ONTAP 9 Manuals ( CA08871-402 )

Inline storage efficiency enabled by default on ETERNUS AX/AC series

Storage efficiency features are enabled by default on all newly created volumes on ETERNUS AX/AC series. All inline storage efficiency features are enabled by default on all existing and newly created volumes on all ETERNUS AX/AC series.

Storage efficiency features include inline deduplication, inline cross-volume deduplication and inline compression, and are enabled by default on ETERNUS AX/AC series as shown in the table.

Data compaction behavior on ETERNUS AX/AC series volumes is enabled by default.

Volume conditions Storage efficiency features enabled by default

Inline deduplication

Inline cross-volume deduplication

Inline compression

Cluster upgrade

Yes

Yes

Yes

ONTAP 7-Mode transition to 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.

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