You can use either a raw partition or a file system for all databases.
SAP ASE supports the database devices on NFS- and CIFS-mounted devices with network appliance filers for storing data. Network appliance filers provide the same performance and data integrity as raw devices. No operating system or SAP ASE changes are required.
NFS-mounted devices have been tested on Solaris, HP-UX, IBM AIX, and Linux.