[[Category:Apps]]

Using CrashPlan on your Amahi HDA will allow you to back up, for free¹, all your computers into your Amahi HDA². It will also allow you to become the backup server of friends and family, if you'd like.

² Technically, it's also possible to backup your HDA into your other computers if you need that.</small>

To be able to use CrashPlan, you'll need to install the [http://www.amahi.org/apps/crashplan CrashPlan] application on your Amahi HDA, configure it as needed, and install the CrashPlan application on all the computers you'd like to backup to your HDA.

<h4>Please Note</h4> Crashplan makes very regular writes/reads to the directory it's configured to store backups in. As such, it's best not to point the target directory with in a Greyhole pool, as the number of operations builds beyond a functional level. The backup folder is best placed on a non-pooled disk, or of another type of managed volume or filesystem, such as BTRFS, ZFS, an LVM volume, RAID array, etc.

To learn more about CrashPlan, you can visit the [http://www.crashplan.com/consumer/features.html CrashPlan website], where features are explained, and where you can watch CrashPlan in action in their [http://b1.crashplan.com/consumer/features-tour.html video tour].

Using CrashPlan requires a (free) CrashPlan account. You'll be able to create a new account from the configuration app itself.

If you'd like to use different accounts, so that each computer (user) is the sole owner of his backed up files, this is also possible. Trying to restore such files from another computer (this is called a guest restore in CrashPlan) will require the user to enter the owner's password.

[[Open_Terminal_as_root|Open a terminal window as root]] and edit the following XML configuration file in your favorite text editor.

nano -w /usr/local/crashplan/conf/my.service.xml

'''ATTENTION the above changes are sometimes undone during crashplan updates, you have to repeat above steps to repair connectivity !!!!!'''

This example will show how to reconfigure the CrashPlan Desktop installation on a Windows PC to talk to the CrashPlan Engine instance running on your HDA.

You now should be able to administer CrashPlan using your HDA as the local storage location.

If you use the CrashPlan desktop on version 3.5.3 you may experience a Java error - when starting the Crashplan desktop the splash image shows for a few seconds, and then vanishes, but the application doesn't open.

[Source: [https://forums.amahi.org/viewtopic.php?f=26&t=4951 this forum post]]

See [https://support.code42.com/CrashPlan/4/Configuring/Using_CrashPlan_On_A_Headless_Computer Using CrashPlan On A Headless Computer] for guidance.

<p style="color:red">'''NOTE''' The CrashPlan UI sometimes has issues registering button clicks. If you click a button and it seems to do nothing, hit the ENTER key. That seems to help in such cases.</p>

The easiest way to configure CrashPlan is to access it from the HDA desktop directly.

If you don't have physical access to your HDA, or if you run it headless, try the methods below.

If you have [[VNC]] or [[WebVNC]] setup, you can use that to configure CrashPlan remotely, instead of using the OS-dependent methods described below.

The CrashPlan configuration application will start.

To use X-Forwarding, you don't need X running, or even installed on your HDA.<br/>

All you need is an X server on your client computer, and to SSH into your HDA with X-Forwarding enabled.

You'll need two things to be able to configure CrashPlan from Windows: PuTTY and Xming.

Enter your Fedora username and password when prompted.

FreeXer is an open source attempt to make X11 forwarding easy. It consists of PuTTY and Cygwin with a wrapper that configures both to enable X11 forwarding.

When ready, click on the ''Launch Session'' button.

Enter the following command to start the CrashPlan configuration UI:

Enter the same commands as noted above for the OS you are running on your HDA.

There are many guides available online that explain the steps of X11 forwarding. Here's some, if you need further help:

*[http://www.youtube.com/v/EsHuZJ5gORE?hl=en_US&fs=1 X Windows Forwarding video on YouTube]

* [http://www.math.umn.edu/systems_guide/putty_xwin32.html X Forwarding with Putty on Windows at University of Minnesota]

Open a Terminal (Applications > Utilities > Terminal.app)<br/>

and enter the following commands:

Once you're done with the CrashPlan configuration, you can close the CrashPlan app, the X11.app that appeared in your Dock, and Terminal.app

Starting on your X desktop (Gnome, KDE, ...), open a Terminal (Applications >System > Terminal in Fedora)<br/>

Once you're done with the CrashPlan configuration, you can close the CrashPlan app, and the Terminal.

You can follow the instructions on the CrashPlan wiki on [http://support.crashplan.com/doku.php/how_to/configure_a_headless_client how to connect to a headless CrashPlan install].

It requires you to install CrashPlan on your client computer, manually editing a config file, and using SSH port forwarding.