When you use a NAS device to provide VOB storage, create one or more VOB storage locations on your NAS device (as described in Creating server storage locations on a NAS device) and then use mkvob –stgloc to create VOBs in this storage location.
cleartool mkvob –tag \nasvob –stgloc nasvobstg
cleartool mkvob –tag /vobs/nasvob –host vobsvr1 –gpath /net/nasdevice/vobstg/nasvob.vbs \
–hpath /net/nasdevice/vobstg/nasvob.vbs /net/nasdevice/vobstg/nasvob.vbs