The docs state:
"On systems with 1,000s of ZFS file systems, provision 1 GB of extra memory for every 10,000 mounted file systems including snapshots."
What does that mean - how do these people use ZFS? Are they using ZFS inside per-user mounted files? Or does it refer to really huge datacenters??
I always thought ZFS advocates for a single file-system, a giant one. Why do the docs talk about people mounting 1000s??