On Apr 9, 2012, at 11:42 PM, Stephen wrote:

> ok here is something i haven't considered in this way.
> 
> Openfiler with drbd

drbd is great if both cluster nodes are in the same data center. Over the internet… not so much. The latency will kill your performance. In its sanest/safest configuration, the drbd block device won't tell the filesystem that a write is done until the data is on-disk on both cluster nodes. So latency to the secondary node is a crucial performance bottleneck.

Check it out for your scenario, though. If you have the right pre-requisites, drbd is pretty great.

alex