OCI File Storage is a fully managed, network-attached storage system that offers high scalability, high durability, and high availability for your data in any Oracle Cloud Infrastructure availability domain. OCI File Storage supports the Network File System (NFS) version 3 protocol with Network Lock Manager (NLM) for the locking mechanism to provide POSIX semantics. This enterprise-grade file storage service scales up to meet your storage needs and can be accessed concurrently by thousands of compute instances. You can start with a file system that contains only a few kilobytes of data and scale to 8 exabytes of data without any up-front provisioning. Moreover, your data and metadata are protected with encryption at rest by default, and you have the option to enable encryption in transit as well. Additionally, snapshot capabilities give copy-on-write local replication of your data, and File Storage replication provides replication of file systems across availability domains or across regions.
You should use File Storage when:
File Storage provides consistency of traditional NFS files, operational flexibility, remove storage administrative and maintenance tasks with simple pay-per-capacity pricing. As soon as you delete your data, you don't pay for that.
File Storage supports a broad range of use cases, including the following ones:
Any application that uses NFS version 3 works with minimal to no modification with File Storage. This includes Oracle applications and solutions such as Oracle E-Business Suite, and any enterprise applications that needs scale-out access or storage space.
To learn more about these components, watch the short Video on File Storage components.
By default, File Storage lets you create 100 file systems and 2 mount targets in every availability domain of your choice. Each file system can grow to 8 exabytes of data. You can create 10,000 snapshots of every file system. For a list of default settings and instructions for requesting an increase, see Service Limits.
File Storage supports NFS version 3, including a file locking mechanism that uses Network Lock Manager (NLM) protocol. File Storage works with common NFS version 3 clients, including those on Linux, Solaris, and Windows, as well as Oracle's Direct NFS driver. For instructions on how mount from Unix-style and Windows systems, see Overview File Storage.
our data is replicated for durability within each availability domain in a highly available infrastructure that implements industry-leading data protection techniques and best practices. OCI File Storage service is designed to provide 99.999999999% (eleven 9s) annual durability for file systems. We recommend making regular backups of file-system snapshots or using File Storage replication to protect against the failure of an availability domain or region.
File Storage service lets you create snapshots by using the web-based Console, command line interface (CLI), or REST APIs, or from the file system itself by creating a directory in the file system's .snapshot directory. Snapshots provide a read-only, space-efficient, point-in-time view of your entire file system. File Storage snapshots employ copy-on-write and consume storage space only when data changes. You are billed only for the storage space that your snapshots use for the delta of your changed data.
For an overview of File Storage and its concepts, see the File Storage documentation. You can create a file system and mount to it with only few clicks in the web-based Console. You can also use the REST APIs , CLI and Terraform to create file systems and mount targets.
After creating a file system and a mount target, access your file system from your compute instances. Log in to an instance to install the NFS client and mount to your mount target. For information about installing the NFS client, see the following mounting instructions for each instance type:
File Storage is physically located in every Oracle Cloud Infrastructure availability domain—you can access it from anywhere! To access it within a region, you need only to ensure that your security rules are correctly configured to allow NFS traffic. For more information, see Configuring VCN Security List Rules for File Storage. For on-premises connection to your file system, you also need FastConnect or a virtual private network (VPN). Accessing a file system from an instance in a different Oracle Cloud Infrastructure availability domain incurs a small performance penalty because of the network latency that exists between availability domains.
For information about removing locks from a file system, see the File Storage documentation.
Use File Storage replication to replicate the snapshots to another availability domain or region. You can also use rsync, tar, or any third-party tool that supports NFS version 3 to copy your data to another Oracle Cloud Infrastructure availability domain or region, to Oracle Cloud Infrastructure Object Storage, or to your on-premises storage.
Within a region, you can use standard tools like scp, rsync, or SSHFS to move data. Because File Storage can be accessed from multiple compute instances concurrently, you can improve copying speeds with parallel uploads. If you want to bring data from outside of a region, use a VPN or a FastConnect to mount to your file system from your on-premises data center. For additional options, please visit Data Transfer Service and Storage Gateway.
File Storage provides several ways for you to ensure that your data remains secure. Use these methods together to restrict access to your file systems.
For more information about how different types of security work together in your file system, see About Security.
You can use NFS export options on export paths to limit access. Export paths are specified when a file system is associated with a mount target. The export path uniquely identifies the file system within the mount target, letting you associate up to 100 file systems behind a single mount target. The export path is appended to the mount target IP address, and used to mount (logically attach) to the file system. The export path exists solely as a way to distinguish one file system from another within a single mount target. For more information, see Paths in File Systems.
After you create a file system, set security options on your export paths for granular access control. For example, you can limit root user access, require connection from a privileged port, or completely deny access to some clients. For more information about access control lists with NFS export options, see Working with NFS Export Options.
File Storage uses AES 256 for encryption at rest for newly created file systems, with unique Oracle-provided encryption keys for each file system. You also have the option to encrypt all of your file systems using the keys that you own, managed by the Key Management service. Additionally, File Storage provides the option for configuring encryption in transit for all data and metadata. Data encryption in transit uses Transport Layer Security (TLS) 1.2 to encrypt data sent between your clients and your filesystems.
To optimize the performance of File Storage, consider the following guidelines:
You can replicate File Storage to another availability domain and/or another region. File Storage replication allows up to three replication sessions per file system.
Snapshots provide a consistent, point-in-time view of your file system, and you can take as many snapshots as you need. You can turn any snapshot into an independent live read-write file system instantaneously by cloning snapshots. With File Storage replication, you can create clones across availability domains or across regions by cloning replicated snapshots on the target side.
If you have more questions, contact Oracle File Storage Product Management at email@example.com.