How Do I Know if I'm Using UFS or ZFS?

[Scribner]

How do I find which file system, UFS or ZFS, I am using?

 

[Phishfry]

gpart show

 

[jb_fvwm2]

"tunefs -p /dir" or "zfs list" shows the /dir ? [ /dir can be the root, etc.. ]. Don't know if
tunefs would work on a zfs pool or dataset... one not setup to check.
....
fstyp /dev/ada0p3 [ from a post below ]

 

[ralphbsz]

The easiest one: Just say "mount", it will give you a list of all mounted file systems.

 

[George]

fstyp() - determine file system type.

 

[bds]

mount | cut -f4 -d ' ' | tr -d '(,' | sort | uniq -c | sort -rn