Which two storage efficiency features are enabled by default on AFF systems? (Choose two.)
Which two storage efficiency features are enabled by default on AFF systems? (Choose two.)
On AFF systems, volume-level inline deduplication and aggregate-level inline deduplication are both enabled by default. These features help optimize storage efficiency by removing duplicate data at the volume and aggregate levels, respectively. Compression features, while important, are not enabled at the aggregate level by default in AFF systems.
AD Beginning with ONTAP 9.2, all inline storage efficiencies features, such as inline deduplication and inline compression, are enabled by default on AFF volumes. Beginning with ONTAP 9.2, you can perform aggregate-level deduplication inline on AFF systems. The feature is enabled by default for all newly created volumes and all upgraded volumes with volume inline deduplication turned on.
A& D are right
A & D are right choice
As strange as it seems it is AD. Compression is on volume level so it can't be the correct answer
AD volume is default: https://docs.netapp.com/us-en/ontap/volumes/deduplication-data-compression-efficiency-concept.html aggr is default: https://docs.netapp.com/us-en/ontap/volumes/manage-aggregate-level-deduplication-aff-task.html
It would not make sense to do both volume and aggregate level dedup. It's B and D, see https://docs.netapp.com/us-en/ontap/volumes/deduplication-data-compression-efficiency-concept.html
AD is right