The file systems that are supported by Oracle Solaris 11 are as follows:
Disk-based file systems: HSFS, PCFS, UDFS, UFS, and ZFS
Network-based file systems: NFS and SMB
Virtual file systems: CTFS, FIFOFS, MNTFS, NAMEFS, OBJFS, SHAREFS, SPECFS, and SWAPFS
Temporary file system (TMPFS)
Loopback file system (LOFS)
Process file system (PROCFS)
UFS is a legacy file system, but it is not supported as a bootable root file system. ZFS is the default root file system. For more information about ZFS file systems in Oracle Solaris, see the Data Management web page and Transitioning From Oracle Solaris 10 to Oracle Solaris 11.3.