Technical data

NFS Server
20.10 Maintaining a Container File System
Table 20–2 Container File System Components Analyzed
UNIX Item
OpenVMS
Conceptual
Equivalent Description
Super block Home block Contains the basic information on the
internal structuring of the container file.
Inode File header Each file or directory has an inode that
contains information describing the file.
The inode is a central definition of the
file.
Directory Directory Contains the file names and directory
hierarchy information. File name
entries contain links to the inode
information.
Bitmap BITMAP.SYS Contains the container file internal
allocation information. Only one bitmap
exists in the container file.
For a complete description of the ANALYZE CONTAINER command and
its qualifiers, see the Compaq TCP/IP Services for OpenVMS Management
Command Reference manual.
20.10.7 Restoring a Container File System
For a typical image restore, follow normal OpenVMS procedures.
For a nonimage restore, an additional step is required after the restore. The
Files–11 file identifiers are recorded in the container file. These must be updated
by the TCP/IP management command ANALYZE CONTAINER /REPAIR.
This extra step is also required for an image restore if the save set is being
restored with the /NOINITIALIZE qualifier to a volume with a different label or
if it is being restored to a bound volume set that has a member that was added
since the time of the image backup.
20.11 Setting Up NFS Security Controls
The NFS server and the OpenVMS operating system provide many levels
of security controls you can use to protect your file systems. Section 20.1.3,
Section 20.1.4, and Section 20.1.7 describe how the server uses the proxy and
export databases to restrict client access, and how to use OpenVMS account
privileges and file protections to control access to files and directories.
The NFS server provides additional security controls through the use of the
noproxy_enabled attribute. You can set this attribute in the NFS server site-
specific startup file SYS$STARTUP:TCPIP$NFS_SERVER_SYSTARTUP.COM.
The server uses this attribute while it is running. If the attribute is set, a
proxy is not required for users attempting to access the NFS server. For more
information about the NFS server attributes, see Table 20–3.
20–16 NFS Server