Avamar Proxies cannot be upgraded anymore from version 7.2 to 7.4 using the old method (i.e. mounting the ISO file and rebooting the proxy), due to incompatibility with the new version.

In general, you have to delete the old proxies, and deploy new proxies using the new tool Proxy Deployment Manager.   To preserve the settings of the old proxies, perform the following steps when there are no backup jobs running:

1. Collect all the details from the old proxies including:
   • Hostname, Domain Name, IP address, Netmask, Gateway, DNS Server
   • VM host, VM datastore, VM network
2. Delete proxies on the Avamar Console:
   • First, on the POLICY window, edit all the backup policies that are using the proxies, and uncheck them.
   • Once removed from policy, go to ADMINISTRATION, and delete the proxies.
3. Go to vCenter to power down the proxies, then “Delete from Disk”
4. Once all the proxies are gone, you are now ready to deploy the new proxies. Go to Avamar Console, click VMware > Proxy Deployment Manager.
5. Click “Create Recommendation” button.
6. Once you see the proxy recommendation, enter the proxy detail one by one for all proxies (including hostname, IP, gateway, VM network, etc.) on their respective VMware hosts.
7. Remove all other “New Proxies” and hit “Apply”
8. Once the proxies are deployed, they need to be registered to the Avamar server, one by one.
9. Using vmware console or ssh, connect to the proxy, and logon as root.
10. Enter the command: /usr/local/avamarclient/etc/initproxyappliance.sh start
11. Register the proxy to the appropriate Avamar server (use the Avamar server FQDN).
12. Once registered, go to the Avamar Console and configure the proxies:
    • On ADMINISTRATION window, edit the proxy, then select the appropriate “Datastores” and “Groups”
    • On POLICY window, edit the image-level backup policies, then add back (or check) the Proxies
13. Perform test backup.