The old version of smbfs I am referring to is 1.74. In that version, this cannot...
And that the smb server was samba (Version 4.1.17-Debian).
Forgot to mention that the A4000 is running OS3.9 and the A2000 is running OS3.1...
Writes larger than 16592 Bytes never complete with smbfs 1.102.