To know what ==CrashPlan is, you can read it's [http://www.amahi.org/apps/crashplan app page].on Amahi==
==How Using CrashPlan on your Amahi HDA will allow you to configure==back up, for free<sup>1</sup>, all your computers into your Amahi HDA<sup>2</sup>.<br/>It will also allow you to become the backup server of friends and family, if you'd like.
<sup>1</sup> While CrashPlan is free to personal use, an advanced version, CrashPlan+, is available for a fee, if you'd like to get the [http://b1.crashplan.com/consumer/features.html#CrashPlan+ features it adds to the free CrashPlan version].<br/>
<sup>2</sup> Technically, it's also possible to backup your HDA into your other computers if you need that.
==Installing CrashPlan==
To be able to use CrashPlan, you'll need to install the 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.
==More about CrashPlan==
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].
==CrashPlan Accounts==
Using CrashPlan requires a (free) CrashPlan account. You'll be able to create a new account from the configuration app itself.
You'll probably want to use the same account for all computers in your home. That means you'll create the account on the first computer you configure CrashPlan on (it can be your HDA, or any other computer on your home network), and then simply use that same account on all other computers, instead of creating new accounts.
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.
==How to configure CrashPlan on your HDA==
===Windows===
TODO
===Mac OS X===
Open a Terminal (Applications > Utilities > Terminal.app)<br/>
and enter the following commands:
<div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px;">
ssh -X hda<br/>
CrashPlanDesktop<br/>
</div>
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
===Linux===
Open a Terminal (Applications >System > Terminal in Fedora)<br/>
and enter the following commands:
<div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px;">
ssh -X hda<br/>
CrashPlanDesktop<br/>
</div>
Once you're done with the CrashPlan configuration, you can close the CrashPlan app, and the Terminal.