You can make a copy of a storage volume at any instant. A snapshot of a storage volume is another storage volume.
Source Storage Volume Properties
If the existing storage volume is a bootable storage volume, then the new storage volume is also a boot volume. The new storage volume is an exact copy of the source storage volume, that is independent of the source. If the source storage volume is attached to a running instance, then you must unmount or freeze the disk buffers of the storage volume before taking a snapshot:
sync fsfreeze -f path-to-disk-mount-point
After creating the new volume, log in to the instance and enable the original file system. If the file system is unmounted, mount the file system. If the file system is frozen, then unfreeze it using the following command:
fsfreeze -u path-to-disk-mount-point
To create a snapshot of the storage volume:
Use the following command to create a snapshot of a storage volume:
oracle-compute add storagevolume name size properties [--source_storagevolume_name] source_volume_name
For more information, see CLI Reference for Oracle Compute Cloud Service.
To create a snapshot of a storage volume using the API, use the
POST https://api.oc.example.com/storage/volume/ method.
For more information, see REST API Reference for Oracle Compute Cloud Service.