When I try to change this with na_ontap_volume_efficiency module I get:
failed: [nfv-zur3-zone -> localhost] (item=zur3_nfs_datastore1) => {"ansible_loop_var": "item", "changed": false, "item": "zur3_nfs_datastore1", "msg": "Error in volume/efficiency patch: cannot modify storage_efficiency mode in non AFF platform."}
from the CLI:
nfv-zur3-stoclu01::*> vol efficiency modify -volume zur3_nfs_datastore1 -storage-efficiency-mode efficient
[Job 10721] Job succeeded: Successful
The system in question:
system node show
Node Health Eligibility Uptime Model Owner Location
nfv-zur3-sto01 true true 115 days 02:24 AFF-A220 Zurich
nfv-zur3-sto02 true true 00:05:32 AFF-A220 Zurich
Happened on other systems too.