Decentralize your services unchain your data…

Regarding my article : Apple silently removed calendar and contact sync in Mavericks from the recent past I have decided that I want to move my data away from cloud services as much as possible. Therefore I thought about possible solutions and found out the following:

owncloud is the alternative for me regarding iCloud sync for files, calendar and contacts because own cloud support calDAV and cardDAV as proposed by apple to use instead of the missing SyncServices. owncloud provides client apps for iOS and Android so it can be used like dropbox or google drive and also has a quite comfortable webinterface.

The problem arising was where to install that to because I do not have server hardware at the ready at home. A short google later I was sure I had to by a rasperry pi B model because raspbian (OS) got good remarks and owncloud was available there. For a mere contact, calendar and a little filesharing my 16GB 95MB/s SD card seemed more than enough and I can tell you it is.

A few hours later I was ready to install the rasperry pi following the instructions on the links below to put an image on the sd card, boot the system, configure the system, overclock the system (on your own risk) and install and test the owncloud package:

  1. How to flash an SD card for rasperry pi
  2. Install owncloud on the raspberry pi (german)

I tested afterwards how this works out if I connect the rasperry to my NAS (Gigabit LAN for NAS but not for rasperry) and found out that this method is too slow for owncloud to work properly. Use at least a directly connected USB hard drive/stick or a fast SD card (SDHC 95MB/s was used here). Uploads are suprisingly fast using the iOS client (I had no opportuniy yet to test the Android client). So far I was able to test the file sharing options. Therefore I recommend to create a folder for each user which is then marked as shared for the users you want to share the folder and put your data (images, videos…) in there you want to show the others on your cloud (this can be your parents, children, friends, it is up to you).

So if you follow the above links it would be easy to get your own cloud up and running at nearly no time.


  • Rasperry Pi Model B 38 €
  • Rasperry Pi compatibel power adapter 9,99 €
  • Rasperry Pi compatible casing 6,99 €
  • Sony SDHC 16GB 95MB/s 16€

So if you believe it or not you can have your own little linux server spending not much more than 75 €. You can spend a little more if you need bluetooth or a camera module but for a cloud server the list above is sufficient.

In the near future you should keep an eye on arkOS where Jacob Cook is working on a distribution containing all of the above in one with a piece of software for configuration and setup which will fit also simple users to setup their own cloud. So stay tuned.

Next steps I have to report about in the near future:

  • backup of the entire system to a NAS or external storage
  • connecting the cloud to the internet so the data are accessible also from the outside



2 Kommentare zu „Decentralize your services unchain your data…

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  1. Afaik does the owncloud app only sync file? I experienced this some time ago and therefore had to install additional third party apps for CalDAV and CardDAV. But until this harsh beginning (needing additional apps, which at least worked well from the beginning) its working ok. But recently I checked out Baikal ( its work a look!

    For Contacts I used:

    For Calendars I used:

    1. Hi, the current release of owncloud also include calendar and contact app (on the server side) and supports calDAV and cardDAV for syncing then with the native clients on your phone. I have to test this and will report here, as mentioned

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