Check this site which provides information on IBM i products or features which may not be supported in future releases of IBM i operating system or on future product offerings.
Present OS and Hardware roadmap for context and build confidence in maturity of 7.2 and actually 7.3
Help with 3rd party applications running on Power I and compatibility on 7.2 or 7.3
Review HW and SW (Licenced products) on your Power systems in order to identify pre-requisites for 7.2 or 7.3
Identify HW features which are not supported at 7.2 or 7.3
Identify Licensed programs which are not present on 7.2/7.3 – work through replacement products for you specifically
Identify pre-requisites for attached devices – such as HMC, Tape devices, SAN Switching, External Storage array (if present)
Identify likely pricing for extended support on 7.1 for your system
Plan OS upgrade professional services safe in knowledge that pre-requisites for HW and SW are known and accounted for.
Remote system monitoring
Health checks and optimisation
High availability monitoring
Installations & upgrades
Operating System upgrades
Design review & planning