*******************************************************************************
* *
* Amendment/Additional Information *
* *
*******************************************************************************
03/30/98 - PQ15585
------------------
For Netdist on OS/2:
This is additional information on the documentation for the following Netdist
panels:
1). At the Node Definition panel.
When this panel is opened thru the "Create" button on the previous panel
(Node List), after you enter the node name at the Node name field, use the
TAB key to enable the Platform list box selection.
2). At the Protocol Defaults panel.
In order to enable the changes, the following first 3 boxes, or all 5 boxes
should be checked:
- Create response file
- Enable changes
- Overwrite existing values
- Update ETC hosts file
- Update ETC services file
3). At the DAE Defaults panel.
In order to enable the changes, all 3 following boxes should be checked:
- Create response file
- Enable changes
- Overwrite existing values
01/06/98 - PN92710
------------------
Updated to contain Year 2000 Network Distributor fixes.
04/04/97
--------
For Netdist on AIX:
1) When specifying platform for a new node definition (inside of "Node
Definition" panel), you may have to click the "DAE" box twice.
2) When specifying "Protocol Defaults" from "Node Definition" panel,
the usual & common setup is to check all 5 check-boxes.
----------------------------------------------------------------------------
****************************************************************************
*** NOTE: If you have already installed Network Distributor, see MIGRATE.DOC
for details on installing this package without loss of data.
****************************************************************************
NETWORK DISTRIBUTOR
Network Distributor lets you quickly and automatically install
and/or configure the following DAE programs on OS/2 and AIX nodes
in a network:
. DAE Communications System/2
. DAE Entry Communications System/2
. DAE AIX Communications System/6000
. DAE AIX Entry Communications System/6000
. DAE Host Link/2
. DAE AIX Host Link/6000
These programs are all "enabled" for Network Distributor. A
non-DAE program can also be enabled. If so, you can use Network
Distributor to distribute the enabled non-DAE program at the same
time you distribute the enabled DAE programs.
This document describes how to use Network Distributor to
distribute DAE programs only. For information about how to use
Network Distributor to distribute a non-DAE program, refer to the
program documentation.
OVERVIEW
Network Distributor provides the following tools that you can use
to install and/or configure the enabled DAE licensed programs on
a network:
. Installation services
. Configuration services
. Combination of services
. Commands
INSTALLATION SERVICES
You can use the Network Distributor installation services to
quickly and automatically install the following DAE licensed
program on OS/2 nodes in a network:
. DAE Communications System/2
. DAE Entry Communications System/2
. DAE Host Link/2
For example, if Nodes 1-10 are OS/2 nodes, you can quickly and
automatically install DAE Communications System/2 on Nodes 1-10.
CONFIGURATION SERVICES
You can use the Network Distributor configuration services to
quickly and automatically configure DAE components in your
network, provided that the components are supported by Network
Distributor and each node where you configure the components
contains an enabled DAE licensed program supporting the
components.
The following table shows the DAE components supported by Network
Distributor and the enabled DAE licensed programs providing
support for each component.
DAE COMPONENT ENABLED DAE LICENSED PROGRAM
SUPPORTING THE COMPOENT
APPC DAE Communications System/2
DAE Entry Communications System/2
DAE AIX Communications System/6000
DAE AIX Entry Communications System/6000
DECNET DAE Communications System/2
DAE Entry Communications System/2
MAP DAE Communications System/2
DAE Entry Communications System/2
NETBIOS DAE Communications System/2
DAE Entry Communications System/2
TCP/IP DAE Communications System/2
DAE Entry Communications System/2
DAE AIX Communications System/6000
DAE AIX Entry Communications System/6000
Host file DAE Host Link/2
DAE AIX Host Link/6000
Host transaction DAE Host Link/2
DAE AIX Host Link/6000
Host batch DAE Host Link/2
DAE AIX Host Link/6000
Co-processor DAE Communications System/2
DAE AIX Communications System/6000
For example, the DAE NETBIOS component is supported by Network
Distributor and also supported by the DAE Communications System/2
and DAE Entry Communications System/2 licensed programs.
Therefore, you can use Network Distributor to configure the DAE
NETBIOS component on any node containing DAE Communications
System/2 or DAE Entry Communications System/2.
If you have an existing network configuration, Network
Distributor does not destroy this configuration. Instead,
Network Distributor automatically gathers and adds to your
existing configuration.
2
COMBINATION OF SERVICES
You can use a group of Network Distributor services at the same
time. For example, in one operation, you can:
. Install DAE Communications System/2 Nodes 1-3
. Install DAE Entry Communications System/2 on Nodes 4-10
. Install DAE Host/Link/2 on Node 1
. Configure the DAE APPC component on Nodes 1-10
. Configure the DAE host file component on Node 1
COMMANDS
You can use Network Distributor commands to manage the network in
any of the following ways:
. Changing the Network Distributor profile file
. Editing a remote file
. Transferring programs
. Executing remote programs and commands
. Gathering configuration data
. Testing connectivity
. Backing up the master node
For example, you can use the Network Distributor CIFDMEDT command
to edit a file on a remote node.
REQUIREMENTS
Network Distributor requires the following hardware and software
on each node where you plan to use Network Distributor services
and commands:
. The hardware and software required by the DAE licensed
program you plan to install and configure on the node.
. An additional 5MB of disk space on the master node
(described in the next section) for storing Network
Distributor and the topology.dat file.
An additional 4MB of disk space on other Network
Distributor storing the Network Distributor.
. Software providing support for either the NETBIOS or
TCP/IP protocol.
The following OS/2-based programs provide support for
NETBIOS:
IBM OS/2 Extended Edition Version 1.3.1
IBM Extended Services for OS/2
IBM LAN Server Version 2.0
IBM LAN Enabler Version 2.0
3
IBM OS/2 NETBIOS Database Client Application Enabler
The following OS/2-based program provides support for
TCP/IP:
IBM TCP/IP Version 1.2 for OS/2, or higher if
compatible with Version 1.2
AIX provides support for TCP/IP.
. If you are using a combination of NETBIOS and TCP/IP
protocols, at least one node must contain support for
both NETBIOS and TCP/IP.
GETTING READY TO USE NETWORK DISTRIBUTOR
Before you install Network Distributor, do the following:
1. Install the required hardware and software (described in the
previous section) on each node where you plan to use the
Network Distributor.
2. Determine which Network Distributor nodes to use for each of
the following:
. Master node. You must assign one Network Distributor
node to be the master node. The master node stores a
topology.dat file containing information about how all
the Network Distributor nodes on the network are
configured.
. Client nodes. You must assign all the remaining Network
Distributor nodes to be client nodes.
. (If required) Adjacent node. You must assign one client
node containing both the TCP/IP and NETBIOS protocol to
serve as an adjacent node if both of the following apply:
- The master node contains support for only one
protocol.
- A client node does not contain support for the
protocol used on the master node.
For example, if the master node contains support for only
TCP/IP, and any of the client nodes contain support for
only NETBIOS, you must assign one client node with
support for both TCP/IP and NETBIOS to serve as the
adjacent node.
EXAMPLE 1:
The following example network contains a master node and client
nodes, with one of the client nodes also assigned to be an
4
adjacent node. The adjacent node is required so that client
nodes containing only the NETBIOS protocol can access the master
node, which contains only the TCP/IP protocol.
ι¨ ι¨
ό ό ό ό
ό CLIENT ό ό CLIENT ό
ό ό ό ό
·Άλ ·Άλ
ό NETBIOS ό
·Άλ
ό
顨
όADJACENT/ ό
ό CLIENT ό
ό ό
·Άλ
ό
顨
ό TCP/IP ό
顨 顨
ό ό ό ό
ό MASTER ό ό CLIENT ό
ό ό ό ό
·λ ·λ
EXAMPLE 2:
The following example network contains a master node and client
nodes. An adjacent node is not required because the master node,
which uses both the NETBIOS and TCP/IP protocols, can be accessed
by all the nodes in the network.
ι¨ ι¨
ό ό ό ό
ό CLIENT ό ό CLIENT ό
ό ό ό ό
·Άλ ·Άλ
ό NETBIOS ό
·Άλ
ό
顨
ό ό
ό MASTER ό
ό ό
·Άλ
ό
顨
ό TCP/IP ό
顨 顨
ό ό ό ό
ό CLIENT ό ό CLIENT ό
ό ό ό ό
·λ ·λ
5
EXAMPLE 3:
The following example network contains a master node and client
nodes. An adjacent node is not required because the network uses
the NETBIOS protocol only.
ι¨ ι¨
ό ό ό ό
ό CLIENT ό ό CLIENT ό
ό ό ό ό
·Άλ ·Άλ
ό NETBIOS ό
·Άλ
ό
顨
ό ό
ό MASTER ό
ό ό
·λ
INSTALLING NETWORK DISTRIBUTOR
Install Network Distributor on nodes in the following sequence:
1. Install Network Distributor on the master node
2. Install Network Distributor on the adjacent node (if
required)
3. Install Network Distributor on each client node
To install Network Distributor on a node, do the following:
1. Place the diskette labelled Network Distributor Installation
Diskette 1 in a diskette drive.
2. Activate an OS/2 window or OS/2 full screen and enter:
(drive):install
where (drive) is the diskette drive containing the Network
Distributor diskette.
3. Introductory text appears describing the installation
program.
After reading the text, press Enter.
4. The following question appears:
Enter the drive and path where you want to install
Network Distributor ((drive:path)):
Enter the drive and path where you want to install Network
Distributor (for example, D:\NETDIST), or press Enter to
accept the default.
6
5. The following question appears:
Enter the name of the local node ({nodename}):
Enter the name of the local node on which you are installing
Network Distributor, or press Enter to accept the default
node name that the Network Distributor determined from the
current configuration of the node.
6. The following question appears:
Enter the name of the master node ({nodename}):
Enter the name of the node you assigned to be the Network
Distributor master node, or press Enter to accept the
default.
7. The following question appears:
Enter the name of the adjacent node, if used
({nodename}):
If you are using an adjacent node, enter the name of this
node. If you are not using an adjacent node, press Enter.
8. The following question appears:
Enter the protocols supported on the local node (XXXX):
Enter one or more of the following abbreviations, with no
delimiter characters, to specify the protocols supported on
the node where you are installing Network Distributor:
N0 NETBIOS on adapter 0
N1 NETBIOS on adapter 1
TC TCP/IP
I0 No protocol (stand-alone node)
9. The following question appears:
Do you want this program to make the required updates to
your system files (Y):
Enter Y if you want the Network DIstributor program to make
the required updates. Answer N if you want to make the
updates manually after completing the installation.
If you answer N, you will need to make the following updates:
. Add the line CALL STARTCIF to the STARTUP.CMD file.
. Add {drive:path} to the PATH statement in the
CONFIG.SYS file.
. Add {drive:path} to the DPATH statement in the
CONFIG.SYS file.
7
. Add the line SET CIFDM {drive:path} to the
CONFIG.SYS file.
10. The installation program then displays the information you
have provided and asks the following question:
Is the information correct (Y):
If the information is correct, press Y to start the
installation. If the information is incorrect, enter N
to enter the information again.
If installing Network Distributor on the master node, you are
prompted to insert the second Network Distributor diskette. If
installing Network Distributor on any other node, all the files
are installed from one diskette.
USING THE INSTALLATION SERVICES:
A SAMPLE SESSION
This sample session describes how to use the Network Distributor
installation services to help with installing a DAE licensed
program on a network.
In this session, assume that:
. You want to install DAE Communications System/2 on Nodes
1-5, which are all OS/2 nodes.
. You already have installed Network Distributor on Nodes
1-5.
. When you installed Network Distributor, you assigned Node
1 to be the master node.
1. Choose one Network Distributor node (master, adjacent, or
client) to use as a server node for the program. The server
node must contain enough disk space to store two copies of
the program files, one in packed format and the other in
normal format.
In this session, assume that you choose Node 5 as the server
node. Node 5 contains enough disk space to store the DAE
Communications System/2 files in packed and normal formats.
2. On the server node, install the DAE licensed program that you
want to distribute over the network. When you install the
program, choose the option that sets up the node as a server
node. This installs the program files on the node in packed
format.
In this session, install DAE Communications System/2 on Node
5, and select the option to set up Node 5 as a server node.
8
3. Go to any node in the network. Start the Network Distributor
utility by doing the following:
a. Activate an OS/2 window or full screen prompt.
b. At the OS/2 prompt, enter:
NETDIST
4. At the Network Distributor main menu, select:
Configure node definitions
5. At the Node List window, repeat the following steps for each
target node where you want to install the DAE licensed
program. In this session, you want to install DAE
Communications System/2 on Nodes 1-5, so repeat the following
steps for Nodes 1-5.
a. Scroll through the list of node definitions. When you
install Network Distributor, it creates a node definition
for each Network Distributor node.
From the list of node definitions, select the first
target node where you want to install the DAE licensed
program. In this session, select Node 1 first. Then,
select the CHANGE pushbutton.
b. At the Node Definition window, from the Available
Services list, select the appropriate installation
service. In this session, select:
Install DAE CS/2
c. At the popup menus, specify the following information,
which specifies how you want to install the program on
the target node.
- The target drive where you want to install the
program on the target node.
- The installation options that you want to install on
the target node.
d. Select the OK pushbutton to save the node definition.
6. Press OK to return to the Network Distributor menu and save
the changes you have made to the node definitions in the
topology.dat file.
9
7. When you are ready to apply the installation service to all
target nodes on the network, do the following:
a. Select the following option at the Network Distributor
menu:
Apply services to the network
b. At the popup menu, specify when you want to apply the
service and select the OK pushbutton.
Network Distributor applies to the network the services you
selected in the node definitions. In this example, Network
Distributor applies the installation of the DAE
Communications System/2 files to Nodes 1-5.
8. Exit the Network Distributor utility by selecting the CANCEL
pushbutton.
USING THE CONFIGURATION SERVICES:
A SAMPLE SESSION
This sample session shows how to use the Network Distributor
configuration services to configure a DAE component on the
network.
In this session, assume the following:
. You want to configure the NETBIOS component on Nodes 1-6.
. Nodes 1-5 contain DAE Communications System/2 and also
contain Network Distributor.
. Node 6 contains DAE Communications System/DOS, but,
because DAE Communications System/DOS is not an enabled
DAE program, Node 6 does not contain Network Distributor.
Therefore, you cannot use Network Distributor to
configure Node 6. You must configure Node 6 manually.
. Node 1 is the master node.
1. Be sure that each node that you plan to configure with
Network Distributor contains a DAE licensed program providing
support for the components you plan to configure on the node.
In this session, you plan to use Network Distributor to
configure the NETBIOS component on Nodes 1-5. Nodes 1-5
contain DAE Communications System/2, which supports the
NETBIOS component.
You also plan to configure the NETBIOS component on Node 6.
Node 6 contains Communications System/DOS, which supports the
NETBIOS component. However, because Communications
10
System/DOS is not an enabled program, you will need to
configure Node 6 manually.
2. Go to any Network Distributor node. Start the Network
Distributor utility by doing the following:
a. Activate an OS/2 window or full screen prompt.
b. At the OS/2 prompt, enter:
NETDIST
3. At the Network Distributor main menu, select:
Configure node definitions
4. Create or change a node definition for each node where you
want to configure the component. In this session, you want
to configure NETBIOS on Nodes 1-6, so you need to create or
change node definitions for Nodes 1-6.
Do the following:
a. Scroll through the list of node definitions. A node
definition already exists for each node containing
Network Distributor. Therefore, a node definition
already exists for Nodes 1-5.
b. From the list of node definitions, select the first node
definition that you need to change. In this case, select
Node 1.
c. A Node Definition window appears. Do the following:
1. Make any required changes to the information in the
node definition. The online help provides
information about each field in the definition.
2. Select the following service from the Available
Services list:
NETBIOS
3. Select the OK pushbutton to save the node definition
and return to the Node List window.
d. Repeat steps 4a-4c for each additional node definition
that you need to change. In this session, repeat steps
4a-4c for Nodes 2-5.
e. Even though Node 6 is not supported by Network
Distributor, you must create a node definition for it.
At the Node List window, select the CREATE pushbutton to
enter NODE6 as the name of the node.
11
f. A Node Definition window appears. Do the following:
1. Enter information about Node 6 in the node
definition fields. The online help provides
information about each field in the definition.
2. Select the following service from the Available
Services list:
NETBIOS
3. Select the OK pushbutton to save the node definition
and return to the Node List window.
5. At the Node List window, select the OK pushbutton to return
to the Network Distributor menu and to save the changes you
have made to the node definitions in the topology.dat file.
6. If you are configuring a network component (APPC, TCP/IP,
NETBIOS, DECNET, or MAP), you must be sure a connection
definition exists between each pair of nodes that you want to
communicate with each other.
In this session, you are configuring the NETBIOS component on
Nodes 1-6, so you must be sure the following connection
definitions exist:
Node 1 - Node 2
Node 1 - Node 3
Node 1 - Node 4
Node 1 - Node 5
Node 1 - Node 6
Node 2 - Node 3
Node 2 - Node 4
Node 2 - Node 5
Node 2 - Node 6
Node 3 - Node 4
Node 3 - Node 5
Node 3 - Node 6
Node 4 - Node 5
Node 4 - Node 6
Node 5 - Node 6
Do the following:
1. At the Network Distributor window, select:
Configure connection definitions
2. Create any required connection definitions. Refer
to the online help for instructions on how to do
this.
12
7. View the global information that Network Distributor is
using, and make any required changes to these values. Do the
following:
a. At the Network Distributor window, select:
Configure global definitions
b. At the Global Definitions window, select:
Global network definitions
c. In this session, none of the global information pertains
to the NETBIOS component, so press the CANCEL pushbutton
to return to the Global Definitions window.
d. At the Global Definitions window, press the CANCEL
pushbutton to return to the Network Distributor window.
8. Apply the configuration service to all the target Network
Distributor nodes in the network. In this session, apply the
configuration of NETBIOS to Nodes 1-5.
Do the following:
a. Select the following option at the Network Distributor
menu:
Apply services to the network
b. At the popup menu, specify when you want to apply the
service and select the OK pushbutton.
Network Distributor then applies to the network the services
you selected in the node definitions. In this example,
Network Distributor applies the configuration of NETBIOS to
Nodes 1-5.
9. Exit the Network Distributor utility by selecting the CANCEL
pushbutton.
10. Because Node 6 is not a Network Distributor node, you must
configure the NETBIOS component on this node manually. Do
this as described in the Installing and Configuring
Communications System/DOS book.
USING THE NETWORK DISTRIBUTOR COMMANDS
The Network Distributor commands let you do the following:
. Stop Network Distributor
. Restart Network Distributor
. Change the Network Distributor profile
. Edit a remote file
13
. Transfer files
. Execute remote commands
. Gather configuration data
STOPPING NETWORK DISTRIBUTOR
The Network Distributor stop command stops all Network
Distributor processes currently running on the node. This
includes NETBIOS and TCP/IP servers, and the CRON (scheduler).
The syntax is:
CIFDMTRM
RESTARTING NETWORK DISTRIBUTOR
The Network Distributor start command restarts Network
Distributor aftertermination. You might want to stop Network
Distributor and then restart it when you are ready to use the
Network Distributor services and commands.
The syntax is:
STARTCIF
CHANGING THE NETWORK DISTRIBUTOR PROFILE
The Network Distributor profile command edits the Network
Distributor profile file on any Network Distributor node in the
network. This command makes profile management simple, even for
large networks.
The command is designed to be executed from the node designated
as the PROFNAME in the Network Distributor profile. From this
node, you can change the profile files on all the nodes in the
network so that the PROFNAME field contains the name of a
different node. You can use the command to change the values of
any fields in the profile file except NODENAME, which should
never be changed without reinstalling.
The syntax is:
CIFDMPRF {node} {updates}
where:
{node} is one of the following:
Node name of one node
- or -
-A (for all nodes in topology)
- or -
14
-{filename} (containing list of nodes)
{updates} is one of the following:
KEY=VALUE (update one value in
profile)
{filename} (containing multiple
profile lines)
Examples:
To change one node's BOOTCOMM permission:
CIFDMPRF NODE1 BOOTCOMM=N
To change all nodes' BOOTCOMM permission:
CIFDMPRF -A BOOTCOMM=N
To change one node's profile to merge file profile.dat:
CIFDMPRF NODE1 profile.dat
where profile.dat contains the lines that are to be updated.
EDITING A REMOTE FILE
The Network Distributor remote editor command lets you edit a
file on a remote node. This command helps with Cron and profile
updates.
You can use this command to edit a file residing on any remote
Network Distributor node, provided that the Network Distributor
permission flags on both the sending and receiving nodes are
enabled to allow PUTF and GETF operations.
The value of the USEREDIT profile value controls which editor is
invoked. The editor must support invocation by means of a "C"
system call with the file name as the final parameter.
The syntax is:
CIFDMEDT {node} ( CRON | PROFILE | {filename} )
CRON and PROFILE are special values that indicate the Cron table
and the cifdm.prf file. This is done because the access to the
profile through this interface, as well as CIFDMPRF used the
PROFREMT and PROFNAME settings, while specifying the filenames
will utilize the GETFxxxx and PUTFxxxx settings. In the case of
CRON, the appropriate signals are also posted on the remote
system to allow the cron table to be updated within the cron
server on the remote node.
Examples:
15
To edit the cron table on remote node NODE1:
CIFDMEDT NODE1 CRON
To edit c:\config.sys on remote node NODE2:
CIFDMEDT NODE2 c:\config.sys
TRANSFERRING FILES
The two file transfer commands transfer files to or from remote
nodes.
Their syntaxes are:
CIFDMGET {node} {remotefilename} {localfilename} ( TXT | BIN )
CIFDMPUT {node} {localfilename} {remotefilename} ( TXT | BIN )
Examples:
To get the c:\config.sys from NODE1 to our temp.sys:
CIFDMGET NODE1 c:\config.sys temp.sys TXT
To put an executable called C:\temp.exe to NODE1 c:\node1.exe:
CIFDMPUT NODE1 C:\temp.exe C:\node1.exe BIN
EXECUTING A REMOTE COMMAND
The Network Distributor remote execution command
immediately execute a remote command, with the results of the
execution returned to your screen. You can schedule a remote
command for later execution by means of the cron facility.
The syntax is:
CIFDMCMD {node} {command} [{time}]
The time must be in one of the following formats:
"MM/DD hh:mm"
"+time"
"@ mm hh DD MM DayOfWeek "
MM=Month DD=Day of month hh=Hours mm=Minutes
Standard Cron input fields are supported for the @ format, so
each field may be a list (for example, 1,3,4), a range (for
example, [1-4]), an asterisk (*), or a specific value.
16
A command that executes one time only will be deleted from the
cron data file when it has completed. All others remain until you
delete them. (This is an optional parameter and does not return
any output.)
The node name may be any node in the network, and the command
should be enclosed in quotes if it contains any imbedded spaces.
Up to 5000 bytes of output will be printed to your screen from
the command execution.
Examples:
To run a directory of the C:\ directory on NODE1:
CIFDMCMD NODE1 "dir c:\"
To execute the same command at 6:00 PM on November 20th:
CIFDMCMD NODE1 "dir c:\ > c:\dir.out" "11/20 18:00"
This schedules the command to run at the selected time. (The
output can be retrieved by CIFDMGET NODE1 C:\dir.out tmp.out
TXT.)
GATHERING CONFIGURATION DATA
The Network Distributor data gathering command gathers existing
software and hardware configuration from each node in the
network. Network Distributor automatically executes the data
gathering command when you install it, but you can re-execute
this command any number of times to update changed information or
to add data for newly installed products.
A program enabled by Network Distributor might extend the
function of the data gathering command to gather information
about previous versions of the program or to gather information
about related programs.
The syntax is:
CIFDMDG
The command returns status information if it is unable to contact
any of the nodes, or if a resulting error code occurs.
TESTING NETWORK CONNECTIVITY
The Network Distributor network connectivity command lets you
verify if you can communicate with a remote node.
The syntax is:
CIFDMPNG {node}
17
Example:
To find out if NODE1 is up and running:
CIFDMPNG NODE1
The command returns either a return code, or a node found
message.
BACKING UP THE MASTER NODE
All nodes in the network may be re-installed without loss of
data, except the master node. For this reason, it is recommended
that you backup the master node, especially in a large network,
where the loss of the master node could cause a critical failure.
To define a backup master node:
NOTE: Make sure the backup master node meets the space
requirement for a full master node.
1. Use Network DistributorPRF to set BACKNAME to the name of the
new backup node on all nodes.
2. Schedule a cron to backup the master data to the backup node
at whatever interval your site considers appropriate. This
process of synchronizing the nodes creates some network
traffic, but unless changes are being made, the traffic is
minor. An interval of an hour is usually more than
sufficient for most users. Even daily is adequate for
locations where installations are not done frequently.
To schedule the cron, enter the following command:
CIFDMCMD {backupnodename} "CIFDMINT CIFDMBCK.SCR" "@1 * * * *"
This schedules the command "cifdmint cifdmback.scr"
to run at 1 minute after every hour of every day of every month.
To cutover to the backup master node:
1. Be sure the process for defining a backup master node is
complete.
2. Be sure the master node is fully backed up by entering the
following command:
CIFDMCMD {backupmasternode} "CIFDMINT CIFDMBCK.SCR"
3. Go to the backup master node and enter the following command:
CIFDMCUT
18
4. This switches the current master node to the new backup
master. Use the procedure for defining a master node to
complete that process, or use Network DistributorPRF to
change the BACKMAST to any value desired.
REINSTALLING NETWORK DISTRIBUTOR
If your Network Distributor files or configuration becomes
damaged, you can reinstall Network Distributor on client nodes
with no loss of configuration data.
If you reinstall Network Distributor on the master node, you will
lose configuration data unless you reinstall all the Network
Distributor-enabled programs on the network. For this reason
it is recommended that you use the backup command to back up the
configuration information on the master node.
NETWORK DISTRIBUTOR PROFILE
Each Network Distributor install directory contains a local
profile named cifdm.prf. This file contains a set of values that
control the operation of Network Distributor on that node. The
profile contains values that define the local node name, the
master node name, a backup master if one is defined, as well as
some local NETBIOS and security values. Following are the values
stored in the profiles and how they are used.
NODENAME={nodename}
This value defines the local node name for the system. This value
cannot be changed without re-installing Network Distributor. To
change the node name, shut down Network Distributor on the local
node, delete the contents of the Network Distributor directory
and reinstall the product. (Re-installation of the master node
can result in loss of data.)
MASTNAME={mastername}
This value defines the node which is the current Network
Distributor master node. This value should not be changed, except
by the process defined to switch to the
backup master node.
BACKNAME={backupname}
This value is used to define the backup master node name during a
cutover process. It should be set to the same value on all nodes
prior to executing a cutover. See the section on backup master
node for details.
19
PROFNAME={profile management node}
Some of the profile values will disable the ability to remotely
manipulate the sysetm profile. Only the profile management node
is defined to be able to override that security and update the
profile. The default value is the Network Distributor Master
node.
PROTOCOL={protocol list}
This list of character pairs defines the protocols in use on the
system and the corresponding adapters if appropriate. For
example, NETBIOS is protocol N with an adapter choice of 0 or 1.
Changing this value will affect the starting of Network
Distributor servers and may require routing table generation to
be performed to re-establish communications. (See Routing
tables.)
ADJCNAME={adjacent node name}
If the Network Distributor master node does not use the same
protocols as the local node, it may be necesary to specify an
adjacent node to route through to obtain access to the master
node. If this field is changed, routing regeneration is
recommended.
SESSIONS={Server Session Count}
NETBIOS protocol requires that each application program reserve a
certain count of sessions on the netbios adapter at
intialization. This profile value sets the initial number of
server sessions, names and commands that are requested from
NETBIOS during initialization by the servers. If this value is
too high, it will be revised downward until enough resources are
available. This value affects the number of simultaneous clients
which this server may support effectively. If sessions are
exhausted, then existing ones must be broken and re-established
to maintain processing. This is very inefficient, so it is
advised that adequate sessions be made available for the number
of simultaneous installs that will be performed. It may be
necesary to use LAPS to adjust the system netbios parameters to
raise this value. At least 6-8 should remain free for Network
Distributor client programs on the node, plus the number required
by other NETBIOS applications, such as Communications System and
LAN requester.
SESSCLNT={Client Session Count}
Identical value for the client programs to the SESSIONS specified
above. This will also affect the number of parallel sessions that
can be established. Normally, a count of 2 is sufficient, one for
the master and one for the CIF server for application install.
20
GETFREMT={Y/N}
This flag controls whether or not servers on this node should
allow remote file transfer to get files from the local system.
Note that turning off this flag may cause problems performing
Network Distributor enabled installations. It should be left on
during installation processing and turned off if desired
to control file access on the system.
PUTFREMT={Y/N}
This flag controls whether or not remote systems can transfer
files onto this system. Most installation processing is of a
"GET" nature, so this flag will not typically affect Network
Distributor enabled installations.
COMMREMT={Y/N}
This flag controls whether or not other nodes may initiate
commands onto this system. Turning it off will disable remote
installation of products and other Network Distributor functions
that rely on remotely executing commands such as network data
gathering. It should be turned back on prior to running
installations.
BOOTCOMM={Y/N}
This flag controls whether or not the reboot program will respond
to a local or remote request to reboot. This reboot simulates the
entry of a {ctrl}-{alt}-{delete} sequence from the keyboard. HPFS
systems will save file buffers, but open applications may lose
unflushed data files. Turning the flag off will disable execution
of this program.
CRONREMT={Y/N}
Defines whether or not remote systems may manipulate the Cron
data file and signal cron that updates have been made. The
CIFDMEDT program is used to modify the cron data remotely.
PROFREMT={Y/N}
Defines whether or not remote systems may edit the profile data
on this system directly using the CIFDMEDT program. Even if set
to N, the PROFNAME system may still access the profile directly.
USNETCFG={Y/N}
Invoking the Network Distributor utility (NETDIST) on a node
causes a local copy of the topology database plus a number of
panel libraries and other data to be copied onto the local
system. If this flag is set, the Network Distributor utility will
terminate without loading any additional files onto the local
system, and terminate.
21
GETFLOCL={Y/N}
This flag controls whether or not CIFDMGET and other programs
which copy files to the local system will process commands. If it
is set to N, no local programs may get files from remote systems.
This will disable many Network Distributor functions necesary to
install products, so it should be turned back on before
performing installations.
PUTFLOCL={Y/N}
Similar to GETFLOCL, this flag controls the processing to copy
files to other systems. As with GETFLOCL, this flag should be
enabled prior to running a Network Distributor enabled
installation.
COMMLOCL={Y/N}
This flag controls local execution of the command execution API.
It will not allow any programs on the local system to request
remote execution of a command.
USEREDIT={path and file name of editor}
This parameter defines the name of an editor to invoke in
CIFDMEDT. It will copy a remote file to the local system in a
temporary file and invoke the editor specified with temporary
file name as its only parameter. The default is the editor that
is shipped with OS/2.
NOTE: On OS/2 version 1.3, it is necesary to supply the full name
of the executable image, including the .exe for the editor, for
this to function properly.
NETWORK DISTRIBUTOR UTILITY
The Network Distributor utility (NETDIST) is used to manage the
communications and product configurations for Network Distributor
enabled products. This program acts as a network topology editor,
allowing the user to define connections between nodes, as well as
which protocols and services should be loaded onto each node. The
program can be executed on any node in the network, and will
always update the network database with its changes. The program
contains online help for the correct values to place on most
fields.
To execute NETDIST, change current directory to the Network
Distributor installation directory and enter:
NETDIST
22
This will bring up NETDIST and allow you to edit the network
configuration, view the system logs for installations that have
been performed, and manage global product default values. You may
also invoke remote product installation and configuration on one
or more nodes using the "apply changes" functions.
NETBIOS PROTOCOL
The NETBIOS protocol requires that adequate resources be
available on the selected adapter in order to function properly.
Using the Lan Adapter and Protocol Support program (LAPS) which
is supplied with OS/2 communication products, you may configure
these resources. There are three resources that are used in
NETBIOS, sessions, command and names. In the case of Network
Distributor, an equal number of each resource is utilized, as
each session will have a unique name and command to support it.
These resources are shared by all NETBIOS applications on the
system. See your system NETBIOS documentation for details. Note
that separate NETBIOS parameters are specified for each adapter.
Network Distributor will utilize the SESSCLNT and SESSIONS
parameters from the profile to control the number of names,
command and sessions that are requested. If the resources are not
available, then the requested count is revised downward until
allocation is successful. A minimum of 2 names, commands and
sessions must be available for proper operation.
ERROR CODES
Network Distributor is a network oriented product, and is
potentially affected by the protocols on which it is built. The
following error codes may be reported by Network Distributor
programs and processes:
NETBIOS PROTOCOL-SPECIFIC ERROR CODES
Code Reason
---- -------------------------------------------------------
105 Message Timed Out - The partner trapped or is in a loop
110 Session closed - partner has exited
114 Duplicate Name in local table, probably two servers
running
115 Name table full, need to configure more names
116 Local Session table full, need to configure more
sessions.
118 Lack of resources, not enough Names,Sessions or
Commands on remote server
120 Cannot find name, the server is not running, or has
trapped
124 Session ended abnormally, partner hung up or trapped
156 Unable to allocate required resources, too many programs
running
23
The Network Distributor Program's have a set of error codes
defined as well
Code Reason
---- -------------------------------------------------------
01 Malloc failed and returned null
02 Unable to get to destination, no route defined or
routing error
03 Internal logic error - should not occur unless files
damaged
04 Error getting local process info from OS/2
05 Error running DOSMOD function
06 Unable to open CIFDM.PRF file
07 Error in CIFDM.PRF data format
08 Invalid Network Distributor object type for call used
10 File not found error
11 Unable to open route file ROUTE.DAT
12 Unable to open object file OBJECT.cif
13 Unable to save object file
14 Object file is too large > 32K
15 Open file error on client side during CIFDMCopyFile
16 Open file error on server side during CIFDMCopyFile
17 Open mnemonic.dat file error
18 Unable to open topology file in Network Distributor code
19 Could not find basic node data in Toplogy data
20 Incorrect cron input fields
21 Invalid start parameters to server (adapter not included)
22 The client has not initialized Network Distributor
(internal error)
23 Operation not allowed due to profile permission settings
32 Error opening the NETCFG.LOG file
33 File open error, file is busy or damaged
TCP/IP PROTOCOL-SPECIFIC ERROR CODES
Code Reason
---- -------------------------------------------------------
24 Indicates that TCP/IP service CIFDM is not defined
25 Indicates that TCP/IP not up or is incorrectly configured
(bindfail)
26 Indicates error in TCP/IP (accept failed)
27 Indicates no hosts entry in TCP/IP (no hosts file entry
for node)
28 TCP/IP read from socket failed
29 TCP/IP write to socket failed
30 TCP/IP socket open failed
31 TCP/IP connect to partner failed.
24
NETWORK TOPOLOGY DATABASE ERROR CODES
Code Reason
---- -------------------------------------------------------
2001 Malloc failed and returned a null in Topology routines
2002 An invalid record was encountered in topology data (<20
bytes)
2003 An error occurred while saving the Topology data to
disk
2004 The criteria file for a defined object was not present
25
Last modified: January 23, 2004
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