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Learn about ONTAP dedicated offload processor storage efficiency

Contributors netapp-aherbin netapp-dbagwell netapp-lenida netapp-pcarriga
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Dedicated offload processor storage efficiency performs sequential packing of contiguous physical blocks and uses a dedicated offload processor for 32k data compression. With 32k compression, space saving is realized at the aggregate level, unlike systems using 8k adaptive compression, where space saving is realized at the volume level. Systems that use dedicated offload processor storage efficiency do not use temperature-sensitive storage efficiency (TSSE), meaning compression is not based on hot or cold data. This results in immediate space savings without any performance impact.

QuickAssist Technology (QAT) support is required for dedicated offload processor storage efficiency and is supported on the following systems. It is enabled by default on the listed AFF systems.

Note AFF A20 systems do not support dedicated offload processor storage efficiency. For AFF A20 systems, data that’s migrated using SnapMirror technology is converted automatically to 32k inline compression using the main CPU.

  • AFF A-Series systems: AFF A1K, AFF A90, AFF A70, AFF A50, AFF A30

  • AFF C-Series systems: AFF C80, AFF C60, AFF C30

  • FAS systems: FAS90, FAS70, FAS50

ASA r2 systems and AFX systems also support QAT and default enablement of dedicated offload processor storage efficiency.

For the following systems, storage efficiency is enabled automatically and requires no configuration. This applies to all newly created thin-provisioned volumes and existing data, including volumes moved from other systems. Deduplication is enabled regardless of the space guarantee setting. Compression and data compaction both require that the space guarantee be set to none. Data that’s migrated using volume move or SnapMirror technology is converted automatically to 32k inline compression.

  • AFF A-Series systems: AFF A1K, AFF A90, AFF A70, AFF A50, AFF A30

  • AFF C-Series systems: AFF C80, AFF C60, AFF C30

For the following systems, storage efficiency is enabled by default only on existing thin-provisioned volumes that had storage efficiency enabled before upgrading to ONTAP 9.15.1 or later. You can enable storage efficiency on newly created volumes using the ONTAP CLI or ONTAP REST API. Data that is migrated using volume move or SnapMirror technology is converted to 32k inline compression only if compression was enabled on the original platform.

  • FAS90

  • FAS70

  • FAS50

For information about upgrading a controller to one of the supported systems, see the ONTAP hardware upgrade documentation.