FSx for ONTAP storage efficiency

NetApp ONTAP offers block-level storage efficiency features including compression, compaction, and deduplication that can save you up to 65% in storage capacity for general file shares, without sacrificing performance.

Amazon FSx for NetApp ONTAP also supports other ONTAP features that save you space, including snapshots, thin provisioning, and FlexClone volumes.

Managing storage efficiency features

Storage efficiency features are not enabled by default. You can enable them as follows:

• On an SVM's root volume when you create a file system.

• When you create a new volume.

• When you modify an existing volume.

Viewing storage savings

When enabled, you can see how much storage capacity you are saving in the Amazon FSx console, the Amazon CloudWatch console, and the ONTAP CLI.

To view storage efficiency in the Amazon FSx console

The storage efficiency savings displayed in the Amazon FSx console for an FSx for ONTAP file system includes the savings from FlexClones and SnapShots.

1. Open the Amazon FSx console at https://console.aws.amazon.com/fsx/.

2. Choose the FSx for ONTAP file system that you want to view storage efficiency saving for from the list of File systems.

3. Choose the Monitoring tab on the second panel in the file system details page.

4. The Storage efficiency savings chart shows how much space you are saving as a percentage of your logical data size and in physical bytes.

Viewing storage efficiency using the ONTAP CLI

You can see storage efficiency savings of just compaction, compression, and deduplication – without the effects of snapshots and FlexClones – by running the storage aggregate show-efficiency command using the ONTAP CLI. For more information, see storage aggregate show-efficiency in the NetApp ONTAP Documentation Center.

Calculating storage savings

You can use the LogicalDataStored and StorageUsed FSx for ONTAP CloudWatch file system metrics to calculate storage savings from compression, deduplication, compaction, snapshots, and FlexClones. These metrics have a single dimension, FileSystemId. For more information, see File system metrics.

• To compute storage-efficiency savings in bytes, take the Average of StorageUsed over a given period and subtract it from the Average of LogicalDataStored over the same period.

• To compute storage-efficiency savings as a percentage of total logical data size, take the Average of StorageUsed over a given period and subtract it from the Average of LogicalDataStored over the same period. Then divide the difference by the Average of LogicalDataStored over the same period.