you see this message: Press any key to stop auto-boot.... Type a c and press Enter to begin displaying the boot parameters.
- In the ACLI configure terminal menu, type bootparam and press Enter to being displaying the list of boot parameters.
  
  Scroll through the boot parameters by pressing Enter. Stop when you reach the file name boot parameter.
  
  The following example uses the filenames /boot/nnSCZ730.64.bz and /boot/nnSCZ720.64.bz.
```
ORACLE-1# configure terminal
OC-SDP1(configure)# bootparam
'.' = clear field;  '-' = go to previous field;  ^D = quit
boot device          : eth0
processor number     : 0
host name            : boothost
file name            : /boot/nnSCZ730.64.bz /boot/nnSCZ720.64.bz
```
  In the example above, type the appropriate Release S-CZ7.2.0 file name next to the Release S-CZ7.3.0 file name. Press <Enter> to continue scrolling through the boot parameters.
  
  Exit to the main Superuser prompt.
```
ORACLE-1(configure)# exit
```
Reboot ORACLE-1.
Using the ACLI show version command to confirm that you are using the appropriate release.
```
ORACLE-1# show version
Acme Packet 4600 SCZ7.2.0 
Build Date=01/09/15
```
Initiate a switchover on ORACLE-1.
```
ORACLE-1# notify berpd force
```
At this point, ORACLE-1 becomes the active system running Release S-CZ7.2.0. ORACLE-2 is now the standby system running Release S-CZ7.3.0.
On ORACLE-2, change the boot parameters as you did in Step 1 of this procedure.
Reboot ORACLE-2.