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dedup time and disk utilization

I have a bunch of very large NFS volumes I need to run dedup on.

The problem is I must run it during the weekends since when running the dedup, disk utilization is nearing 100% and latency sky rockets during that time.

Unfortunately, it never finishes before monday morning and I'm forced to cancel it.

For some reason, maybe by design, Im unable to pick up where I left a week later and it starts the whole process from the top which bring to me an endless loop where I cannot dedup.

Any idea what I can do?

Thanks

TL;DR;

dedup creates high disk latency

must stop on weekdays

does not resume on following weekend.

Re: dedup time and disk utilization

Hi eladgotfrid1,

It can be done using the deduplication check point feature..

Have a look at this url

Starting the deduplication with the checkpoint feature

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-1F2B6445-B428-4346-BDA7-E0C560110DB3.html

Resuming the deduplication from where it was stopped or halted with the check point feature.

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-523E669C-55A2-402E-B06D-5F4FE9A54226.html

Hope this may help u, let me know if you require any info.

Regards,

Hari.

Re: dedup time and disk utilization

Hi eladgotfrid1,

For additional info, you can refer these threads,

https://communities.netapp.com/message/114081#114081

https://communities.netapp.com/message/12181#12181

Regards,

Hari.