SOLVED Improve crashplan slow transfer speeds

[zfrogz]

Went from 2mbps transfer speeds to 18mbps. Dedup seems to be a common bottleneck. Here is how to disable it.

Code:

ee /usr/pbi/crashplan-amd64/share/crashplan/conf/my.service.xml

Scroll down until you find:

Code:

<dataDeDupAutoMaxFileSizeForWan>0</dataDeDupAutoMaxFileSizeForWan>

Change the 0 to a 1

Code:

<dataDeDupAutoMaxFileSizeForWan>1</dataDeDupAutoMaxFileSizeForWan>

Save and restart the service

Code:

service crashplan restart

Credit to alter3d
http://networkrockstar.ca/2013/09/speeding-up-crashplan-backups/

This may not be a good tweak for everyone if you have large frequently changing files being backed up.

By quitting the de-dupe after one changed byte, we stop de-duplicating after one altered byte. This means that even if the rest of the file has been backed up, we back it up again. Since CrashPlan is engineered to back up your newest data first, this modification could result in a constant upload of the same "new" data, leaving older—and possibly more important—data completely unprotected.

Official full statement here:
http://lifehacker.com/we-were-very-proud-when-lifehacker-readers-voted-us-the-1659807506

 

[Spacemarine]

This didn't change anything for. I'm still at 2 Mbps, although my line could do 10 Mbps. I'm extremely unhappy with crashplan, especially after I spent days getting it to work!

 

[zfrogz]

Are you sure you changed the right setting? It should look like this:

<dataDeDupAutoMaxFileSize>1073741824</dataDeDupAutoMaxFileSize>
<dataDeDupAutoMaxFileSizeForWan>1</dataDeDupAutoMaxFileSizeForWan>

Before I changed this, one of my CPU cores was pegged and had super slow uploads which were getting slower with time. It's backing up about 10tb of data. I also disabled compression since most of my data isn't compressible. My data is mostly static and rarely changes. If this isn't your scenario, you might have a different issue.

 

[Spacemarine]

Yes, my settings looked exactly like this. I changed it back and forth a few times, didn't make a difference. I always selected a new, 500 MB file and deleted the old backup, still got 2 Mbit/s every time. When I backup my FREENAS to my Windows-machine (also running crashplan) I get around 50 Mbit/s, so the CPU shouldn't be the bottleneck here.