Most of current block storage systems allow you to create volumes that span across multiple disks, but those disk must be on the same server. Is there any system that can create a volume that spans across multiple disk on multiple servers, and that volume can grow by adding more servers to the cluster?
Edit: for example, I need to write log continuously to a remote file. The file is never closed, so a caching model like those in object storage systems is not feasible. I'm looking for a solution that is similar to a SAN system, but 1 volume can be scaled beyond a single server.
