While NetApp first created ONTAP over 25 years ago, innovations are still being added today with ONTAP 9.4. ONTAP 9.4 brings NVMe, 100GbE, 30TB SSDs, and enhancements to several recently released features.
Fabric Pool was first released in ONTAP 9.2 as a feature that allows you to tier data off to cheaper object storage. Originally, Amazon S3 and StorageGRID were the available tiers – Azure Blob Storage was added as a tier on 9.3.
Fabric Pool works by running two processes in ONTAP to move ‘cold’ blocks of data to the cloud. The first is a temperature scanner which is constantly evaluating the ‘temperature’ of a block. Active blocks are ‘hot’ and blocks that haven’t been used in a while are ‘cold’. The second process finds cold blocks and moves them to the object storage tier if the aggregate containing the cold blocks is over 50% full.
Previously, ONTAP had two policies for Fabric Pool. One that moved backup data and another that moved blocks only used by Snapshots. A new policy has been added in ONTAP 9.4 that will move any cold block in the volume to the object storage. This new policy also allows the user the specify the time that it takes for a block to become eligible to move to object storage. This information is also reported back to the storage administrator through the CLI and ONTAP System Manager.
NVE Secure Purge
NetApp Volume Encryption Secure Purge is important for any enterprise looking to abide by the new GDPR standards. The goal with secure purge is that the deleted data cannot be recovered from the physical media at a later point in time. To do this, ONTAP will remove any data from the filesystem which contains remnants of the deleted files. After this, it will re-encrypt the data which is leftover with new keys. This ensures that the data cannot be recovered.
NVMe deserves it’s own post in the future but I’ll give a quick overview of the capabilities of NVMe in ONTAP 9.4 here.
With ONTAP 9.4 and the AFF A800, NetApp is first to the market with end-to-end NVMe. It includes NVMe drives in the AFF A800, NVMe over fabrics with Brocade Gen-6 Fibre Channel switches, and frontend host connectivity. FC-NVMe can be be used to deliver lower latency, more bandwidth, and more IOPS. It can also be implemented with a non-disruptive upgrade to existing AFF A-Series controllers including the A300, A700, and A700s.
For more information about ONTAP 9.4 and other things NetApp has going on, head over to the NetApp Blog