topic Re: AWS FSx ONTAP volume : efficiency in AFF

AWS FSx ONTAP volume : efficiency

ABisht — Tue, 10 Dec 2024 23:30:12 GMT

Not sure if its a right forum to check about specifics for AWS ONTAP FSx volumes but worth a try

I have volumes deployed on AWS ONTAP FSx with default storage efficiency setup. My understanding was that compression and de-duplication are default features for the FSx volumes. However I have recently discovered based on stats from various volumes [stats below] that de-duplication happens by default but there is no compression enabled.

Volume Contains Shared or Compressed Data: true
Space Saved by Storage Efficiency: 5.66GB
Percentage Saved by Storage Efficiency: 23%
Space Saved by Deduplication Along With VBN ZERO Savings: 5.66GB
Percentage Saved by Deduplication: 23%
Unique Data Which Got Shared by Deduplication: 5.65GB
Space Saved by Compression: 0B
Percentage Space Saved by Compression: 0%

I cannot try volume efficiency CLI as its disabled for AWS FSX ontap.

fsydcgml602::> set -privilege advanced

Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel.
Do you want to continue? {y|n}: y

fsydcgml602::*> volume

fsydcgml602::volume*>
activity-tracking analytics autosize clone
conversion create delete encryption
expand file flexcache flexgroup
modify mount offline online
qtree quota rebalance recovery-queue
rename restrict show show-footprint
show-space size snaplock snapshot
unmount

Is my understanding correct here?

Re: AWS FSx ONTAP volume : efficiency

chamfer — Wed, 11 Dec 2024 05:59:55 GMT

Hi @ABisht,

It does appear that the update-volume AWS CLI command should enable "deduplication, compression, and compaction storage efficiency features on the volume."

Reference: https://awscli.amazonaws.com/v2/documentation/api/latest/reference/fsx/update-volume.html

In Dec 2021 AWS+NetApp enabled compression for capacity tiers (in addition to SSD tiers) https://aws.amazon.com/about-aws/whats-new/2021/12/data-compression-amazon-fsx-netapp-ontap-file-systems/ so it should work.......

Re: AWS FSx ONTAP volume : efficiency

ABisht — Thu, 12 Dec 2024 02:37:46 GMT

hi @chamfer ,

We have enabled following for all our volumes.

storage_efficiency_enabled = true

but still there is no visibility of compression on our volume. Would u know of any volume property which I can check to ascertain that both compression and deduplication are enabled on our volumes.

Thank you