Nova 가상 머신 상태와 전환

1 개요

Virtual Machine States and Transitions

가상 머신 상태와 전환

https://docs.openstack.org/nova/2024.1/reference/vm-states.html

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다음 다이어그램과 표는 사용자가 실행한 다양한 명령어에 따른 가상머신(VM) 상태 및 태스크 상태를 보여줍니다.

2 허용되는 상태 전환

3 명령어 요구사항

명령어	요구되는 VM 상태	요구되는 작업(task) 상태	목표 상태
pause	Active, Shutoff, Rescued	Resize Verify, unset	Paused
unpause	Paused	N/A	Active
suspend	Active, Shutoff	N/A	Suspended
resume	Suspended	N/A	Active
rescue	Active, Shutoff	Resize Verify, unset	Rescued
unrescue	Rescued	N/A	Active
set admin password	Active	N/A	Active
rebuild	Active, Shutoff	Resize Verify, unset	Active, Shutoff
force delete	Soft Deleted	N/A	Deleted
restore	Soft Deleted	N/A	Active
soft delete	Active, Shutoff, Error	N/A	Soft Deleted
delete	Active, Shutoff, Building, Rescued, Error	N/A	Deleted
backup	Active, Shutoff	N/A	Active, Shutoff
snapshot	Active, Shutoff	N/A	Active, Shutoff
start	Shutoff, Stopped	N/A	Active
stop	Active, Shutoff, Rescued	Resize Verify, unset	Stopped
reboot	Active, Shutoff, Rescued	Resize Verify, unset	Active
resize	Active, Shutoff	Resize Verify, unset	Resized
revert resize	Active, Shutoff	Resize Verify, unset	Active
confirm resize	Active, Shutoff	Resize Verify, unset	Active

4 VM 상태와 가능한 명령어

VM 상태	명령어
Paused	unpause
Suspended	resume
Active	set admin password, suspend, pause, rescue, rebuild, soft delete, delete, backup, snapshot, stop, reboot, resize, revert resize, confirm resize
Shutoff	suspend, pause, rescue, rebuild, soft delete, delete, backup, start, snapshot, stop, reboot, resize, revert resize, confirm resize
Rescued	unrescue, pause
Stopped	rescue, delete, start
Soft Deleted	force delete, restore
Error	soft delete, delete
Building	delete
Rescued	delete, stop, reboot

5 인스턴스 상태 생성

다음 다이어그램은 새로운 VM 인스턴스가 생성될 때 VM 상태, 작업 상태, 전원 상태의 순서를 보여줍니다.