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pesos
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weird result with windows agent job

Post by pesos »

Hi all,

We have veeam o365 writing a few jobs to an REFS drive. Roughly 6 or 7 TB of data.
Now we have created a Windows agent job in B&R to back up those job folders to our hardened repo.
The job has been running about 16 hours, has gone up to 99% and been there for hours, and shows an insane amount of TB processed and copied when in reality only about 4ish TB of data has hit the repo from what I can tell.
Is this normal (we've never done a windows agent job before, only hyper-v)?

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Mildur
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Re: weird result with windows agent job

Post by Mildur »

Hello John

Seems to be a bug.
Do you have a case number? If not, please open a case and let our customer support troubleshoot the issue. We cannot investigate such an issue over a forum post. Without a case number, this topic may be deleted by a moderator.

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Fabian
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pesos
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Re: weird result with windows agent job

Post by pesos » 1 person likes this post

thanks, case 07092739
pesos
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Re: weird result with windows agent job

Post by pesos » 1 person likes this post

finally completed over 40 hours later. says 2.3 petabytes processed and 587 terabytes transferred lol. Actual is 8 TB (which lines up with what it says was "read" down in the job details. Will upload logs to the case now that it completed.
Mildur
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Re: weird result with windows agent job

Post by Mildur »

Thank you John. That‘s a huge amount :D
Let‘s see what we can find out.

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Fabian
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pesos
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Re: weird result with windows agent job

Post by pesos »

"Hello,

Thank you for contacting Veeam Support.
My name is xxxxx and I'll be assisting you with this case.
It looks like this was initial run of the job which suppose to take longer time.

All other runs should be incremental and take less time to complete."

:?
Mildur
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Re: weird result with windows agent job

Post by Mildur »

Hi John

That answer is generally true, but of course not related to the reported issue (2.3PB processed size).
Let me check the support case state.

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Fabian
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pesos
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Re: weird result with windows agent job

Post by pesos »

Thanks Fabian, yes that was my subtle point :-)

Appreciate you taking a look!
pesos
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Re: weird result with windows agent job

Post by pesos » 1 person likes this post

Got the private fix (since we weren't quite ready to move to 12.1 which has it included i guess?) but it looks like the windows agent process just isn't nearly as efficient as hyper-v... even the incremental apparently needs to read through the entire volume (40tb in our case) to process and back up ~8tb of data, so it was still going to take too long. Reworked things to move that data into a vm so we can do it all with hyper-v level backup. Thanks guys!
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Re: weird result with windows agent job

Post by SimonS »

You are doing File Level Backup (veeam (R:): enumerating directories) which is painfully slow on large LUNs.

Before migrating to HyperV, try to use Veeam Windows Agent with Volume Level Backup option.
pesos
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Re: weird result with windows agent job

Post by pesos »

Too late, but will keep that in mind for next time if there is one. Thanks!
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Re: weird result with windows agent job

Post by pesos »

p.s. - I'm not actually following what you mean. If I do a volume backup, that would back up the whole volume (40ish tb) which is exactly not what I want... I only want to back up a few folders (which constitute around 8 tb of data)...
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Re: weird result with windows agent job

Post by SimonS »

Yes. Volume level will backup up whole volume. I assumed the 40TB volume is used only for M365 repository.
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