deduplication changes with 7.3.1

[jbarnett42]

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

[adamfox]

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

[jbarnett42]

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]

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

[scottgelb]

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

[jbarnett42]

Your Awesome. Thanks Scott

[amiller_1]

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]

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]

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]

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]

>>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]

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