NS0-157 · Question #231
With clustered data ONTAP 8.2 and later, which statement is true about deduplication and Flex Vol sizes?
The correct answer is D. Deduplication is supported up to the maximum volume size for the platform. Clustered ONTAP 8.2 removed earlier fixed deduplication volume size caps, allowing deduplication to scale to the full maximum FlexVol size supported by the platform.
Question
With clustered data ONTAP 8.2 and later, which statement is true about deduplication and Flex Vol sizes?
Options
- ADeduplication is supported up to half the maximum volume size for the platform
- BDeduplication is limited to 16 TB
- CDeduplication is limited to 32 TB
- DDeduplication is supported up to the maximum volume size for the platform.
How the community answered
(28 responses)- A4% (1)
- C4% (1)
- D93% (26)
Why each option
Clustered ONTAP 8.2 removed earlier fixed deduplication volume size caps, allowing deduplication to scale to the full maximum FlexVol size supported by the platform.
No 'half the maximum volume size' restriction for deduplication exists in clustered ONTAP 8.2 or later - this is not a documented limit.
A 16 TB deduplication volume limit applied to older pre-clustered ONTAP releases and was not carried forward into clustered ONTAP 8.2.
A 32 TB deduplication volume limit applied to earlier ONTAP versions and was superseded when clustered ONTAP 8.2 aligned deduplication limits with platform maximums.
Beginning with clustered ONTAP 8.2, NetApp eliminated the previously fixed deduplication size limits and tied deduplication support directly to the platform's maximum FlexVol volume size, meaning no separate deduplication ceiling exists independent of the platform's volume capacity limit.
Concept tested: Clustered ONTAP 8.2 deduplication FlexVol size support
Source: https://docs.netapp.com/us-en/ontap/volumes/enable-deduplication-volume-task.html
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