If you’ve installed Zend Server for IBM i and are planning to remove the older Zend Core for i5/OS, first check that Zend Core’s version is at least 2.6.1.
Zend Core must be at 2.6.1+ because if you uninstall version 2.6.0 or lower, portions of Zend Server will be uninstalled as well. Therefore, update your old Zend Core to 2.6.1+ before uninstalling.
- Instructions for safe removal of Zend Core for i5/OS
- Zend Core updates (scroll to bottom of that page)