new cinder API call to mark cinder-volume down

Registered by dongwenjuan on 2015-10-15

New API call is used to change the state of cinder-volume service 'down'
immediately. It is assumed that the one calling this API has made sure
cinder-volume host is down. Then using the evacuate API without a delay.
API usage applies mainly for cases where there is single host mapped to
cinder-volume.

Blueprint information

Status:
Not started
Approver:
Sean McGinnis
Priority:
Low
Drafter:
dongwenjuan
Direction:
Needs approval
Assignee:
dongwenjuan
Definition:
Discussion
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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