z/VM
| Support for z17 | z/VM 7.3 | z/VM 7.4 | z/VM 7.5 |
|---|---|---|---|
| Support for z17 | Yes (with applicable PTFs) | Yes (with applicable PTFs) | Yes |
| OSA-Express7S GbE LX and GbE SX | |||
| CHPID Type OSC | Yes | Yes | Yes |
| CHPID type OSD | Yes | Yes | Yes |
| OSA-Express7S 10 GbE LR and GbE SR | |||
| CHPID type OSD | Yes | Yes | Yes |
| OSA-Express7S 1000BASE-T Ethernet | |||
| CHPID type OSD | Yes | Yes | Yes |
| CP Assist for Cryptographic Function (CPACF) | for guest exploitation | for guest exploitation | for guest exploitation |
| Protected Key CP Assist for Cryptographic Function (CPACF) | for guest exploitation | for guest exploitation | for guest exploitation |
| Crypto Express7S and Express8S Toleration (1 port and 2 ports) | for guest exploitation | for guest exploitation | for guest exploitation |
| Crypto Express8S and Express7S (1 port and 2 ports) Exploitation | for guest exploitation and exploitation within the z/VM TLS/SSL server | for guest exploitation and exploitation within the z/VM TLS/SSL server | for guest exploitation and exploitation within the z/VM TLS/SSL server |
| Crypto Express8S and Crypto Express7S support of Visa Format Preserving Encryption | for guest exploitation | for guest exploitation | for guest exploitation |
| Crypto Express7S supports more than 16 domains | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type CL6 support for coupling adapter | for guest exploitation with PTFs | for guest exploitation with PTFs | for guest exploitation |
| CHPID type FCP support of hardware data router | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type FC using native FICON® or Channel-To-Channel (CTC) | Yes | Yes | Yes |
| CHPID type FCP for support of SCSI disks | Yes | Yes | Yes |
| CHPID type FCP for support of hardware data router | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type FC for support of zHPF single-track operations | Yes | Yes | Yes |
| CHPID type FC for support of zHPF multitrack operations | Yes | Yes | Yes |
| Integrated Coupling Adapter 2 Fanout (ICA SR-2) | for guest exploitation | for guest exploitation | for guest exploitation |
| Support for 256 Coupling CHPIDs | for guest exploitation | for guest exploitation | for guest exploitation |
| Coupling Express3 LR (CE3 LR) | Only to define, modify, and delete CHPID type CL5 and CL6, when z/VM® is the controlling LP for dynamic I/O | Only to define, modify, and delete CHPID type CL5 and CL6, when z/VM is the controlling LP for dynamic I/O | Only to define, modify, and delete CHPID type CL5 and CL6, when z/VM is the controlling LP for dynamic I/O |
| Asynchronous CF duplexing for lock structures | for guest exploitation | for guest exploitation | for guest exploitation |
| Simultaneous multithreading (SMT) | Yes | Yes | Yes |
| Secure Key Advanced Encryption Standard (AES) | for guest exploitation | for guest exploitation | for guest exploitation |
| Support for z/VM-mode partition | Yes | Yes | Yes |
| Support for dynamic add of Reserved Central Storage | Yes | Yes | Yes |
| Support for dynamic removal of Reserved Central Storage | Yes Requires z14 or later server | Yes Requires z15 or later server | Yes Requires z16 or later server |
| Support for z/VM Systems Management from the HMC | No | No | No |
| Support for installing Linux® from the HMC | Yes | Yes | Yes |
| Dedicated OSA port to an operating system | Yes | Yes | Yes |
| HiperDispatch Enhancements | Yes | Yes | Yes |
| zIIP Simulation on CPs (only on processor that support the specialty engine type) | Yes | Yes | Yes |
| Maximum number of CPs | 80 cores when SMT is disabled, 40 cores/40 threads when enabled for 1 thread per core, and 40 cores/80 threads when SMT is enabled for 2 threads per core | 80 cores when SMT is disabled, 40 cores/40 threads when enabled for 1 thread per core, and 40 cores/80 threads when SMT is enabled for 2 threads per core | 80 cores when SMT is disabled, 40 cores/40 threads when enabled for 1 thread per core, and 40 cores/80 threads when SMT is enabled for 2 threads per core |
| Maximum central storage | 4 TB | 4 TB | 4 TB |
| Maximum number of channel paths | 256 | 256 | 256 |
| Maximum CFLEVEL supported | level 26 | level 26 | level 26 |
| Support for multiple LCSSs | Yes | Yes | Yes |
| IFLs for Linux workloads | Yes | Yes | Yes |
| System-managed Coupling Facility structure duplexing, for z/OS® guests | Yes | Yes | Yes |
| CHPID type OSD supporting Checksum offload for IPv6 packets | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type OSD supporting Checksum offload for LPAR-to-LPAR traffic for IPv4 and IPv6 packets | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type OSD supporting Large Send for IPv6 packets | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type OSA performance enhancements | for guest exploitation | for guest exploitation | for guest exploitation |
| CHPID type FCP performance enhancements | Yes | Yes | Yes |
| Hardware Decimal Floating Point facilities | Yes | Yes | Yes |
| z/Architecture® 64- bit addressing | Yes | Yes | Yes |
| Guest Coupling simulation | Yes | Yes | Yes |
| Dynamic I/O configuration support through the CP configurability function | Yes | Yes | Yes |
| Shared Memory Communications - RDMA (SMC-R) | for guest exploitation | for guest exploitation | for guest exploitation |
| Shared Memory communications - Direct Memory Access (SMC-D) | for guest exploitation | for guest exploitation | for guest exploitation |
| Single Instruction Multiple Data (SIMC) | for guest exploitation | for guest exploitation | for guest exploitation |
| Performance assist by pass-through of adapter I/O operations and interruptions for CHPID types FCP, IQD, and OSD | Yes | Yes | Yes |
| Multi-VSwitch Link Aggregation | Yes | Yes | Yes |
| Guarded Storage | for guest exploitation | for guest exploitation | for guest exploitation |
| Instruction Execution Protection Facility | for guest exploitation | for guest exploitation | for guest exploitation |
| NVMe | for guest exploitation | for guest exploitation | for guest exploitation |
| CF Scalability Enhancements | for guest exploitation | for guest exploitation | for guest exploitation |
| Fair Latch Manager | for guest exploitation | for guest exploitation | for guest exploitation |
| CPU Measurement Facility | Yes | Yes | Yes |
| Compression/CPU Deflate and Asynchronous Compression | Yes | Yes | Yes |
| System Recovery Boost | Yes | Yes | Yes |
| Quantum Safe support | for guest exploitation | for guest exploitation | for guest exploitation |
| Greater than 16 CEX adapters | for guest exploitation | for guest exploitation | for guest exploitation |
| Format preserving encryption | for guest exploitation | for guest exploitation | for guest exploitation |
| ECC curve support | for guest exploitation | for guest exploitation | for guest exploitation |
| Post Quantum support | for guest exploitation | for guest exploitation | for guest exploitation |
| Sort Acceleration support for DFSORT | for guest exploitation | for guest exploitation | for guest exploitation |
| Fibre Channel Endpoint Security | Yes | Yes | Yes |
| AIU for IBM Z | for guest exploitation | for guest exploitation | for guest exploitation |
| Secure Boot of Linux for ECKD DASD | with applicable PTFs (for guest exploitation) | for guest exploitation | for guest exploitation |
| Validated Boot for z/OS | with applicable PTFs (for guest exploitation)1 | for guest exploitation1 | for guest exploitation1 |
| Network Express EQDIO support | with applicable PTFs (Host and guest exploitation) | with applicable PTFs (Host and guest exploitation) | for host and guest exploitation |
| Network Express NETH support | with applicable PTFs (for guest exploitation) | with applicable PTFs (for guest exploitation) | for guest exploitation |
| Network Express NETD support, VF devices only | with applicable PTFs (for guest exploitation) | with applicable PTFs (for guest exploitation) | for guest exploitation |
| Power Metric consumption support within the z/VM monitor stream | with applicable PTFs | with applicable PTFs | Yes |
| z/VM Performance Data Pump Metric dashboard including guest-level power apportionment | with applicable PTFs | with applicable PTFs | Yes |
|
Network Express 1G OSC support |
with applicable PTFs | with applicable PTFs | Yes |
|
Network Express 1G 3215 support |
with applicable PTFs | with applicable PTFs | Yes |
|
IBM Integrated Network Adapter 100G |
with applicable PTFs (for guest exploitation) | with applicable PTFs (for guest exploitation) | for guest exploitation |
- z/OS can only be IPLed in audit mode.