Upgrading a version 9.4 HA configuration

You can upgrade your high availability (HA) configuration to a new firmware version while maintaining the availability of your HA queue managers.

Before you begin

Before upgrading, you should back up your queue managers as described in Backing up a queue manager. You should also ensure that none of your queue managers are in the partitioned state, resolving the state before upgrade if necessary.

About this task

You must use the command line interface to upgrade your HA queue managers.

You suspend one appliance so that any queue managers running there fail over to the other appliance in your HA pair. You then upgrade the firmware on the first appliance and restart it. Finally you upgrade the second HA appliance.

Procedure

To upgrade the first appliance in your HA group:
1. Suspend the appliance from the HA group:
```
sethagrp -s
```
  Queue managers fail over to the other appliance.
2. Upgrade your appliance to the new firmware level:
```
boot image accept-license firmware_file
```
  Where firmware_file is the file that contains the appliance firmware upgrade (see Overview of installing a new level of firmware by using the command line for details on obtaining the file).
  The appliance restarts.
3. Resume the appliance:
```
sethagrp -r
```
  Queue manager fail back to this appliance.
To upgrade the second appliance:
1. Suspend the appliance from the HA group:
```
sethagrp -s
```
2. Upgrade the appliance to the new firmware level:
```
boot image accept-license firmware_file
```
  Where firmware_file is the file that contains the appliance firmware upgrade (see Overview of installing a new level of firmware by using the command line for details on obtaining the file).
  The appliance restarts.
3. Resume the appliance:
```
sethagrp -r
```