Backup/Restore and DR service overview¶
- The Backup/Restore and DR service provides an easy way to backup and restore
- your OpenStack workloads to different storage. 
- The Backup and restore service consists of the following components:
- freezer-api 
- freezer-agent 
- freezer-scheduler 
 
- The Disaster Recovery service consists of the following components:
- freezer-dr 
 
The service features a RESTful API, which can be used to maintain the status of your jobs, backups and metadata.
This chapter assumes a working setup of OpenStack following the base Installation Guide.
Concepts and definitions¶
- freezer-apiservice
- Accepts and responds to end user API calls… 
- freezer-schedulerservice
- Does API calls to - freezer-apito schedule, fetch, update or Delete backup jobs.
- freezer-agentservice
- Python application run on the same node like - freezer-schedulerand it gets called by- freezer-schedulerto execute backups/restore operations.
- freezer-drservice
- Independent service from all other freezer services. It runs on the control plane to do disaster recovery in case of any compute node failed (more to follow) 
hostname is _probably_ going to be the host fqdn.
backup_id defined as UUID of a backup.
