UnixWare requires either the DOS or NFS name space in order to access
a NetWare volume. Because the DOS name space is required by NetWare on
all volumes, you can mount and access any NetWare volume from UnixWare.
When we talk about accessing a NetWare volume from UnixWare, we speak in
terms of the access mode of the volume. A volume with only the DOS name
space supports only one access mode, the DOS mode; a volume with the
NFS name space (and the NUC NLM) can support either
of two modes, the NetWare mode or the UNIX mode.
The access mode that you choose for a particular NetWare volume determines
a number of things, summarized in the following table.
DOS Mode (no NFS name space support)
NetWare Mode (requires NFS name space)
UNIX Mode (requires NFS name space)
Maintenance
low
high (user and group ID coordination on the network required
for accurate owner and permission mapping)
same as NetWare Mode
Ownership Presentation
inaccurate
accurate (assuming accurate user and group ID coordination)
same as NetWare Mode
File Sharing
See note
See note
See note
Performance
low impact
low impact on UnixWare side, medium-to-low impact on NetWare side
potentially high impact on NetWare side (accurate ownership and permission
mappings require trustee assignments)
same as for DOS Mode, plus supports hard and symbolic links
same as NetWare Mode
Changing Ownership
not supported
not supported
supported
Changing Permissions
limited support
limited support
full support
Long File Names
not supported; only 8.3 and DOS characters
supported (up to 255 characters)
same as NetWare Mode
Links
not supported
hard and soft supported
same as NetWare Mode
Running Applications
only DOS-style file access supported; no permission or ownership changes
supports UnixWare style access and names, but no permission or ownership
changes
full support for running UnixWare applications
NOTE:
With file sharing, all modes allow both NetWare and UnixWare users to
see the same files and directories on NetWare volumes and access them.
Regardless of how ownership and permissions are displayed on the UnixWare
side, access to a file on NetWare is granted or denied on the basis of
the effective rights of the NetWare login ID (used to
authenticate to the server) on the file.