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:
If you plan to upgrade from a release prior to S-CZ7.2.0 to S-CZ7.2.0 or later and you use CDR for Accounting, you must set the cdr-output-redundancy parameter to enabled for the Standby to upgrade and sync properly. You can then change the parameter to disabled afterwards, if needed.Note:
See the diagram below, which addresses how the HA Upgrade procedures' sequence includes rebooting the standby system first to avoid service interruption.![](img/GUID-8D124C45-28EE-4F5D-B97E-305761E56FC6-default.png)