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Mobile Data Protection Services

About

The SCS Data Protection Service is available to SCS users for mobile devices that are CMU-owned and running an operating system supported by SCS Computing Facilities, including:

  • Windows 7
  • Windows 8.1
  • OS X 10.7 Lion
  • OS X 10.8 Mountain Lion
  • OS X 10.9 Mavericks
  • Ubuntu 12.04

The data protection system used on the above platforms is Druva inSync. Important features of this service are:

  • Data is copied while the client machine is connected to any network.
  • Multiple restore points are possible for files that change often.
  • Users may restore data themselves, either to the original client machine or to another system.
  • Users may adjust, to an extent, what data is protected, as well as some operational characteristics of the client.

Important notes

  • Mobile hosts are not automatically enrolled in the Mobile Data Protection Service; this must be specifically requested. See the section below on how to tell if a host is being backed up if you are uncertain if your host is enrolled.
  • Data copied from hosts to the data protection server is not archived to tape. Six months of restore points are maintained on the server; data older than six months is removed automatically. The most recent copy of the data from the mobile client will always be available for restores.
  • In the default configuration, the mobile client checks for file changes every hour and uploads any changed file to the server. This interval is configurable by the user.
  • Mobile clients are currently limited to protecting approximately 250GB of data.
  • If there is an alternate host you would like the restored data to be placed, use the web interface to the Druva server to retrieve the data on the alternate host. You should use the URL: https://dps-1.srv.cs.cmu.edu.
  • In order to enable mobile data protection, you must install the Druva client software on your mobile computer. You should have received an e-mail from SCS Computing Facilities with instructions on where to retrieve the client and how to configure it.

Determining what data is protected

As mentioned above, hosts are not automatically enrolled in the Mobile Data Protection Service. You must contact SCS Computing Facilities at help@cs.cmu.edu to enroll your mobile computer in this service.

All non-removable file systems are automatically scanned for files to be copied. In the default configuration, the files which are copied to the server are:

  • Office files
  • Image files
  • PDF
  • HTML
  • Video files

In addition, all files under "My Documents", "Desktop" and "Favorites" (or the equivalent locations under the Mac and Linux OSs) are copied, as well as certain system and application settings.

Executable files, including files ending in ".exe", ".com", ".bat", as well as library files (including ".dll", ".sys" and ".drv") are not copied to the server. Executable files and their associated libraries must be recovered from their installation media.

User customizations

The end user can customize certain settings in the Druva client including modifying what data is protected, as well as some performance characteristics of the client itself. To change the settings, right-click on the Druva inSync client in the task bar (the icon looks like a green dot with an arrow surrounding it) and click "open inSync client".

  • The end user can modify the list of files which are copied, and add new file types and directories, but cannot modify the list of "excluded" files. In the inSync client, select "Summary". The current list of directories and files being protected is shown. Click "Add" to add an additional directory to the list.
  • The interval at which the client checks for changed files can be changed to values between every 20 minutes to every week. The default setting is to copy files every hour, which is the recommended value. Click on the "Preferences" item on the main inSync screen.
  • The amount of network bandwidth and system CPU consumed by the client can be adjusted from the "Preferences" page. We recommend that younot change these settings from the unless directed to do so by SCS Computing Facilities; changing these settings may prevent the Data Protection Services from working correctly.

Special requirements

Because data is copied from hundreds of Mobile hosts nightly, machines with special data protection requirements need to be handled on a case-by-case basis. Special requirements such as:

  • Data storage larger then 250GB
  • Large amounts of data that change on a frequent basis
  • Data archiving or data written to tape

can be accommodated through the traditional TiBS-based backup system. Contact help@cs.cmu.edu for more information.

How to tell if a client is enrolled in the Mobile Data Protection service

Your mobile system must have the Druva inSync client installed in order to receive Mobile Data Protection. Normally, the Druva client will have an icon in the task bar and an entry in the Start menu. To check the status of your data protection, you can click on the Druva inSync icon in the task bar (or start the client through the Start menu). On the main client page, it will show the last time that the client successfully copied files to the server.

How to restore data

Users can restore data that has been copied to the Mobile Protection server either themselves or through the SCS Help Desk.

To perform a self-initiated restore, open the Druva inSync client by right-clicking on the icon in the task bar (or though the Start menu). Select the "Restore" option from the main client page. You will be shown a directory listing of all the folders and files that are available on the server, along with a series of possible "restore points", which are the times that the data was copied. You should select the file(s) needed and the version of the data and select either

  • "Restore to device" (to restore the file(s) to the original device), or
  • "Download" (to restore it to the system you are running on).

If you are not running on a machine that is running the Druva inSync client, you can download the needed file by opening this URL in a web browser: https://dps-1.srv.cs.cmu.edu. The procedure for selecting the file is the same as above.

To request a restore through the SCS Help Desk, send mail to help@cs.cmu.edu with the following information:

  • Name of the machine the file(s) were located on.
  • Name of the Machine and path on the new host if there is an alternate host you would like the restored data to be placed.
  • The full path to the requested file(s). Please make sure that these are the actual paths of the file(s) and not a shortcut to them.
  • The last known dates during which the file(s) existed.

E-mail containing instructions on how to access restored files will be sent to you after the restore is complete.

For answers to frequently asked questions about the Druva data protection system, please see the Mobile Data Protection FAQ page or contact the SCS Help Desk at help@cs.cmu.edu if you would like assistance or have any additional questions.