[scaladev]

>since many e.g. file systems don't implement async IO

If we're picking on Linux here we should also mention that this issue cannot exist on Windows because it doesn't support anything else besides NTFS and a couple of options dating back to the 18th century or so.

Oh, and WinFS, of course, F being short for future which is like the horizon, or the communism, always out there just a month or two away.

[tinus_hn]

You can actually for example get drivers for APFS for Windows from third party vendors.

[scaladev]

Sure, and there are third party drivers for ext* and btrfs and god knows what else… but we're talking about official support here, I think. You can find all sorts of craziness in out-of-tree patches for the Linux kernel.

[vl]

They also have ReFS - new filesystem in NT Server.