heredago's blog

June 25, 2012

How to get crashplan to backup to network share / unraid / mapped drive

Filed under: Uncategorized — Tags: , , , , , , — heredago @ 21:10

In addition to backing up to the paid crashplan central, I want my stuff to get backed up locally on my unraid network share:

“After much screwing around I was finally able to get Crashplan to back up to the unRAID box via Network Share.

Out of the box Crashplan won’t back up to a network share saying it doesn’t have the correct permissions.  Here’s how I got around it.

1)  Create a folder somewhere.  I created mine at c:\crashPlanBackup
2)  Open up CrashPlan and go to the Destinations tab of the ap.  Click “Folders” and find your new folder. Leave CrashPlan running and the Destinations tab open.
3)  Delete the new folder you created and just pointed CrashPlan to.
4)  Open a command prompt and create a hardlink to the network share.    Type mklink /h “c:\crashPlanBackup” \\tower\sharename  –  Hit return.  You can also mount the share so it has a drive letter and do it this way mklink /h “c:\crashPlanBackup” s:  if I remember correctly. (some people will want to use the /D switch (instead of /H) on the mklink if they get the “Local NTFS volumes are required to complete the operation” error

You’ve now tricked CrashPlan into thinking that the folder you added was a local folder and it’s not.  Working like champ!  For as little as $3 more per month  you can have your data back up to their cloud service as well.  Redundancy!  I imagine there would be no reason you couldn’t trick CrashPlan into backing up your network shares to their cloud and really make them wonder if $3 a month for unlimited storage was a good idea :)

Source: http://lime-technology.com/forum/index.php?topic=17672.0

crashplan backup to network share

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9 Comments »

  1. All I’m getting is a “destination unavailable” from Crashplan.

    Comment by Josh Saterdalen — August 17, 2012 @ 21:22

  2. This USED to work for me. I had been using it like this for over a year. Recently I reimaged my windows7 pc and tried to set it up this way again. For the life of me I cannot get it working again. Everything I read says network shares are not possible…grr.. I know this is just not true UNLESS Microsoft has changed something recently in a patch. I suspect there is some perfect storm scenario that allows this to happen. My ReadyNAS NV+ has 800gb of backup data from friends and family that were linked from c:\ReadyNAS\Crashplan to prove it.

    Comment by Greg Moyle — February 13, 2013 @ 14:34

  3. I had one stop working as well. When I tried to recreate what I did I couldn’t get it to work until I realized that you have to do all of this as the System User. It will not work otherwise. Also, I couldn’t get it to work at all with Windows XP until I found this link http://helms-deep.us/how-to-get-crashplan-to-work-with-windows-xp-and-nas-or-mapped-drives/ It doesn’t give you a step by step walk-through but it provided the key piece of information I was missing for XP once I hit a couple of links.

    Comment by Voluble — March 26, 2013 @ 19:41

  4. got the local ntfs volumes error and then used the /d command. Now I get the “you do not have sufficient privilege to perform this operation” error. I am loged in as a user with admin privledges, Win 7. Any advice?

    Comment by RAW — May 22, 2013 @ 21:50

  5. Excellent! Thank You! Run CMD as Administrator and remove the quotes from your example.

    Comment by Anonymous — May 23, 2013 @ 20:02

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    Comment by metal sheds — June 14, 2013 @ 00:18

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    Comment by best online backup service — August 10, 2013 @ 11:08

  8. I have tried this, but I think I am missing something.
    What does the \\tower\sharename refer to? I have a WD 2tb drive plugged into the usb of a Dlink 636 wireless router. Would I substitute something for the \\tower\sharename? Thanks for your help!

    Comment by ptt — September 16, 2013 @ 20:32

  9. … so i tried to use a drive letter. like z:. Got it to work.

    First create a directory place holder. Map it in CrashPlan. Delete it.

    Open 2 cmd windows. One as Administrator and one as your normal user.

    In the admin window type
    net use z: \\\ * /user:
    mklink /d “c:\<placeholdername" z:

    then in the non-admin window type
    net use z: \\\ * /user:

    Comment by Anonymous — October 13, 2014 @ 17:02


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