HP StorageWorks 8000 NAS - Manual (Page 75)

Configuring Your System and Network 73
Co
nfig
uring
Yo
ur Sy
ste
m
a
nd
Ne
tw
ork
Configuring User and Group Mapping
Understanding User and Group Mapping
This screen lets you map Windows users/groups, who use the Server
Message Block Protocol/Common Internet File System protocol (SMB/CIFS),
to UNIX users/groups, who use the Network File System protocol (NFS):
■ SMB/CIFS, the Windows protocol for sharing files, lets client applications
read and write to files. CIFS is a standard protocol that lets programs
request files and services on remote computers over the internet. CIFS uses
the client/server programming model. A client program makes a request
of a server program (usually running on another computer) for access to a
file or to pass a message to a program that runs on the server computer.
The server takes the requested action and returns a response.
■ NFS, the UNIX protocol for sharing files, is a client/server application that
lets a user view and optionally store and update files on a remote
computer as though they were on the user's own computer.
Note User or group mapping is available only when you select user-
level security on the Windows Security screen. User or group
mapping using names is most useful when NIS is enabled.
The NAS server maintains a mapping of users/groups between the two
protocols. If a Windows user/group is not mapped to an existing UNIX user/
group ID, then when the Windows user/group accesses the NAS server for
the first time, a new UNIX user/group ID is generated and the Windows
user/group is mapped to it.
Mapping users/groups improves:
■ Adherence to file and directory permissions
■ Compliance to disk quotas
■ Display of file and directory ownership