deduplication ratio for VEB backup files

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deduplication ratio for VEB backup files

Veeam Logoby UniSys » Thu Aug 13, 2015 7:57 am

Hi,

I am going to keep second copy of VEB backups on offsite server. I would like to save some disk space with Win2012 server deduplication. In my tests deduplication ratio is within 40-50% (eg. 315GB of backup files occupy 160GB of space on disk).

I have much better deduplication results with Veeam Backup and Recovery Free backup files (70-80%) when I use deduplication friendly compression.

Is there a way to enable deduplication friendly compression for VEB?

Is there some other trick to improve deduplication ratio for VEB backup files?

Thanks,
Nikolay
UniSys
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Re: deduplication ratio for VEB backup files

Veeam Logoby Dima P. » Thu Aug 13, 2015 1:21 pm

Hello Nikolay,
The deduplication is enabled by default and cannot be changed. However, for Veeam Backup and Replication repository as a target you could use the following options "Align backup file data blocks" and "Decompress backup data blocks before storing"
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Re: deduplication ratio for VEB backup files

Veeam Logoby Vitaliy S. » Thu Aug 13, 2015 1:53 pm

Nikolay, compression level cannot be changed in the UI as well, so you can try to follow Dima's advice to save more space on your repository.
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Re: deduplication ratio for VEB backup files

Veeam Logoby UniSys » Thu Aug 13, 2015 2:05 pm

Dima, Vitaliy, thanks for your replays.

Can I use repository of Veeam Backup and Replication free?
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Re: deduplication ratio for VEB backup files

Veeam Logoby Dima P. » Thu Aug 13, 2015 2:07 pm

Unfortunately, it’s not supported in free version of Veeam Backup.
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Re: deduplication ratio for VEB backup files

Veeam Logoby UniSys » Mon Aug 17, 2015 10:57 am

Dima, Thanks for explanation.

Another question: Win2012 R2 server deduplication has two options: general purpose file server and VDI server. Which one works better with VEB backup files?
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Re: deduplication ratio for VEB backup files

Veeam Logoby Vitaliy S. » Tue Aug 18, 2015 1:29 pm

I don't think that we have tested that, but backup structure of VEB files is the same as for Veeam B&R, and as far as I know people are using general purpose file server for storing these files.
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