I do not get it.
Why would I use zfs for this? Isn't the power of zfs that it's a filesystem with checksum and stuff like encryption?
Why would I use it for s3?
I've got a massive storage server built that I want to run s3 protocol on it. It's already running ZFS. This is exactly what I want.
zfs-share already implements SMB and NFS.
> Why would I use it for s3?
You have it the wrong way around. Here, ZFS uses many small S3 objects as the storage substrate, rather than physical disks. The value proposition is that this should be definitely cheaper and perhaps more durable than EBS.
See s3backer, a FUSE implementation of similar: https://github.com/archiecobbs/s3backer
See prior in kernel ZFS work by Delphix which AFAIK was closed by Delphix management: https://www.youtube.com/watch?v=opW9KhjOQ3Q
BTW this appears to be closed too!