NetBackup for OpenStack terminologies
The following table defines the terms you will come across when using NetBackup for protecting OpenStack.
Table: NetBackup terminologies
Terminology | Definition |
|---|---|
Compound job | A backup job for OpenStack data is a compound job.
|
Discovery job | When a backup job is executed, first a discovery job is created. The discovery job communicates with the controller node and gathers information of the instances and associated volumes (cinder) that needs to be backed.. At the end of the discovery, the job populates a workload discovery file that NetBackup then uses to distribute the workload amongst the backup hosts. |
Child job | For backup, a separate child job is created for each backup host to transfer data to the storage media. A child job can transfer data blocks from multiple OpenStack servers. |
Parallel streams | The NetBackup parallel streaming framework allows the instances and associated volumes (cinder) backed up using multiple backup hosts sequentially. |
Backup host | The backup host acts as a proxy client. All the backup and restore operations are executed through the backup host. You can configure media servers or clients as a backup host. The backup host is also used as destination client during restores. |
BigData policy | The BigData policy is introduced to:
|
Application server | Controller node is referred to as an application server in NetBackup. |