I was more thinking in the GlusterFS direction. And actually, for me it does not matter on which layer the replication and distribution takes place. Could also be some http based distributed key value store. As long as it scales and is fault tolerant. Markus Am 12.11.2012 21:54 schrieb "Philipp Marek" <philipp@marek.priv.at>:

...

Can anybody recommend a redundant replicated storage solution stable enough to act as basis of production system?

It will be used to store and serve video data to the web and to transcoding nodes.

Any recommendations? DRBD. With 8.4 you can have up to 4 nodes (with identical data) with stacking, with DRBD 9 you can get 3,4,5-way redundancy in a flat hierarchy.

Very stable, OSS, included in standard Linux kernel since 2.6.33.

Disclaimer: I work for LINBIT.