HA Upgrade

In the descriptions and processes outlined below, ORACLE-1 is initially the active system and ORACLE-2 is initially the standby system. Please read the following procedures carefully before beginning the upgrade. If necessary, you can back out of the upgrade once during the upgrade procedure and once after you have completed the upgrade procedure.

Note:

See the diagram below, which addresses how the HA Upgrade procedures' sequence includes rebooting the standby system first to avoid service interruption.

Figure 10-1 Configure and Reboot Standby First for HA Procedures

HA Upgrade Procedure

This procedure upgrades HA deployments.

Note:

In the procedure below, ORACLE-1 is the active system and ORACLE-2 is the standby system. The standby system should be rebooted first.

Confirm that ORACLE-1 and ORACLE-2 start up and are synchronized.
Ensure that the running and current configurations on ORACLE-1 and ORACLE-2 have the same number. In the following examples, all of the configuration versions are 5.

On ORACLE-1 and ORACLE-2, use the show health command to ensure all processes are synchronized.

On ORACLE-1, show the current configuration version by using the ACLI display-current-cfg-version command. Then use the same command on ORACLE-2 and be sure that its current configuration version is the same as the one on ORACLE-1.
```
ORACLE-1# display-current-cfg-version
Current configuration version is 5
ORACLE-1#
ORACLE-2# display-current-cfg-version
Current configuration version is 5
ORACLE-2#
```
On ORACLE-1, show the running configuration version by using the ACLI display-running-cfg-version command. Then use the same command on ORACLE-2 and be sure that its running configuration version is the same as the one on ORACLE-1.
```
ORACLE-1# display-running-cfg-version
Running configuration version is 5
ORACLE-1#
ORACLE-2# display-running-cfg-version
Running configuration version is 5
ORACLE-2#
```
On ORACLE-2, before loading the software image to the flash, check the remaining space in the /boot directory using the ACLI show space boot command.
```
ORACLE-2# show space boot
boot: 24759488/25760512 bytes (99%) remaining
ORACLE-2#
```
If you see less than 50% of the space remaining, delete older stored firmware images to make space.

At a minimum, we recommend that you leave the diags.gz file and the currently running release on the flash memory (in the event that a rollback is required).
Upload the OCSBC software image file and stage three bootloader to the /boot directory using an SFTP client. (See the instructions on updating the Stage 3 Bootloader.)
Change the boot configuration parameters on ORACLE-2 to use the appropriate new release software image.

Note:
From the point that you upgrade the image file, do not make any configuration changes. Likewise, do not use the save-config or activate-config commands. Once you execute the save-config command, the configuration can not be guaranteed to be backward compatible should you have to back out of the upgrade.
Access the boot parameters on ORACLE-2:
- 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/nnSCZ720m5.64.bz and /boot/nnSCZ730.64.bz.
```
ORACLE-2# configure terminal
ORACLE-2(configure)# bootparam
'.' = clear field;  '-' = go to previous field;  ^D = quit
boot device          : eth0
processor number     : 0
host name            : boothost
file name            : /boot/nnSCZ720m5.64.bz /boot/nnSCZ730.64.bz
```
  As shown above, type the new Release file name next to the previous one, including the path. Press <Enter> to continue scrolling through the boot parameters.
  
  Reboot ORACLE-2.
After ORACLE-2 has completed the boot process, use the verify-config command to confirm that the configuration has been upgraded properly.
```
ORACLE-2# verify-config
```
Confirm the ORACLE-2 is running the new boot image using the show version command.
```
ORACLE-2# show version
Acme Packet 4600 SCZ7.3.0 
Build Date=09/09/15
```
Use the show health command to confirm that ORACLE-2 is the standby system.
As you did for ORACLE-2, upload the OCSBC software image file and stage three bootloader to the /boot directory using an SFTP client. (See the instructions on updating the Stage 3 Bootloader.)

As you did for ORACLE-2, configure the boot parameters on ORACLE-1 to boot from the new software image. Then reboot ORACLE-1.

ORACLE-1# reboot
--------------------------------------------------------
WARNING: you are about to reboot this SD!
--------------------------------------------------------
Reboot this SD [y/n]?: y

Rebooting ORACLE-1 causes ORACLE-2 to become the active system in the HA node.

When ORACLE-1 is finished rebooting, use the show health command to confirm that it is in the standby state.

Note:
If you need to revert to the older image, use the HA Backout Procedure.

HA Backout Procedure

If you reach the point in your upgrade procedure where you have upgraded both Oracle Communications Session Border Controllers 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 OCSBCs 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
OCSBC1(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.