System requirements
DITTO runs in the following environments (or higher):
| Operating System | Software | Hardware |
|---|---|---|
| MVS/ESA, OS/390, z/OS | Multiple Virtual Storage/Enterprise Systems Architecture (MVS/ESA) SP, Version 4 Release 3 or higher | zSeries® servers |
| VM/ESA | Virtual Machine/Enterprise Systems Architecture, Release 2.1 | There are no special hardware requirements for DITTO for VM |
| VSE/ESA | Virtual Storage Extended/Enterprise Systems Architecture (VSE/ESA), Version 2 | There are no special hardware requirements for DITTO for VSE |

