Storage
Ubuntu Server 20.04.1 includes several storage device drivers that are specific to z/Architecture®.
For information about storage networks and I/O to storage devices, see
www.ibm.com/it-infrastructure/z/capabilities/networking
Restrictions
For prerequisites and restrictions see the IBM® LinuxONE and IBM Z® architecture-specific information in the Ubuntu Server 20.04.1 release notes atwiki.ubuntu.com/FocalFossa/ReleaseNotes