Fas - storage efficiency mode - efficient

[heavy barn]

Hi all,
Got asked to assist in configuring some additional volumes and snapmirror relationships at a customer.
I copied the same volume settings from the existing ones. The snapmirror is to a FAS with only spinning disks.
The current volumes have storage efficiency mode - efficient configured. I thought that was only for AFF. Looking at the documentation, it is.
https://docs.netapp.com/us-en/ontap/volumes/change-efficiency-mode-task.html
All systems running 9.15.1P5 (upgraded from 9.14.1 in december)
See output:
Volume show:
NA-MetroDC01-SVM-NFS-BCK NA01_T0_EXC_veeam_bck efficient
When I create or try to modify a volume:
NA-BCKDC01::*> volume create -vserver NA-MetroDC01-SVM-NFS-BCK -volume testmm -storage-efficiency-mode efficient -size 10t -aggregate aggr1_NA_BCKDC01_02
Error: command failed: The "-storage-efficiency-mode" parameter is only supported on AFF.

Any ideas?

Kind regards,
Martijn

[tardy trail]

Hve you tried the "volume efficiency ???" commands? I'm pretty sure most of the efficiency stuff will work on AFF as well s FAS... And even on spinning disks. On spinning disks you might not be able to enable inline dedupe (or you may have to force it) because of performance... But you can always setup an efficiency policy with a scheduled dedupe run... "post write"... Not sure why you are unable to set it up at volume creation, but just create the volume, and then run "volume efficiency on -volume ..." We have a lot of snapmirror destinations where it starts a post snapmirror update efficiency run...

[heavy barn]

Volume efficiency works fine. It is the volume efficiency mode which cannot be setbit somehow is present on the existing volumes. Tried every command during creation and afterwards using modify.

[tardy trail]

I know there are some special options you can set on the aggregate which enables "stuff"... like if you have a FAS with and SSD aggregate and want it to work like an AFF (inline everything)... I will try to find it tomrrow..

[tardy trail]

Not an aggregate option, but a node option.. described here: https://kb.netapp.com/on-prem/ontap/DM/Efficiency/Efficiency-KBs/How_to_enable_volume_inline_deduplication_on_Non_AFF_All_Flash_FAS_aggregates

As you can see it can have performance impacts... I have ever only enabled this for SSD aggregates on FAS Nodes...

[heavy barn]

Thanks, will check if this makes the option available to set the storage efficeincy mode.