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HP c3700 - Workstation Supplementary Manual

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HP Enterprise File System
Planning and Configuring HP DCE/9000
Enhanced DFS Version 3.0
HP Part No. B6863-IE002-E0302
Edition 1
© Hewlett-Packard Company, 2002. All rights reserved.
2
Legal Notices
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Legal Notices
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under license from the Regents of the University of California.
©copyright 1980, 1984, 1986 Novell, Inc.
©copyright 1986-1992 Sun Microsystems, Inc.
©copyright 1985-86, 1988 Massachusetts Institute of Technology.
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4
Legal Notices
Contents
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Planning and Configuring HP DCE/9000 Enhanced DFS Version 3.0 1
1 About HP DCE/9000 Enhanced DFS
Overview of HP DCE/9000 Enhanced DFS Version 3.0 12
Benefits 13
Features 14
Restriction of RPC Addresses 14
DCE/DFS TCL Configuration Functions 15
Global Variables 15
System Tuning Variables 15
Administration Tools for Enhanced DFS 3.0 16
HP Enterprise File System Admin Web 17
Compatibility Information and Installation Requirements 18
Enhanced DFS 3.0 Interoperability 18
NIS and Integrated Login Interoperability 18
What Manuals are Available for This Version 19
2 Installing and Configuring Enhanced DFS 3.0
Planning for Enhanced DFS 3.0 Installation and Configuration 22
Preparing to Administer DFS 24
Considerations for Enhanced DFS 3.0 Installation and Configuration 25
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Contents
Before Installing and Configuring Enhanced DFS 3.0 27
To Install and Configure Enhanced DFS 28
Enhanced DFS 3.0 Filesets 29
Migrating root.dfs from UFS to Episode 31
Replicating root.dfs Using “Cheap Replication” 34
Handling of setuid Programs and Device Files in DFS 36
setuid Script 36
Additional DFS Cache Manager Commands 38
Stopping Enhanced DFS 43
Removing Enhanced DFS Configuration Information and DFS Cache
Files 44
Restricting RPC Addresses 45
Setting Global Variables 46
Using Tuning Variables 48
3 Running dce_config to Configure Enhanced DFS
Configuring a System Control Server 50
Configuring a DFS Fileset Location Database 52
Configuring a File Server and a Private File Server 55
Contents
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Configuring a DFS Client 57
dfs_config Environment Variables 60
A TCL Functions
DCE TCL Functions 64
Configuration Functions 64
Unconfiguration Function 75
Cleanup Functions 76
Miscellaneous Functions 84
DCE TCL Examples 112
Configuring a DCE Client 112
Configuring a Single-machine DCE Server 112
Configuring dced 113
Configuring secd 113
Configuring cdsd 114
Configuring dtsd 114
Configuring a Security Replica 114
Configuring a CDS Replica 115
Unconfiguring a Client (only) Machine from an Existing Cell 115
Removing a Machine from an Existing Cell 116
DFS TCL Functions 117
Configuration Functions 117
Unconfiguration Functions 124
Miscellaneous Functions 131
Examples of Primary DFS Functions 136
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Contents
B The DFS/NFS Secure Gateway
Overview of the DFS/NFS Gateway 140
Configuring Gateway Server Machines 143
Configuring a Gateway Server Without Enabling Remote Authentication 144
Configuring a Gateway Server and Enabling Remote Authentication 145
Configuring the BOS Server Process 146
Configuring the Gateway Server Process 148
Configuring NFS Clients to Access DFS 150
Configuring a Client Without Enabling Remote Authentication 151
Configuring a Client and Enabling Remote Authentication 152
Accessing DFS from an NFS Client 154
Unauthenticated Access to DFS 154
Authenticated Access to DFS 155
Authenticating to DCE from an NFS Client 157
Authenticating to DCE from a Gateway Server Machine 159
Determining Whether a Specific User is Authenticated to DCE 161
Displaying Information About All Users Who Are Authenticated to DCE 162
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About this document
This document describes features of HP DCE/9000 Enhanced DFS Version 3.0
specific to Hewlett-Packard. For features of standard DFS, see the OSF
documentation.
This book is organized as follows:
• Chapter 1 describes the benefits and features of HP DCE/9000 Enhanced DFS
and provides important compatibility information and installation requirements.
• Chapter 2 describes installing HP DCE/9000 Enhanced DFS.
• Chapter 3 describes configuring HP DCE/9000 Enhanced DFS.
• Appendix A provides information on DCE and DFS TCL functions, and provides
examples.
• Appendix B provides and overview of the DFS/NFS Secure Gateway and
describes how to configure a gateway server machine.
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11
1
About HP DCE/9000 Enhanced DFS
HP DCE/9000 Enhanced DFS Version 3.0 is a distributed file system
functionally equivalent to Version 1.2.2 of The Open Group (formerly Open
Software Foundation) DCE Distributed File Service (DFS). Enhanced DFS
is one component of the HP Enterprise File System product family.
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About HP DCE/9000 Enhanced DFS
Overview of HP DCE/9000 Enhanced DFS Version 3.0
Overview of HP DCE/9000 Enhanced DFS Version 3.0
HP DCE/9000 Enhanced DFS 3.0 is a distributed client/server application
that presents DCE with a global view of a set of files and directories,
independent of machine boundaries. This global view is called the Enhanced
DFS filespace. Within this filespace, users can share files stored on any of
the computers that are part of this global view.
Enhanced DFS requires the HP-UX 11.0 operating system and the
HP DCE/9000 Version 1.7 product. Enhanced DFS supports all
HP DCE/9000 DFS 1.7 functionality and protocols, and interoperates fully
with other DFS servers.
The client and server components of Enhanced DFS 3.0 are available as
separately orderable components.
NOTE: For this version of Enhanced DFS 3.0, only the client is available.
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About HP DCE/9000 Enhanced DFS
Benefits
Benefits
Enhanced DFS 3.0 provides a number of benefits, including the following:
• Allows faster restarts after abnormal system shutdowns using the DCE LFS log-
based file system
• Uses tokens to ensure that users are working with the most-recent copy of a file
and to track who is working on the file
• Allows administrators to replicate commonly used DCE LFS filesets on multiple
File Server machines
• Allows easier recovery from severe system failures
• Provides increased availability of files through replication and caching
• Improves load balancing of data
• Tracks the location of every fileset
• Extends the UNIX permissions to provide more precise definitions of access
permissions for directories and files using ACLs
• Allows the use of data from non-LFS file systems
• Allows the addition of server and client machines to an
HP DCE/9000 DFS
configuration with little impact on other servers or clients and with few additional
administrative responsibilities
• Supports enhanced administration and security
• Stores central copies of system configuration and binary files on designated
machines and distributes these files to other server machines in the network
• Backs up and restores system and user data as needed
Enhanced DFS 3.0 operates on top of and interacts with the following HP
DCE 1.7 components:
• DCE Security Service
• DCE Directory Service
• DCE Distributed Time Service
• DCE Remote Procedure Call facility
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About HP DCE/9000 Enhanced DFS
Features
Features
Enhanced DFS 3.0 offers complete HP DCE/9000 1.7 DFS server
functionality for distributed computing environments, which can include:
• Server machines
• Client machines
• Data access management
• Administrative domains
• Administrative lists and groups
• Local file system
• Database distribution
• The scout program
• Authenticated access from NFS via the gateway
In addition, Enhanced DFS 3.0 includes all extended DFS features.
Restriction of RPC Addresses
Enhanced DFS 3.0 includes restricting RPC addresses with the use of the
environment variable, RPC_SUPPORTED_NETADDRS. See the HP
DCE 1.7 planning and configuration guide for a description of this
environment variable.
The runtime looks for a RPC_SUPPORTED_NETADDRS environment
variable, which allows a user or administrator to restrict the network
addresses that a DFS host advertises in the name-space or endpoint-map.
If you set this environment variable, only addresses in the list will be
advertised in the namespace or endpoint map. Addresses not found on the
list are excluded from the server’s list of available addresses.
For information on using this feature, see “Restricting RPC Addresses” in
Chapter 2.
15
About HP DCE/9000 Enhanced DFS
Features
DCE/DFS TCL Configuration Functions
Enhanced DFS 3.0 offers a number of configuration, unconfiguration,
cleanup, and miscellaneous TCL functions for DCE and DFS. For more
information, see Appendix A.
Global Variables
Enhanced DFS 3.0 offers a number of global variables including directory
variables, execution variables, and security server variables. For more
information, see “Setting Global Variables” in Chapter 2.
System Tuning Variables
Enhanced DFS 3.0 includes variables that allow system administrators to
specify startup parameters for DFS daemons. For more information, see
“Using Tuning Variables” in Chapter 2.
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About HP DCE/9000 Enhanced DFS
Administration Tools for Enhanced DFS 3.0
Administration Tools for Enhanced DFS 3.0
Enhanced DFS 3.0 provides several tools, in addition to the standard tools
and commands provided with OSF DFS 1.2.2, to help you monitor and
administer your DFS 3.0 file servers. These tools are provided in the
EFS-ResourceKit installation product.
• Sentinel — a graphical file server monitoring tool that displays free disk space on
DFS file servers and a summary of DFS files server statistics. It also detects
server problems (when a free space threshold is exceeded or when a server cannot
be reached). It is provided in the EFS-CNTRB-SNTL fileset and installed as
/opt/dce/bin/sentinel. Sentinel requires X-Windows display capability. Sentinel
has online help accessible from its graphical interface.
• EfsStatus — a dcecp script that displays status information about the DCE and
DFS servers in your cell. It is provided in the EFS-CNTRB-SNTL fileset and
installed as /opt/dce/efsadmin/bin/efsstatus.dcp.
• Tkm_adjust — a utility that allows you to examine and modify various token
manager parameters. Use this command with extreme caution, as it is capable of
corrupting the state of the Enhanced DFS client. Tkm_adjust does not have an
associated man page. It is provided in the EFS-CNTRB-TKMAJ fileset and
installed as /opt/dce/bin/tkm_adjust.
You can run Sentinel and EfsStatus from the Enterprise File System (EFS)
Admin web. The EFS Admin web is a group of HTML files and CGI scripts
shipped with the Enhanced DFS product (see "HP Enterprise File System
Admin web" in this chapter). You can run the EfsStatus tool directly from a
command line by entering /opt/dce/efsadmin/bin/efsstatus.dcp.
NOTE: You can either run the efsstatus.dcp or sentinel command from the directory
where that tool is installed, or explicitly specify the full pathname to where that tool
is installed.
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About HP DCE/9000 Enhanced DFS
HP Enterprise File System Admin Web
HP Enterprise File System Admin Web
The Enterprise File System (EFS) Admin web is a group of HTML files and
CGI scripts shipped with the Enhanced DFS product. You can use these files
to create your own EFS web server site, or integrate them into an existing
web server. The files are contained in the installation fileset EFS-WEB and
get installed in the directory /opt/dce/usr/contrib/efsadmin.
Once you have the EFS Admin web up, it allows you to:
• run Sentinel, a graphical file server monitoring tool
• run EfsStatus, a dcecp script that prints status information about DCE and
Enhanced DFS servers in your cell
• view DCE and Enhanced DFS log information for a specified node
• access the HP Corporate and HP EFS home pages
• view Information on product updates and new additions to the Resource Kit via
the HP EFS home page
• send mail about Enhanced DFS to HP
Note that you can access a copy of the HP DCE/9000 Enhanced DFS
Version 3.0 Release Note (in HTML format) from the
HP EFS home page.
The HTML Release Note is the same as the printed Release Note, except it
may contain post-product-release updates to the printed version. See the
“What Manuals are Available for This Version” section in this manual for
complete information about the documentation provided with HP DCE/9000
Enhanced DFS 3.0.
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About HP DCE/9000 Enhanced DFS
Compatibility Information and Installation Requirements
Compatibility Information and Installation
Requirements
This chapter describes the hardware, software, operating system, memory,
and swap space requirements for HP DCE/9000 Enhanced DFS Version 3.0
on HP-UX 11.0.
Enhanced DFS 3.0 Interoperability
Enhanced DFS 3.0 clients and servers are completely interoperable with HP
DCE/9000 Version 1.4x, 1.5.x, EFS 1.0, DFS 2.0, and 1.7 DFS clients and
servers. Enhanced DFS 3.0 servers can "serve" HP DCE/9000 Version 1.4x
and 1.7 DFS clients; conversely, HP DCE/9000 Version 1.4x and 1.7 DFS
servers can serve Enhanced DFS 3.0 clients.
NIS and Integrated Login Interoperability
NIS, Integrated Login, and DCE/DFS should interoperate without any
problems because they do not have any knowledge of one another.
Both Integrated Login and NIS attempt to solve the problem of creating a
common /etc/passwd and /etc/group file on multiple nodes. Integrated
Login does this by using /opt/dce/bin/passwd_export to pull the contents of
the DCE registry (basically the global /etc/passwd and /etc/group files)
onto each node. NIS, on the other hand, gets the global /etc/passwd and
/etc/group files through a hook in the getpwent() system call. DCE/DFS
uses this functionality primarily to print a username and group when you
perform an ls -l within DFS.
The second function of Integrated Login, which NIS does not provide, is to
obtain a user’s DCE credentials when a user performs a standard UNIX login
through telnet, ftp, CDE, and so on. If Integrated Login obtains the
credentials successfully, the user accesses DFS in an authenticated manner,
and without having to perform a dce_login. When DCE is not available,
Integrated Login falls back to using the /etc/passwd file; upon successful
login, the user does not have DCE credentials, gains unauthenticated access
to DFS, and thus can only access entries with an any_other ACL entry.
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About HP DCE/9000 Enhanced DFS
What Manuals are Available for This Version
What Manuals are Available for This Version
Documentation for HP DCE/9000 Enhanced DFS Version 3.0 consists of
online documentation. The online documentation is available in various
formats: ASCII text, HTML files, and Portable Document Format (readable
with the freely available Adobe Systems Acrobat Reader software).
The Enhanced DFS 3.0 online documentation consists of the following:
• HP DCE/9000 Enhanced DFS Version 3.0 Release Note — available online via
the World Wide Web at HP’s EFS home page web site. See the “HP Enterprise
File System Admin Web” section in Chapter 1 for details about accessing this
file.
This document is available at the following pathnames:
/opt/dce/efs_docs/html/EnhDFSRelNote/index.html
/opt/dce/efs_docs/pdf/EnhDFSRelNote.pdf
/opt/dce/efs_docs/text/EnhDFSRelNote.text
• Planning and Configuring HP DCE/9000 Enhanced DFS Version 3.0 —
available at the following pathnames:
/opt/dce/efs_docs/html/PlanConfigEFS/index.html
/opt/dce/efs_docs/pdf/PlanConfigEFS.pdf
/opt/dce/efs_docs/text/PlanConfigEFS.text
• OSF DCE DFS Administration Guide, Revision 1.2.2 — available at the
following pathnames:
/opt/dce/efs_docs/html/Admin_Guide/index.html
/opt/dce/efs_docs/text/OSFDFS1.2.2Admin.txt
This manual is a detailed, comprehensive description of OSF DCE DFS Version
1.2.2, the software upon which Enhanced DFS 3.0 is based.
• OSF DCE DFS Reference Guide, Revision 1.2.2 — available at the following
pathnames:
/opt/dce/efs_docs/html/Reference_Manual/index.html
/opt/dce/efs_docs/text/OSFDFS1.2.2Ref.txt
This document describes the configuration files and administrative commands of
OSF DCE DFS Version 1.2.2, the software upon which Enhanced DFS 3.0 is
based.
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About HP DCE/9000 Enhanced DFS
What Manuals are Available for This Version
/