Last Updated: 13 September 2022

Introducing z/VM 7.3

Available September 16, 2022: z/VM 7.3 includes all new function APARs and service provided in previous versions, and will receive new features delivered as part of the Continuous Delivery service stream over the next two years. z/VM 7.3 supports up to eight members in a SSI cluster, and allows support for NVMe devices on LinuxONE.

Single System Image (SSI) 8

An increase in the maximum size of a SSI cluster from four members to eight, enabling clients to grow their SSI clusters to allow for more workload and reduce the proportion of spare capacity space required to accommodate planned system outages.


Enablement to allow Non-Volatile Memory Express (NVMe) solid-state drive (SSD) adapters to be accessed as one or more EDEVICEs, taking advantage of the capacity and performance benefits these devices offer on LinuxONE.

z/VM 7.3 General Information Manual

The z/VM 7.3 GIM contains an overview of the product and what has changed for the 7.3 release.

Ordering begins September 16, 2022

For information on how to order z/VM 7.3 visit:

New z/VM 7.3 Architecture Level Set
requires one of the following:

IBM z16 Model A01
IBM LinuxONE Emperor 4 Model LA1
IBM z15 Models T01 and T02
IBM LinuxONE III Models LT1 and LT2
IBM LinuxONE III Express
IBM z14 Models M01, M02, M03, M04, M05, and ZR1
IBM LinuxONE Emperor II
IBM LinuxONE Rockhopper II