ONTAP Discussions

deduplication changes with 7.3.1

jbarnett42
7,626 Views

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

11 REPLIES 11

adamfox
7,601 Views

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

jbarnett42
7,601 Views

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. 😉

adamfox
7,601 Views

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

scottgelb
7,600 Views

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

jbarnett42
7,600 Views

Your Awesome. Thanks Scott

amiller_1
7,600 Views

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.

hempy
7,599 Views

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

pauls_1
7,599 Views

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

amiller_1
7,599 Views

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

  1. Command-line -- "df -s" or "df -sh" to show a list of FlexVols and space/percent saved....quite a nice quick summary.
  2. Operations Manager -- as of 3.8 it has good dedup reporting/graphs.
  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).

danielpr
7,206 Views

>>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

amiller_1
7,206 Views

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

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