Prerequisites for z/VM to Red Hat OpenShift Virtualization migration

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Before you start the migration process, ensure that all required components, tools, and access permissions are in place.

Setup overview

The migration environment requires the following components:

  • One z/VM guest as the migration source with FCP disk attached
  • One z/VM guest as the migration management server
  • One Red Hat OpenShift Container Platform cluster with virtualization enabled and Red Hat OpenShift Data Foundation storage
  • One OpenShift Virtualization VM as the management server
  • One bastion server as the management server for the OpenShift Container Platform cluster

z/VM guest as the migration source

The z/VM guest that will be migrated requires:

  • Root access
  • FCP disk with multipath enabled (/dev/mapper/mpath*)
  • Clean shutdown capability

z/VM guest as the migration management server

The z/VM management server requires:

  • Red Hat Enterprise Linux 9 or later
  • Root access
  • Access to a z/VM host x3270 terminal session (alternative: use the vmcp commands with sufficient privileges)
  • FCP device support
  • Multipath tools installed
  • Sufficient storage space for the DD image creation
  • qemu-img package installed for QCOW2 conversion
  • Network connectivity to bastion server to upload the image

OpenShift Virtualization VM as the management server

The OpenShift Virtualization management VM requires:

  • Red Hat Enterprise Linux 9 or later
  • Root access

Bastion server

The bastion server requires:

  • OpenShift CLI (oc)
  • virtctl CLI tool
  • Cluster admin access
  • Network connectivity to the z/VM migration management server to receive images