Side by side
IBM Debug for z/OS vs IBM z/VM
Both stand on mainframe software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Windows
Visit IBM Debug for z/OS 
Paid Self-hosted
IBM z/VM is aimed at organizations consolidating virtualized workloads on IBM Z or LinuxONE systems. Confirm supported hardware for the intended release and account for separately sourced Linux and optional licenses.
Visit IBM z/VMThe facts
| IBM Debug for z/OS | IBM z/VM | |
|---|---|---|
| Free plan | No | No |
| Open source | Not published | Not published |
| Runs on | Windows | Self-hosted |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | IBM z/VM |
| Website | ibm.com | ibm.com |
| On mainframe software | #4 of 10 | #1 of 10 |
IBM Debug for z/OS: what it does well
IBM z/VM: what it does well
- Supports Linux, z/OS, and z/TPF guest virtual machines.
- IBM cites capacity from hundreds to thousands of guests.
- Includes nested virtualization and Memory Overcommitment Control.
- Performance Data Pump extracts real-time performance data.
What to know first
- Paid product; no price is listed.
- Runs only on supported IBM Z and LinuxONE servers.
- Linux must be obtained separately.
- Some optional features require separate orders and licenses.
Alternatives to IBM Debug for z/OS Alternatives to IBM z/VM The whole list