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A Red Hat training course is available for Red Hat Enterprise Linux

15.3. Live Migration and Red Hat Enterprise Linux Version Compatibility

Live Migration is supported as shown in Table 15.1, “Live Migration Compatibility”:

Table 15.1. Live Migration Compatibility

Migration Method Release Type Example Live Migration Support Notes
Forward Major release 6.5+ → 7.x Fully supported Any issues should be reported
Backward Major release 7.x → 6.y Not supported
ForwardMinor release7.x → 7.y (7.0 → 7.1)Fully supportedAny issues should be reported
BackwardMinor release7.y → 7.x (7.1 → 7.0)Fully supportedAny issues should be reported

Troubleshooting problems with migration

  • Issues with the migration protocol — If backward migration ends with "unknown section error", repeating the migration process can repair the issue as it may be a transient error. If not, report the problem.
  • Issues with audio devices — When migrating from Red Hat Enterprise Linux 6.x to Red Hat Enterprise Linux 7.y, note that the es1370 audio card is no longer supported. Use the ac97 audio card instead.
  • Issues with network cards — When migrating from Red Hat Enterprise Linux 6.x to Red Hat Enterprise Linux 7.y, note that the pcnet and ne2k_pci network cards are no longer supported. Use the virtio-net network device instead.
Configuring Network Storage

Configure shared storage and install a guest virtual machine on the shared storage.