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What are the specific nova back-end commands, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

1.backup

Function: backup virtual machine usage: nova backup parameter: virtual machine name or UUID; backup image name; backup type, such as "daily" or "weekly"; integer is used to represent the number of polls

2.boot

Function: create virtual machine usage: nova boot [--flavor] [--image] [--image-with] [--boot-volume] [--snapshot] [--min-count] [--max-count] [--meta] [--file] [--key-name] [--user-data] [--availability-zone] [--security-groups] [--block-device-mapping] [--block-device key1=value1 [ Key2=value2...]] [--swap] [--ephemeral size= [ Format=]] [--hint] [--nic] [--config-drive] [--poll] [--admin-pass] [--description] Parameter:-- name of flavor flavor or ID (obtained through 'nova flavor-list') -- proof of image image or ID (via 'nova image-list');-- image-with image metadata feature (obtained through' glance image-show');-- boot-volume cloud disk launched from cloud disk ID;-- snapshot booted from snapshot (a cloud disk will be created) -- minimum number of virtual machines created by min-count (limited by quota);-- maximum number of virtual machines created by max-count (limited by quota);-- metadata of meta virtual machines;-- file stores arbitrary files from source address to destination address on newly created virtual machines (limited by the quota value of injected files) -- name of key-name key pair;-- user data file transferred by user-data through metadata server;-- availability-zone availability domain, used to host virtual machines;-- name of security-groups security group;-- block-device-mapping-mounted cloud disk in the format:

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