Constraints¶
General¶
A vault can be associated with only one backup policy.
A vault can be associated with a maximum of 256 resources.
A maximum of 32 backup policies can be created.
Only backups in the Available or Locked vaults can be used to restore data.
Backups in a Deleting vault cannot be deleted.
When Storage Disaster Recovery Service (SDRS) is used to set up disaster recovery for cloud servers, restorations can be performed at the disaster recovery site only after protection is disabled.
Backups cannot be downloaded to a local PC or uploaded to OBS.
A vault and its associated servers or disks must be in the same region.
Cloud Disk Backup¶
Only disks in the Available or In-use state can be backed up.
A new disk must be at least as large as the backup's source disk.
Cloud Server Backup¶
A maximum of 10 shared disks can be backed up with a cloud server.
Only backups in the Available or Locked vaults can be used to create images.
Images cannot be created from backups if the amount of resources associated with a server backup vault exceeds the quota.
Only ECS backups can be used to create images.
You are advised not to back up a server whose disk size exceeds 4 TB.