topic Re: How to disable cross-volume-deduplication on all flash aggregate (FAS8300) in ONTAP Discussions

How to disable cross-volume-deduplication on all flash aggregate (FAS8300)

kp01 — Mon, 22 Mar 2021 10:09:37 GMT

Hello

I'm testing cross-volume-deduplication on all flash aggregate (FAS8300).

After deleting test volumes (enabled -cross-volume-background-dedupe true), deleting and recreating aggregate (different name), zeroing disk spares with (-use-physical-zeroing).

Array shows me that aggregate still has :

Cross Volume Background Deduplication: true
Cross Volume Inline Deduplication: true
Has Cross Volume Deduplication Savings: true

> volume efficiency show
This table is currently empty.

> aggr efficiency show

Has Cross Volume Deduplication Savings: true
Cross Volume Background Deduplication: true
Cross Volume Inline Deduplication: true
Has Auto Adaptive Compression Savings false
5 entries were displayed.

How to clear this configuration?

I tried to change :

aggr efficiency modify -aggregate xxxxxxx -cross-volume-background-dedupe false

aggr efficiency modify -aggregate xxxxxxx -cross-volume-inline-dedupe false

And aggregate still has : (Has Cross Volume Deduplication Savings: true )

Re: How to disable cross-volume-deduplication on all flash aggregate (FAS8300)

jcolonfzenpr — Mon, 22 Mar 2021 14:27:45 GMT

Try this with advance privilege:

https://docs.netapp.com/ontap-9/topic/com.netapp.doc.dot-cm-cmpr-930/storage__aggregate__efficiency__cross-volume-dedupe__revert-to.html

Hope this answers your question.

Re: How to disable cross-volume-deduplication on all flash aggregate (FAS8300)

liu — Tue, 17 Dec 2024 07:49:45 GMT

Enter the advanced permission

Used to recover cross-volume deduplication savings on aggregates

This version is 9.3

storage aggregate efficiency cross-volume-dedupe revert-to