Moving an instance between AZ using live block migration fails.

Solution Verified - Updated -


When launching instance migration between AZ fails:

# openstack server migrate fbd541aa-1a5f-44d8-9a6c-2f67643903b2 --disk-overcommit --block-migration --live
Migration pre-check error: Unable to migrate fbd541aa-1a5f-44d8-9a6c-2f67643903b2: Disk of instance is too large(available on destination host:-428422987776 < need:29360128) (HTTP 400) (Request-ID: req-6e92f990-4907-4943-99c3-c707194446b2)


  • Red Hat OpenStack Platform 13

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