Storage is available as either shares or volumes. A storage volume is a virtual disk that provides persistent block storage space for instances, and a share is an NFS share that provides filesystem storage in the Oracle SPARC Model 300 Service. You can attach the full capacity of the ZFSSA storage (approximately 32 TB or 60 TB, depending on the revision of the service purchased) to your instances for storing data and applications in any mix of volumes and shares.
You can use storage volumes to:
Store data and applications.
Serve as a persistent boot disk for the Oracle Solaris Zones. To do this, create a zone, attach one or more storage volumes to it, and then specify the associated volume as the boot disk for the zone.
Scale the block storage capacity up or down by attaching or detaching storage volumes.
You can use shares to:
Easily share data between applications and instances.
When using storage with your instances, the full capacity of the ZFSSA is available. Once this capacity is exhausted, additional capacity is not available. You will need to expand into alternate data storage services available in the Oracle Cloud.