topic Re: deduplication changes with 7.3.1 in ONTAP Discussions

deduplication changes with 7.3.1

jbarnett42 — Thu, 05 Jun 2025 07:31:39 GMT

have there been increases for the FAS3020c with release 7.3.1 ? or is the volume limitation still 1TB as it relates to deduplication ? I didn't see anything directly in the release notes for 7.3.1 or under the enhancements/changes section. Thanks in advance - Jeff

Re: deduplication changes with 7.3.1

adamfox — Wed, 21 Jan 2009 17:03:46 GMT

From digging a bit internally, it should be 2TB in 7.3.1.

Re: deduplication changes with 7.3.1

jbarnett42 — Wed, 21 Jan 2009 18:26:49 GMT

Thanks Adam, Do you have any documentation (or can you point me to some) that I can share with a customer that shows the increase ? The reason I ask is they've gottem conflicting answers so I'd really like to be sure before I get back to them. Thanks again. 😉

Re: deduplication changes with 7.3.1

adamfox — Wed, 21 Jan 2009 19:10:58 GMT

Haven't found any yet. Looks like the deployment guide needs updating.

Re: deduplication changes with 7.3.1

scottgelb — Wed, 21 Jan 2009 23:39:24 GMT

The ONTAP 7.3.1 onlinebk guide has the new limits. Attached is the page that shows the new limits.

Re: deduplication changes with 7.3.1

jbarnett42 — Thu, 22 Jan 2009 01:13:55 GMT

Your Awesome. Thanks Scott

Re: deduplication changes with 7.3.1

amiller_1 — Mon, 26 Jan 2009 19:05:46 GMT

Web link here....

http://now.netapp.com/NOW/knowledge/docs/ontap/rel731/html/ontap/onlinebk/protecting/reference/r_oc_prot_dedupe-considerations.html

Main items are higher dedup limits as well as can now shrink volume down to enable dedup.

Re: deduplication changes with 7.3.1

hempy — Tue, 21 Apr 2009 20:09:34 GMT

Here is a single PPT slide with the the Volume Size Limits for Data ONTAP 7.3.0 and below & 7.3.1 per model/memory.

Dave

Re: deduplication changes with 7.3.1

pauls_1 — Fri, 26 Jun 2009 11:43:16 GMT

I'm guessing that column #2 is the maximum physical volsize and column #3 is the maximum logical volsize.

True?

Also, does anyone know how to collect actual measurement data on dedup effecct from a system on a per-FlexVol basis? I don't think DFM reports on this. I think Manage ONTAP SDK might provide info, the new DFM Server SDK might, but I've not been able to get confirmation.

tia

Re: deduplication changes with 7.3.1

amiller_1 — Tue, 30 Jun 2009 03:14:46 GMT

Sure...3 methods actually (although only 2 work right now ).

Command-line -- "df -s" or "df -sh" to show a list of FlexVols and space/percent saved....quite a nice quick summary.
Operations Manager -- as of 3.8 it has good dedup reporting/graphs.
System Manager -- it allows you to enable/disable/run dedup from a GUI and has some graphing around dedup savings (although those graphs aren't accurate for me at 2 different customer so far).

Re: deduplication changes with 7.3.1

danielpr — Tue, 30 Jun 2009 07:54:31 GMT

>>3. System Manager -- it allows you to enable/disable/run dedup from a GUI and has some graphing around dedup savings (although those graphs aren't

>>accurate for me at 2 different customer so far).

Hi Andrew,

System Manager graphs shows the accurate output of "df -sh", it will be shown in the last run results.

Please check the thread and update your findings if you have any data.

http://communities.netapp.com/thread/3917

http://communities.netapp.com/message/10927#10927

Thanks;

Daniel

Re: deduplication changes with 7.3.1

amiller_1 — Tue, 30 Jun 2009 21:21:01 GMT

Just posted there....thanks for reminding me of that thread.