HP OpenVMS Systems
HP Advanced Server V7.3B for OpenVMS
Server configuration information in the OpenVMS Registry can be inadvertently changed or deleted. It is also possible for registry information to be unavailable to the Advanced Server. If the required parameters listed above are not available or do not match the information in the SAM database, you must restore the parameters to the OpenVMS Registry. To accomplish this:
For example, to restore the DomainName parameter in the OpenVMS Registry, use the PWRK$REGUTL utility as shown the following example. Be sure to enter the domain name exactly as it was initially specified the last time the configuration procedure (PWRK$CONFIG.COM) was run.
$ REGUTL :== $SYS$SYSTEM:PWRK$REGUTL.EXE $ REGUTL REGUTL> SET VALUE * DomainName domain-name /CREATE/FORCE
Set the values of the required parameters (DomainName, ComputerName_nodename, and AliasName (for OpenVMS Clusters), entering the names exactly as they were specified when the Advanced Server was last configured. The values at startup of all Advanced Server parameters in the OpenVMS Registry are listed in the following file, where nodename is the name of your server node:
Once you have set the values of the required parameters, run the
PWRK$CONFIG.COM configuration procedure to restore the remaining server
configuration parameters. If the configuration procedure fails to
complete successfully after this procedure, call your HP
support specialist for assistance.
3.6 Enabling a Windows XP Client to Join and Log On to a Domain
If a Windows XP client is unable to join the server's domain, or a Windows XP user cannot log on to the domain, do the following on the Windows XP client. (If the Windows XP client is unable to rejoin a domain, see Section 184.108.40.206, Windows 2000 and Windows XP Clients Unable to Rejoin Domain.
Before invoking the Configuration Manager with the ADMINISTER/CONFIGURATION command, make sure the OpenVMS Registry Server is running. If the Registry is not running, you will not be allowed to start the Configuration Manager. A message will notify you of this.
HP recommends that you have the Registry Server started automatically with system startup. If you need to start the Registry Server manually, enter the following command at the DCL prompt, as shown:
When you start up the Advanced Server using the PWRK$STARTUP.COM procedure, or the associated PWSTART command defined in the command definition file SYS$STARTUP:PWRK$DEFINE_COMMANDS.COM, the server is not automatically shut down. PWRK$STARTUP.COM issues the following message and exits with a status of 1 if the file server is already running:
PWRK-I-RUNNING, Advanced Server is already running on this node
If you would like the PWRK$STARTUP procedure (or PWSTART command) to stop the server automatically, use the PWRESTART command (contained in the PWRK$DEFINE_COMMANDS.COM file). PWRESTART invokes PWRK$STARTUP with RESTART as the P1 parameter, which shuts down the server before restarting.
To shut down and restart a file server, use one of the following:
If the server is already running, a message will indicate so. If it is
not running, it will start.
3.9 Shutting Down the OpenVMS System with the Advanced Server
Before shutting down the OpenVMS system, HP recommends that you first
stop the Advanced Server.
3.10 External Authentication
External authentication can provide automatic password synchronization
between an OpenVMS account and a corresponding Advanced Server domain
account. Users who have both OpenVMS and Advanced Server domain user
accounts can avoid maintaining two different passwords. If the domain
account password is changed, the OpenVMS LOGINOUT program sets the
OpenVMS account password to the domain account password the next time
the user logs in to the OpenVMS account. If the user changes the
OpenVMS password with the DCL SET PASSWORD command, the SET PASSWORD
command sends the password change to the Advanced Server external
authenticator. For synchronization to succeed, an Advanced Server domain
controller must be available and the domain account password must meet
OpenVMS syntax requirements.
3.10.1 Enabling External Authentication
When you start the Advanced Server, server external authentication is automatically enabled for user accounts tagged for external authentication in the SYSUAF (to enable external authentication, PWRK$ACME_STARTUP.COM defines bit 0 of the SYS$SINGLE_SIGNON logical in SYSTARTUP_VMS.COM to the value 1. You can disable external authentication by changing the default value of this bit. For information on disabling external authentication and on defining the other bits in the SYS$SINGLE_SIGNON logical, see Section 3.10.2, Disabling External Authentication.)
These are the steps to take to make sure external authentication works properly:
$ DEFINE/SYSTEM/EXE SYS$SINGLE_SIGNON 1 $ @SYS$STARTUP:PWRK$ACME_STARTUP.COM
$ DEFINE/SYSTEM/EXE PWRK$ACME_SERVER scsnode1_name[,scsnode2_name,...]
For more information about enabling external authentication on OpenVMS systems, refer to the OpenVMS Guide to System Security.
For information about enabling Authentication and Credential Management
(SYS$ACM) for authenticating users and determining the user security
profile for OpenVMS and Windows NT, refer to the COM, Registry, and Events for OpenVMS Developer's Guide
(included in the OpenVMS Documentation CD-ROM).
3.10.2 Disabling External Authentication
If you want to disable external authentication, then before starting the Advanced Server, define the SYS$SINGLE_SIGNON logical in SYSTARTUP_VMS.COM to a value of 0, as in the following example:
$ DEFINE/SYSTEM/EXECUTIVE SYS$SINGLE_SIGNON 0
For more information, refer to the OpenVMS Guide to System Security.
3.11 Disabling Opportunistic Locking
Opportunistic locking is enabled by default. Under a few circumstances, customers might want to disable opportunistic locking, such as when they require immediate access to files at the OpenVMS system level. Typically, these customers would also disable open file caching. To disable this feature so that files are not locked, add the following two lines to the PWRK$COMMON:PWRK.INI file:
[PLM] ENABLE_OPLOCKING = 0
Advanced Server for OpenVMS provides transparent support for the following TCP/IP network transport products:
To use Advanced Server for OpenVMS with TCP/IP, see the basic instructions in the
HP Advanced Server for OpenVMS Server Installation and Configuration Guide. See also the note about selecting a network adapter for
the Advanced Server when the TCP/IP host is using multiple network
adapters, in Section 2.5, New Features Provided by Advanced Server V7.3A for OpenVMS.
3.13 EIA0: (DE600, DE602) Is Known Device for all Transports
Beginning with Version 7.3A of the Advanced Server for OpenVMS, the network interface
device EIA0: (for Ethernet DE600 and DE602, for example) is included in
the server's list of known devices for all transport layers (TCP/IP,
DECnet and NetBEUI).
3.14 NBSHOW: Purging, Reloading, and Displaying the NetBIOS Name Cache (KNB)
With the current version of the Advanced Server for OpenVMS, you can use the NBSHOW command to purge the NetBIOS name cache and reload it with LMHOSTS entries (entries that have the #PRE tag). The entries are purged and reloaded immediately without having to restart the Advanced Server for OpenVMS; prior to Version 7.3-ECO1 of the Advanced Server for OpenVMS, if you added #PRE entries to your LMHOSTS file while the server was already running, you had to restart the Advanced Server for OpenVMS to have the entries loaded into the cache.
You can also use the NBSHOW command to display the NetBIOS name cache contents. These capabilities are similar to those provided by the NBTSTAT utility on Windows NT and other Microsoft clients. The NetBIOS name cache is used by TCP/IP (associated with the PWRK$KNBDAEMON process).
NBSHOW is a special Advanced Server management command that is defined in
the command file SYS$MANAGER:PWRK$DEFINE_COMMANDS.COM.
3.14.1 Displaying Contents of the NetBIOS Name Cache
To display the current contents of the NetBIOS (KNB) name cache, enter the NBSHOW KNBCACHE command at the DCL prompt, as in the following example:
$ NBSHOW KNBCACHE KNB NetBIOS Name Cache table [3 entries] Name Type Host Address Life [secs] ------------------------------------------------------------ NINEMM x20 UNIQUE 10.100.1.254 300 LANGROUP x1b UNIQUE 220.127.116.11 -1 SERVER1 x20 UNIQUE 18.104.22.168 -1
The command displays both the dynamic and static (preload) cache
entries. Names with a lifetime indicated as "-1" are from the
preload/static name cache, while names with a lifetime of 300 (seconds)
are from the dynamic name cache. (The Advanced Server name cache
timeout is five minutes.) If the server is not configured to use
LMHOSTS, no preloaded names will be listed. If the server is not
configured to use TCP/IP, the NBSHOW KNBCACHE command will display a
message indicating so.
3.14.2 Purging the NetBIOS Name Cache and Reloading It
To dynamically purge the NetBIOS name cache and reload it from the LMHOSTS file, use the NBSHOW KNBCACHE command as in the following example:
$ NBSHOW KNBCACHE RELOAD Preloaded NetBIOS name SERVER1 at 22.214.171.124 Preloaded NetBIOS name LANGROUP at 126.96.36.199
Upon purging the cache, the command lists the preloaded entries drawn
from the LMHOSTS file (entries with the #PRE tag). HP recommends that
you use the NBSHOW KNBCACHE command to verify that the LMHOSTS names
marked with the #PRE tag were indeed loaded into the cache.
3.15 Certain Clients Can Log On Using Only One Transport
On clients that use the LANMAN.INI file, the file might contain the WRKNETS keyword in the WORKSTATION section. This keyword specifies the network transports that the client can use and the order in which they are used. On Enhanced Redirector clients, these network transports are represented by local area network adapter (LANA) numbers.
The NET LOGON command works over LANA0 only, regardless of how many transports are loaded on the client. This might affect the client's ability to log on to a domain. For example, if a client runs both NetBEUI and DECnet, and WRKNETS associates NetBEUI with LANA0, NET LOGON fails if NetBEUI is not running on the server. If the domain logon fails, the client can still connect to servers but must provide a password for each session established.
To avoid this problem, do one of the following:
As noted in the HP Advanced Server for OpenVMS Server Installation and Configuration Guide, the Advanced Server provides optional client-based server administration tools that allow you to manage the server from Windows 98, Windows 95, Windows for Workgroups, or Windows NT clients. These tools are available in the PWUTIL share after installing, configuring and starting the server.
The SRVTOOLS directory in the PWUTIL share contains a subdirectory for each type of client computer. Refer to the README.TXT file in the appropriate subdirectory for instructions on installing the software on the client computer.
The subdirectories for the Windows NT platforms do not include a README.TXT file. In addition, attempts to install the server administration tools for a Windows NT platform, using the SETUP.BAT installation file provided in the corresponding Windows NT subdirectory, will fail (the SETUP.BAT file in either \\SERVER\PWUTIL\SRVTOOLS\WINNT or \\SERVER\PWUTIL\SRVTOOLS\WNT40). Error messages will indicate that certain .DLL files could not be found. Therefore, they are not copied to the target directory. These .DLL files were omitted from the Windows NT subdirectories because they are not needed by Windows NT. The workaround for this problem is to remove from the SETUP.BAT file the line that copies the .DLL files and the error-check line that follows it. Or, instead of using the SETUP.BAT file to install the tools, manually copy all the tools files from the subdirectory to the Windows NT target directory.
Refer to the Windows NT Server documentation or use online Help for more information about how to use Windows NT server administration tools.
Windows 2000 file and print server-related tools are available as part of the Windows 2000 Server.
The following section describes how to set up dynamic cluster load balancing when HP's TCP/IP Services for OpenVMS, V5.0A or later, is in use. For setting up this feature when the Multinet for OpenVMS or TCPWare for OpenVMS products are in use, refer to the appropriate product documentation.
To set up dynamic cluster load balancing in WANs, observe the following:
The HP Advanced Server for OpenVMS Server Administrator's Guide lists the basic steps to follow for enabling dynamic cluster load balancing in WANs. Note that the HP Advanced Server for OpenVMS Server Administrator's Guide erroneously states that the cluster alias name should be registered at the authoritative DNS (BIND) name server for the cluster. You should make sure it is not registered at the DNS server. The cluster name is associated with the IP addresses of all cluster members that are running the Advanced Server. If the addresses of the cluster members are added to the DNS database, round-robin load balancing will be in effect instead of dynamic load balancing.
The HP Advanced Server for OpenVMS Server Administrator's Guide also recommends that you remove all entries for the
cluster alias from the LMHOSTS file of all clients and servers. It
fails to mention that you should also remove all entries for the
cluster alias from the local hosts file.
3.18 The Advanced Server in an OpenVMS Cluster
The documentation now includes enhanced and expanded information on installing and managing the Advanced Server in an OpenVMS Cluster, and on licensing considerations in cluster environments. The following list summarizes some of the most important considerations for servers in an OpenVMS Cluster. Refer to the appropriate documentation for more information.