Disk Space Issue

Availability for the Always-On Enterprise

Re: Windows report wrong free space of dedub Volume

Veeam Logoby Mike Resseler » Tue Apr 18, 2017 7:26 am

Hi Marcin,

One of the things with dedupe is that files (or at least the chunks) are moved to a hidden folder (system volume information) and stored over there. You are not the first one that reports that the UI is not showing what it needs to show. But that is a Microsoft thing :-)

Can you run this in PowerShell (as administrator): measure-dedupfilemetadata

That should give you the necessary information
Mike
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby djwheele » Tue Apr 18, 2017 7:49 am

Thank You for Your answer.

I will run "your command" . Do You know how long it could take?
Is there any possibility to free more space ?

Marcin
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby Mike Resseler » Tue Apr 18, 2017 10:58 am

It should only take a few seconds to give you the numbers.

I am not sure what you mean by "freeing more space"?
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby djwheele » Tue Apr 18, 2017 11:05 am

so something is wrong on my server...
It is running about 2h and I still do not have a results ...

I have only something like this:

measure-dedupfilemetadata -path j:\
0/1 completed

<unknown>
Running, 00:00:00 remaining

Do You know what could happend ?
Marcin
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby Mike Resseler » Tue Apr 18, 2017 11:18 am

Hi Marcin,
I gave you the wrong command. Sorry

Cancel that one and do this:
Get-DedupStatus -Volume J: (will give you free space, saved space, # of optimized files, # of in policy files)
Get-DedupVolume - Volume G: (will give you savedspace and savingsrate and the Usage Type)

The one you are doing indeed will take quite some time and the data known from that one can be interesting, but let it run on an evening and get the result in the morning
Mike Resseler
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby djwheele » Tue Apr 18, 2017 11:21 am

I have a result right now

PS J:\> measure-dedupfilemetadata -path j:\

Path : {j:\}
Volume : J:
VolumeId : \\?\Volume{469c965e-86cf-4972-9e43-b28ae20c1927}
FilesCount : 281
OptimizedFilesCount : 54
Size : 26.76 TB
SizeOnDisk : 6.83 TB
DedupSize : 2.67 TB
DedupChunkCount : 73604189
DedupDistinctSize : 2.39 TB
DedupDistinctChunkCount : 69209945
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Re: Windows report wrong free space of dedub Volume

Veeam Logoby Mike Resseler » Tue Apr 18, 2017 11:42 am

It seems to me that you have quite a few files not optimized. What is your setting? If I am not mistaken every file not changed for the last 3 days will be optimized is the default.
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Re: Disk Space Issue

Veeam Logoby djwheele » Tue Apr 18, 2017 12:18 pm

I have in my settings

"Deduplicate files older than 1 day"

In schedule

The process starts 2 times a day: 12 AM and 11 PM. Duration 12 hours
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Re: Disk Space Issue

Veeam Logoby Mike Resseler » Tue Apr 18, 2017 12:57 pm

So either you have exclusions (a lot) or most of these files are being updated within the day. Can you verify?
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