i5/OS and OS/400 operating systems

Table 1. Server requirements for Host On-Demand on OS/400 operating systems
Server operating system	i5/OS V6R1 i5/OS V7R1 Recent cumulative service is recommended. Refer to the IBM System i5 Support, Recommended fixes web site for service information. Unicode support using Coded Character Set Identifiers (CCSIDs) requires V5R2 with the following PTFs: SI08903 SI08904 SI08933 SI08985
Disk space	363 MB for an English-only installation. Add 4 to 8 MB for each additional national language to be installed.
Memory	256 MB memory or more. Refer to the IBM System i5 Performance Capabilities Reference Web page for additional information about the impact of additional memory and Java performance.
Supported Web servers	Lotus Domino R6.5, R7, R8, and R8.5 IBM HTTP Server Versions 6.0, 6.1, and 7.0 Apache HTTP Server Versions 1.3, 2.0, 2.2, and 2.2.11
Supported Web Application Servers	WebSphere Application Server Versions 6.0, 6.1, and 7.0 Lotus Domino for IBM System i (manual configuration of servlet required) R6, R6.5, R7, R8, and R8.5
Java	Toolbox for Java Java Developer's Kit Version 1.6.
All other requirements	TCP/IP Connectivity Utilities for IBM System i QShell Interpreter