Managing aggregate-level inline deduplication on AFA systems
Aggregate-level deduplication eliminates duplicate blocks across volumes belonging to the same aggregate. Beginning with ONTAP 9.5, you can perform aggregate-level deduplication inline on AFA systems. The feature is enabled by default for all newly created volumes and all upgraded volumes with volume inline deduplication turned on.
About this task
The deduplication operation eliminates duplicate blocks before data is written to disk. Only volumes with the space guarantee set to none can participate in aggregate-level inline deduplication. This is the default setting on AFA systems.
Note
Aggregate-level inline deduplication is sometimes referred to as cross-volume inline deduplication.
Manage aggregate-level inline deduplication on AFA systems:
| If you want to... | Use this command |
|---|---|
| Enable aggregate-level inline deduplication | volume efficiency modify -vserver <vserver_name> -volume <vol_name> -cross-volume-inline-dedupe true |
| Disable aggregate-level inline deduplication | volume efficiency modify -vserver <vserver_name> -volume <vol_name> -cross-volume-inline-dedupe false |
| Display aggregate-level inline deduplication status | volume efficiency config -volume <vol_name> |
Examples
The following command displays the aggregate-level inline deduplication status:
wfit-8020-03-04::> volume efficiency config -volume choke0_wfit_8020_03_0
Vserver: vs0
Volume: choke0_wfit_8020_03_0
Schedule: -
Policy: choke_VE_policy
Compression: true
Inline Compression: true
Inline Dedupe: true
Data Compaction: true
Cross Volume Inline Deduplication: false
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