I see, if this is private network then this is a nice simple solution for caching. We plan to implement S3-caching in minio [https://minio.io] (i.e it will authenticate the requests and also do caching) in case you'd be interested for public facing caching proxies.
Minio will always be 100% free software / open source. We have no plans to add any proprietary extensions or hold back on features for paying customers only. -- Minio Team
Our current stable version can export single disk or multiple disks (using erasure coding providing protection against disk failures) As it is very easy to get started with (single binary, thanks to Go) people find it attractive for dev/test environments.
To replicate for HA (even for the single server version), use "mc mirror -watch SOURCE TARGET" command to pair them up. If you have multiple drives (JBOD), you can eliminate RAID or ZFS and use Minio's erasure code to pool them up. Distributed version is also in dev/testing at the moment. It should be out in a month.
It will be useful for any situation where you want to quickly share your terminal. Have you used tmux/screen tools? Nutty will be useful in similar situations where tmux/screen is used but nutty works even if the peer is behind firewall. Plus you can use webrtc when sharing terminals using nutty as it runs in the browser.