What dedupe are you seeing for Veeam Agent 2.0?

Backup agent for Microsoft Windows servers and workstations (formerly Veeam Endpoint Backup FREE)

What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby mtellier » Tue Jun 20, 2017 3:13 pm

We have a Windows 2012 file server that is a VM hosted on VMware. The file server has iSCSI LUNS direct to Nimble Storage Volumes and have installed the Veeam Agent for Windows version 2.0 for backup.
The backup agent is working, but were getting de-duplication of 1.2x on Volume level backup. Our test backup consists of 2 volumes and 1.1TB of files, like user home directories and department shares. Were planning on doing a weekly full backup and daily incremental, this one server hosts about 6TB of data to backup. We typically see > 2.x for block level backups in a normal backup job.

Here is our configuration (Full Backup):
Compression Level: Optimal
Storage Optimization: LAN Target
Processed: 1.1TB
Read: 1.1TB
Transferred: 964.6GB (1.2x)

Backup storage is a Synology Rackstation with 10Gbps interface.

I contacted technical support, they had me change Compression to Dedupe-friendly and Optimization to WAN target. Using these settings there was absolutely no savings on the backup size, Processed 1.1TB, Read 1.1TB and Transferred 1.1TB.

Anyone else experience the same de-dupelication for file backup? What about Exchange backup with the agent?
mtellier
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby Dima P. » Wed Jun 21, 2017 10:04 pm

Hi Mark,

Good deduplication results can be achieved when you are using a deduplication storage. For instance take a look at this post - it shows impressive savings while using native Windows 2012 deduplication repository.
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby SDMatt » Wed Sep 20, 2017 9:02 pm

I'm seeing almost zero deduplication with Veeam Agent 2.0, at least when using the file level backup option.

To test this I copied a 600 MB folder to the machine, and then created a second identical copy of that 600 MB folder. My backup grew by 1.17 GB.

I'm working through a volume level backup as a test now.
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby SDMatt » Thu Sep 21, 2017 4:15 pm

I used the same method that I did in the previous post for a volume level backup... and I see the same results. Zero noticeable space savings.

To test I created a volume level backup.. ran the 1st full backup, then ran another to establish a minimum baseline for the file size of an incremental. I then copied a 600 MB folder to the machine, and then created a second identical copy of that 600 MB folder. Then I ran a 3rd backup. If dedupe was really working I'd expect my backup would increase in size by 600 MB, but it increased by about 1.2 GB (Settings used Extreme Compression / Wan Target).

For giggles, I changed the settings to Compression to Dedupe-friendly and Optimization to WAN target and re-ran the test.. backup size was 1.3 GB

IMHO - this product doesn't dedupe.
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby SDMatt » Mon Sep 25, 2017 4:30 pm

Page 2 of the Editions Comparison document lists built-in deduplication as a feature of the free version of the product.
https://docs.google.com/document/d/1EWB0T4_YpIOmPXNuVyRkEcTFpS9Puig7IlIjxeQzGrc/edit?usp=sharing

Here's a link to the doc
https://www.veeam.com/veeam_agent_windows_2_0_editions_comparison_ds.pdf

Something isn't right here.
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby mtellier » Mon Sep 25, 2017 5:44 pm

After adding additional volumes totaling 7.1TB, a full backup size is 5.2TB or 1.4x backing up to a NAS.
mtellier
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby Dima P. » Tue Sep 26, 2017 11:29 am

Matt,

Deduplication engine was taken from our flagship product Veeam B&R. In Veeam B&R we see the best deduplication ratio when VMs with similar operating systems are being backed up (frankly speaking, the best thing to dedupe is operating system files). If you want to achieve good deduplication ratio between you backup files – try to use repository with deduplication feature, for example Windows repository with deduplication feature enabled.
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Re: What dedupe are you seeing for Veeam Agent 2.0?

Veeam Logoby SDMatt » Tue Oct 03, 2017 2:23 pm

Thanks Dima,

Veeam's inability to perform decent deduplication without some sort of add on (3rd party software, deduplication storage device) has always been on my list of beefs with the product.

I'm disappointed to find out that this is working as designed.
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