This article describes prerequisites for installing WebSphere Application Server for z/OS.
The hardware requirements for this product are any hardware that supports z/OS Version 1 Release 6 or later. However, there are significant performance advantages for those applications doing floating point arithmetic if the machine has binary floating point hardware, such as S/390 Parallel Enterprise Server-Generation 5 and later systems.
You should plan on three 3390-3 DASD volumes (or equivalent storage) for the product target and distribution libraries and the product HFS, and an additional 3390-3 DASD volume (or equivalent storage) for CustomPac dialogs and work data sets (if you install using a ServerPac or SystemPac) or for SMP/E work data sets and relfile storage (if you install using a Custom-Build Product Delivery Offering).