HPE StoreOnce - Backup Copy Job & bad dedup ratio.

[orb]

Hi,

I am trying to get my head around a submitted problem where we witness a with a very bad dedup ratio (2:1) with Backup Copy Job.

Here is a little background.

Model is a 4700. Veeam is 9.5U4b
Backup works great! ratio is good goes easily to over 4.
No GFS is used, Jobs follow the best practices (except a few with over 14 retention points – *sight*, no supported either –
No StoreOnce licence is available, CIFS is used as a repository
The repository serves a Veeam Cloud Connect – I know this is NOT supported scenario (*re-sight*)
Repository is set to decompress

We know compress files, video, music aren’t good candidates … but for over 100 TB. It is hard to believe it is the reason.

Your inputs are welcome to see it clearer.

Oli

[Gostev]

Hi, Olivier. Honestly, this question is best directed to HPE support, as we cannot comment on why some 3rd party storage does not dedupe well. I expect HPE support should be able to analyze their internal device metrics and provide you the explanation of why they cannot dedupe the incoming content. Thanks!

[orb]

Hey Gostev,

It is part of the plan, but there are so many clever people here. I had to ask their share of experience

Thanks for your time.
Have a good week-end,

Oli