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            -> RECONCILED (all good) / RECONCILE_FAILED (failed, will retry) / RECONCILED_RETRY (success, but need more information, will retry)

Migrate VM

• None

Migrate VM with volumes

• If VM is

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• Running state and volume is Migrating state
• check via

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• host (if source is Up)

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• determine the state and update
  • if Running on dest, Running
  • If Paused on dest, Migrating

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• Update volume state
  • • if source volume is found but destination is not found, mark source as Ready and dest as Destroy
    • if source volume is not found but destination is  found, mark source as Destroy and dest as Ready

Migrate VM with volumes  (If VM is Migrating)

• check VM state and volume states
• Check if there are reconcile commands for the VM
• If no, check the state on source host (last_host_id) and destination host (host_id)
• PrepareForMigrationCommand (Update VM state)
MigrateCommand
• check via source host (if source is Up)
• check via destination host (if dest is Up)
determine the state and update

Migrate Volumes  (If volume is Migrating)

• CopyCommand (from primary1 to secondary)
  • skipped.
  • change state from Creating to Destroy
  • clean volume_store_refcheck if there are other Command on same volume ?
• CopyCommand (from secondary to primary2)
  • find an endpoint 
  • check if volume exists on primary2 (via the host, other host on same cluster or pod or zone, depends on the scope of storage, or cluster of host)
  • check if volume size is changed on primary2
    • if yes, still Copying
    • if no, update statestate from Creating to Destroy, and clean volume_store_ref
• CopyCommand (from primary1 to primary2)
  • check if volume exists on primary1
  • check if volume exists on primary2
  • check if volume size is changed on primary2
    • if yes, still Copying
    • if no, update state
• MigrateVolumeCommand (from primary1 to primary2)
  • check if volume exists on primary1
  • check if volume exists on primary2
  • check if volume size is changed on primary2
    • if yes, still Migrating
    • if no, update state

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