[Owncloud] Chaining owncloud servers via webdav

[Jörn Friedrich Dreyer]

Im using owncloud with davfs2 on linux. Cache size set to 15GB so nearly  
everything I access regularily is cached locally. unfortunately my server only 
has 50GB of space and I will run out of disk space with the next holiday 
pictures.

I'm thining of setting up an owncloud server at home (which has lots of space, 
but not the best upload) and use it as a file backend for my rented server.

Is this already possible with ownCloud itself? Or should I try davfs2 for this 
again?

Taking this Idea a step further I was thinking of running owncloud on the 
desktop. For this purpose I tried out Resin / Quercus to run php in a Java 
servlet container: http://www.caucho.com/projects-open-source/php-app-server-
quercus/

I got owncloud running after commenting the ZipArchive check (quercus 
implements the zip function but not the ZipArchive class). Im currently 
writing a sqlite module for quercus so I could package everything together and 
have owncloud run on every platform that runs java.

I could then chain my owncloud instance all together like this:
owncloud at home: slow upload, lots of space, dyndns ip, acting as storage / 
backup
owncloud at internet: fast access, limited storage on a rented server (~50GB 
space), acting as a fast cache
owncloud at client: local owncloud, encrypts/decrypts files acting as cache on 
every machine I own that runs java (2 laptops, a desktop ... possibly 
android), need their password seed aligned so I can access my files from 
everywhere
webdav at client decrypted access to the files in my owncloud

This way the owncloud at client instances are under my control (I dont even need 
admin rights as I just start a java program that opens a port I choose for web 
access). Files are encrypted locally and I can store huge amounts of data. For 
what I want I can even make the lucene based search backend index files on the 
clients and store the index encrypted, without loosing to much speed. Quercus 
even claims to speeds up php by 400%.

I can imagine owncloud provide a zip that conatins such a preconfigured client 
owncloud user just need to download, extract and run locally to have that 
functionality.

This all works when owncloud can use other owncloud instances as file backends 
and cache files like davfs2 does.

Did the sun finally melt my brain? Have I gone crazy? What do you all think? 

so long

Jörn

-- 
Jörn Friedrich Dreyer (jfd at owncloud.com)
Software Developer
ownCloud GmbH

Your Data, Your Cloud, Your Way!

ownCloud GmbH, GF: Markus Rex, Holger Dyroff
Schloßäckerstrasse 26a, 90443 Nürnberg, HRB 28050 (AG Nürnberg)