- Sync the config between the two appliances if needed.
- If running ASM, sync the policies.
- If running APM, sync the policies.
- Download the Base image and the latest hotfix.
- Import the base image and the hotfix into both the active and standby appliance.
- Reactivate the license on both appliances.
- Generate a new UCS archive of each appliance and save them off of the box.
- Perform the install into a clean partition on both appliances.
- The install is behind the scenes and does not interrupt traffic therefor this can be done on both the active and standby.
- If you launch the install from the hotfix it will install both the base image and the hotfix together at the same time saving a step of installing the base image and then the hotfix.
- Reboot the standby unit (Unit 2) to the newly upgraded volume.
- Confirm the configuration has loaded and all pools and VIPS are green.
- Failover to Unit 2 and confirm this is passing traffic as expected.
- When Unit 2 is confirm to be good, reboot Unit 1 into the upgraded volume.
- Confirm the configuration has loaded and all pools and VIPS are green.
- Fail back over to Unit 1 and confirm this is passing traffic as expected.