This article covers backup procedures that must be used for different types of data including:
It is strongly recommended to back up the OS disk and software disk (LUN 0) of all cluster nodes after the initial cluster configuration and before and after applying any changes such as patch installation or security settings changes. Taking disk snapshots is the recommended method for backing up the disks.
Note that Azure Backup service is not currently supported due to its existing restrictions.
To create a backup of a cluster node VM
If the node is a database node, stop Oracle services.
# crsctl stop crs
Gracefully stop the instance.
# flashgrid-node poweroff
Create snapshot of the OS disk
Use standard RMAN procedures for backing up and restoring database files. A disk attached to one of the database node VMs is recommended as a backup destination. The disk must be attached with a LUN number 50 through 64 (LUNs 1 through 49 are automatically shared by Storage Fabric). The disk must be formatted with a local file system, such as XFS.
The disk image can be exported for storing the backup data outside of Azure.
Please follow Grid Infrastructure Backup and Restore Best Practices
For backing up and restoring files on ACFS use same tools and procedures that you would normally use for file-level backup and restore.