Inline storage efficiency enabled by default on AFF systems

Contributors

Storage efficiency features are currently enabled by default on all newly created volumes on AFF systems. Beginning with ONTAP 9.2, all inline storage efficiency features are enabled by default on all existing and newly created volumes on all AFF systems.

Storage efficiency features include inline deduplication, inline cross-volume deduplication and inline compression, and are enabled by default on AFF systems as shown in the table.

Note

Data compaction behavior on AFF volumes is unchanged in ONTAP 9.2 as it is already enabled by default.

Volume conditions Storage efficiency features enabled by default in ONTAP 9.2

Inline deduplication

Inline cross-volume deduplication

Inline compression

Cluster upgrade to 9.2

Yes

Yes

Yes

ONTAP 7-Mode transition to clustered ONTAP

Yes

Yes

Yes

Volume move

Yes

Yes

Yes

Thick-provisioned volumes

Yes

No

Yes

Encrypted volumes

Yes

No

Yes

The following exceptions apply to one or more inline storage efficiency features:

  • Only read-write volumes can support default inline storage efficiency enablement.

  • Volumes with compression savings are omitted from enabling inline compression.

  • Volumes that have postprocess deduplication turned on are omitted from enabling inline compression.

  • On volumes where volume efficiency is turned off, the system overrides the existing volume efficiency policy settings and sets it to enable the inline-only policy.