Linux Distribution for IBM Z and LinuxONE with SMC Support
SMCv1
Provides SMC-Dv1 and SMC-Rv1 support, features z/OS compatibility. SMC-Rv1 link failover/high availability to be added in future versions.Provided by:
- RHEL 8
- SLES 12 SP4: Update to Linux kernel 4.12.14-122.12.1 or higher for essential bug fixes.
- SLES 15 SP1: Update to Linux kernel 4.12.14-197.29.1 or higher for essential bug fixes.
- Ubuntu 18.10
SMCv2
If you want to learn more about SMCv2, check out this video here.
SMC-Dv2 is available in Linux kernel 5.10 or later, and the following (or later) Linux distribution(s)
- Ubuntu 21.04
- RHEL 8.4
- SLES 15 SP3
- Ubuntu 22.04
- RHEL 8.7
- RHEL 9.1
- SLES 15 SP4
SMC-Dv2 Compatibility Support
z/OS announced SMC-Dv2 support here, see section "Shared Memory Communications Version 2 (SMCv2) multiple IP subnet support". When SMC-Dv2 support is enabled in z/OS, a compatibility patch is required in Linux on Z, which is available in the following minimum Linux distribution levels:
- RHEL 8.1, Linux kernel 4.18.0-147.27.1
- RHEL 8.2, Linux kernel 4.18.0-193.28.1
- RHEL 8.3, Linux kernel 4.18.0-228
- SLES 12 SP5, Linux kernel 4.12.14-122.41.1
- SLES 15 SP1, Linux kernel 4.12.14-197.61.1
- SLES 15 SP2, Linux kernel 5.3.18-24.9.1
- Ubuntu 20.04, Linux kernel 5.4.0-45.49
Supported Environments
Linux on IBM Z and LinuxONE
- LPAR: Yes (no prerequisites)
- z/VM: Requires z/VM 6.3 or later
- KVM: Support for PCI devices pending
Other Platforms
z/OS- See this page for a comprehensive overview.
Usage
See here.Troubleshooting
See here.FAQ
See here.References
- smc-tools package:
- Whitepaper: Performance Evaluation of SMC-D with SAP Banking on IBM Z
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