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NOVELL TECHNICAL INFORMATION DOCUMENT
TITLE: SAA 1.3B Rules of Thumb
DOCUMENT ID: TID250033
DOCUMENT REVISION: A
DATE: 05NOV93
ALERT STATUS: Yellow
INFORMATION TYPE: Issue
README FOR: NA
NOVELL PRODUCT and VERSION:
NetWare for SAA 1.3
ABSTRACT:
The SAARUL.TXT file is a Rules of Thumb document for NetWare for
SAA 1.3B. This document should be read before buying any
hardware to use with NetWare for SAA or making any decisions
regarding to connecting to an SNA mainframe of AS/400.
------------------------------------------------------------------
DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO
NOVELL. NOVELL MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY
THIS INFORMATION. HOWEVER, THE INFORMATION PROVIDED IN THIS
DOCUMENT IS FOR YOUR INFORMATION ONLY. NOVELL MAKES NO EXPLICIT
OR IMPLIED CLAIMS TO THE VALIDITY OF THIS INFORMATION.
------------------------------------------------------------------
ISSUE
This document can help you configure NetWare for SAA for
optimal performance and reliability by identifying supported
host connections and local area network (LAN) protocols.
This document also provides hardware and software
recommendations and system memory requirements. Because
NetWare for SAA runs on NetWare 3.11, 3.12, and 4.01,
information specific to each operating system is identified
where appropriate.
For a current list of tested and approved hardware, contact
the NetWire Sysop in NCONNECT forum, Section 3.
Overview of NetWare for SAA
NetWare for SAA is a set of NetWare Loadable Modules (NLMs)
that uses the NetWare 3.11, 3.12 or 4.01 operating system.
NetWare for SAA provides comprehensive integration between
NetWare and IBM mainframes and AS/400s. Because NetWare for
SAA is built on NetWare, it can run alongside file and print
services on a single NetWare server. This solution is ideal
for a small branch office, because it eliminates the cost of
a dedicated communications server and simplifies LAN
maintenance and management. In large corporate LANs,
NetWare for SAA can be installed to run on a server
dedicated to communications (using NetWare Runtime) to use
the server's full capability.
Host Configurations
A NetWare for SAA server can access multiple host or peer
machines using any of the following connection options:
Token-Ring, Ethernet, Synchronous Data Link Control (SDLC),
Qualified Logical Link Control (QLLC), or custom data link
connections.
LAN Configurations
Workstations can access the NetWare for SAA server using any
of the LAN topologies supported by NetWare: ARCnet,
Ethernet, Token-Ring, LocalTalk, TokenTalk, and EtherTalk.
NetWare for SAA supports the Sequenced Packet
Exchange/Internetwork Packet Exchange (SPX/IPX) protocols,
Transmission Control Protocol/Internet Protocol (TCP/IP),
and AppleTalk network transport protocols. NetWare for SAA
can be accessed from workstations located anywhere on an
enterprise network composed of multiple interconnected LANs.
New Features for SAA 1.3B
NetWare for SAA 1.3B introduces the following new features:
Compatibility with NetWare 4.01. NetWare for SAA 1.3B
runs on NetWare 3.11, 3.12, or 4.01. If NetWarefor SAA
is installed on a NetWare 3.11 server that is
laterupgraded to a NetWare 4.01 server, NetWare for SAA
can detect theupgrade and make the appropriate changes.
Automated installation. The NetWare for SAA
installation utility automatically identifies the
version of NetWare running on the server (NetWare 3.11,
3.12, or 4.01) and installs the appropriate files.
Simple Network Management Protocol (SNMP) alert
support. NetWare for SAA now provides the ability to
send SNMP alerts to the NetWare Management System
(NMS).
Inclusion of both NetWare Runtime 3.12 and 4.01. The
NetWare for SAA package now includes copies of NetWare
Runtime 3.12 (3.5-inch diskettes) and NetWare Runtime
4.01 (CD-ROM). NetWare for SAA is packaged on both
CD-ROM and 3.5-inch diskettes. Online documentation is
provided on the CD-ROM for both NetWare for SAA and
NetWare 4.01.
NetView alert support for IBM Communications Manager
clients. NetWare for SAA management capabilities have
been enhanced to provide tighter integration with the
IBM OS/2 Communications Manager/2 1.0. NetWare for SAA
can now be used to transfer NetView alerts and commands
between the host and OS/2 Communications Manager/2
clients to provide greater flexibility for the
management of a branch office. In addition, NetWare
for SAA can send NetView alerts directly to the OS/2
Communications Manager/2 clients.
NetWare for SAA Session Options
NetWare for SAA is sold in 16-, 64-, 128-, and 254-session
varieties. Each product provides the specified number of
dependent sessions for configuring your NetWare for SAA
server as a physical unit (PU) type 2.0. In addition, you
also receive an equal number of independent sessions for
configuring your NetWare for SAA server as a PU 2.1. Two
NetWare for SAA products can be installed on the same server
to increase the number of supported sessions. For example,
you can install two 64-session products to get 128
independent and dependent sessions, or a 16-session product
and a 64-session product to get 80 independent and dependent
sessions.
You do not need to purchase two host adapters to use two
copies of NetWare for SAA. You can use the sessions from
any combination of two NetWare for SAA products over a
single host link (up to 253 sessions). If you have two host
links, you can divide the number of sessions you have
available between the two host links, assigning any number
of sessions to one link and the remaining number of sessions
to the other host link.
NetWare for SAA Server Connection Options
NetWare for SAA can support two concurrent host connections
to the same host or two different hosts from a single
NetWare for SAA server. If you are connecting to two
different hosts, those hosts do not need to be the same
type. For example, you can have one connection to an AS/400
minicomputer and a second connection to a mainframe.
If you have two hosts, the connections to the hosts can be
of the same type; for example, two Token-Ring host
connections. The connections can also be of different
types-one SDLC and one Token-Ring host connection, for
example.
The NetWare for SAA server can be configured for three types
of connections: upstream, downstream, and peer connections.
This document uses the terms upstream, downstream, and peer
to indicate relationships from the point of view of the
NetWare for SAA server.
Upstream Connections
An upstream connection is a connection to a mainframe host
or any device that recognizes the NetWare for SAA server as
a Node Type 2.0. You can configure NetWare for SAA upstream
connections as follows:
Indirectly, through 317x cluster controllers and 37x5
front-end processors.
Directly through a channel-attached data link to a
S/370 mainframe without the intervention of a front-end
processor or cluster controller.
Directly to 9370 systems and IBM OS/2 SNA gateways.
Directly to an AS/400 minicomputer being used as an
upstream system. In this case, the AS/400 can be
configured for 3270 emulation with the IBM 3270 Remote
Attachment Feature. The most popular solution is the
use of PC Support, discussed under the "Peer
Connections" section.
NetWare for SAA supports up to 508 dependent concurrent
mainframe host sessions from a single server. Because
NetWare for SAA requires two of these sessions, the
total number of user sessions supported is 506. The
sessions can be any combination of display, printer, or
Advanced Program-to-Program Communications (APPC)
sessions.
Improved host connectivity features introduced with NetWare
for SAA 1.3 include the following:
Increased adapter support. NetWare for SAA supports
any Token-Ring or Ethernet adapter that is compliant
with the Open Data-Link Interface (ODI) 4.0.
Bundled ODI drivers. Several drivers are bundled with
NetWare for SAA for your convenience. Some drivers are
ODI 4.0-compliant, and some are not. Be sure to check
the Novell Labs NetWare for SAA Tested and Approved
Hardware Matrix for the latest versions of the
following drivers:
Token-Ring drivers include:
IBM Token-Ring 16/4 Adapter
IBM Token-Ring BusMaster Adapter
Novell Token Ring NTR2000 Adapter
Ethernet drivers:
Novell NE1000+ Adapter
Novell NE2000+ Adapter
Novell NE/2+ Adapter
Novell NE3200+ Adapter
Novell NE/2-32+ Adapter
SDLC drivers include:
IBM Multiprotocol Adapter
Microdyne Synchronous
EXOS Adapter
Microdyne Synchronous/V.35
EXOS Adapter
Microdyne NetWare for SAA Synchronous Adapter for
PC
Microdyne NetWare for SAA Synchronous Adapter for
PS/2
EiconCARD/PC
Note that if ODI drivers are mixed with non-ODI
drivers, problems can occur.
Ethernet support. Ethernet upstream connection support
for any system with Ethernet capabilities.
Channel attachment support. Third-party developers have
created specialized solutions for host connectivity,
such as channel-attachment support for S/370
mainframes, to eliminate the need for front-end
processors and cluster controllers. Three such
solutions are the Memorex Telex 9430, Bus-Tech Inc.'s
3172-BT1, and Apertus DataStar/DataCenterHub
interconnected controllers.
Automatic host link connection and disconnection for
SDLC and Qualified Logical Link Control (QLLC) switched
data links. Automatic host link connection establishes
the link when the first workstation logs on. Automatic
host link disconnection disconnects the link when all
workstations using the link have become inactive.
Using a Token-Ring Host Link
NetWare for SAA can connect through a Token-Ring host link
to a 3172 controller, a 3174 controller, a 37xx
communications processor, a 9370 host processor, or an
AS/400 minicomputer. Any ODI 4.0-compliant Token-Ring
adapter tested by Novell Labs can be used; some restrictions
may apply. For the most current list, refer to Novell Labs
NetWare for SAA Tested and Approved Hardware Matrix.
In a high-traffic environment, Novell recommends using more
than one adapter in your NetWare for SAA server. One
alternative is to install a Token-Ring adapter to handle the
LAN traffic and another adapter for each host connection. A
second alternative is to install one adapter for the LAN
traffic and another adapter for both host connections.
NetWare for SAA can run with a single adapter for both the
LAN and the host; however, the one-adapter-per-connection
configuration provides optimal performance.
Using an Ethernet Host Link
NetWare for SAA can connect through an Ethernet host link to
a 3172 controller, a 37xx communications processor, a 9370
host processor, or an AS/400 minicomputer. Any ODI
4.0-compliant Ethernet adapter tested by Novell can be used;
some restrictions may apply. For the most current list,
refer to Novell Labs NetWare for SAA Tested and Approved
Hardware Matrix.
In a high-traffic environment, Novell recommends using more
than one adapter in your NetWare for SAA server. One
alternative is to install an Ethernet adapter to handle the
LAN traffic and another adapter for each host connection. A
second alternative is to install one adapter for the LAN
traffic and another adapter for both host connections.
NetWare for SAA can run with a single adapter for both the
LAN and the host; however, the one-adapter-per-connection
configuration provides optimal performance.
Using an SDLC Host Link
NetWare for SAA can connect through an SDLC host link to a
37xx communications processor, a 9370 host processor, or an
AS/400 minicomputer. You can connect to two hosts with one
or two adapters installed. For the most current list of
drivers, refer to the Novell Labs NetWare for SAA Tested and
Approved Hardware Matrix.
Using a QLLC/X.25 Host Link
NetWare for SAA can connect through a QLLC host link to an
X.25 network. The required Call Support Layer (CSL)
software is bundled with NetWare for SAA. For the most
current list of drivers and hardware support, refer to the
Novell Labs NetWare for SAA Tested and Approved Hardware
Matrix.
Using a Channel-Attached Host Link
NetWare for SAA can connect through a channel-attached data
link to a mainframe computer. For the most current list of
hardware support, refer to the Novell Labs NetWare for SAA
Tested and Approved Hardware Matrix.
Using AS/400 3270 Emulation
If you are not using IBM's PC Support, you can still access
AS/400 applications using 3270 emulation through the IBM
AS/400 3270 Remote Attachment Feature, which is part of the
OS/400 operating system. IBM 3278/79 (LU Type 2) display
emulation and IBM 3287 (LU Type 1) printer emulation is
supported. Workstations in this configuration require the
Attachmate 3270 LAN Workstation for DOS, 3270 LAN
Workstation for Windows, or 3270 LAN Workstation for
Macintosh emulation software, or another third-party 3270
emulation product. There are some limitations on using a
3270 data stream to connect to an AS/400. Refer to the IBM
AS/400 Communications 3270 Device Emulation User's Guide for
information on these limitations.
When connected to an AS/400 using the 3270 Remote Attachment
feature, NetWare for SAA supports up to two host connections
and up to 64 sessions per connection. (The 64-session limit
is an AS/400 limitation.) The sessions can be any
combination of display or printer sessions. In addition, if
you want APPC you can create a second PU 2.1 host connection
that supports up to 253 sessions.
NetWare for SAA supports Token-Ring, Ethernet, SDLC, and
QLLC /X.25 connections to the AS/400.
Downstream Connections
Downstream PUs can be connected and configured because of
the NetWare for SAA 1.3 PU Concentrator feature. NetWare
for SAA provides a host connection and logical unit (LU)
allocation on behalf of the downstream PU. The downstream
PU appears as a PU 2.0 to the NetWare for SAA server.
Because the host connection and the downstream PU connection
must use the same adapter in the NetWare for SAA server,
NetWare for SAA 1.3 supports only the Token-Ring, Ethernet,
and QLLC topologies. Keep this limitation in mind when
planning your network configuration.
NetWare for SAA can support up to 253 downstream PUs per
server on a Token-Ring or Ethernet network, and up to 32
downstream PUs per server on a QLLC network. The downstream
PUs can be IBM AS/400 systems, OS/2 SNA gateways, IBM OS/2
Communications Manager clients, other NetWare for SAA 1.2
and 1.3 servers, or IBM 317x cluster controllers.
Peer Connections
A peer connection is a connection to any device that
recognizes a NetWare for SAA server as a Node Type 2.1. A
PU Node Type 2.1 node can establish sessions with other PU
2.1 nodes without the mediation of a system services control
point (SSCP). For example, a peer connection can exist
between the NetWare for SAA server and another NetWare for
SAA server, an IBM OS/2 SNA gateway, an AS/400 system, an
IBM 37xx controller, and a 317x cluster controller.
NetWare for SAA supports up to 506 concurrent user sessions
from a single server for any peer connection except a PC
Support connection. The session limit for an AS/400 with
IBM PC Support Router is 253, and only one profile can be
used. (You can connect to up to 128 different AS/400
computers. For details, refer to the "Connecting to an
AS/400 Minicomputer" section.
Combining Peer Connections with Upstream Connections
You can create a dependent Node Type 2.0 service profile
with LUs of type 0, 1, 2, or 3, and dependent LU6.2 LUs.
This service profile configures NetWare for SAA so that the
server is recognized as a Node Type 2.0. The Node Type 2.0
profile is required to define a connection to an upstream
system. Any sessions not specifically assigned for use by
the upstream communications link are available for use by
Node Type 2.1 peer-to-peer connections without being
specifically configured in a Node Type 2.1 service profile.
Undefined LUs or LUs configured as independent are limited
to LU6.2.
You can create a Node Type 2.1 service profile if you wish
to indicate specifically that a connection to an upstream
system is not needed.
Connecting to an AS/400 Minicomputer
NetWare for SAA 1.3 can improve PC Support connectivity
because it provides the following:
A single transport protocol. By enabling the NetWare
AS/400 Router to communicate over SPX/IPX protocols,
the NetWare shell can now run side by side with PC
Support applications. This feature eliminates the need
for IBM LAN Support.
Connectivity for remote LAN workstations to an AS/400.
NetWare for SAA allows access to the AS/400 by NetWare
clients over multiple router connections and by remote
users with the NetWare Access Server product. If you
are running IBM PC Support Workstation Emulation over
the NetWare Access Server, only IBM regular mode PC
Support can be used. This is because the Access Server
uses Extended Memory drivers to allow multiple
sessions. Extended DOS PC Support is not supported by
the NetWare Access Server. IBM's PC Support router
requires source routing bridges and does not support
Novell IPX routers.
Support for a variety of topologies and LAN adapters.
NetWare for SAA supports Token-Ring, ARCnet, and
Ethernet topologies, and all adapters tested by Novell.
IBM supports only IBM Token-Ring adapters and a few
NDIS Ethernet adapters.
Reduced workstation memory requirements. The NetWare
Router for AS/400 PC Support uses about 5 KB of RAM,
whereas IBM's router can use as much as 60 KB. In
addition, NDIS Ethernet drivers require considerable
memory.
When connected to an AS/400 minicomputer running IBM AS/400
PC Support, NetWare for SAA supports up to 253 concurrent
independent sessions over a single profile (host link).
These sessions must be APPC sessions. NetWare for SAA
supports Token-Ring, Ethernet, SDLC, and QLLC connections to
the AS/400 running PC Support. Over Token-Ring and Ethernet
lines, NetWare for SAA can connect to up to 128 AS/400
minicomputers that are accessible to each PC Support client.
Determining the Number of Sessions
When planning your network, you must calculate how many
sessions each PC Support user will need. Generally, each
active PC Support application on a workstation takes one
session. For example, starting Shared Folders initiates one
session. If you also bring up two 5250 emulation sessions
using PC Support's Workstation Function, you initiate two
more sessions. In this example, you would need three active
LU6.2 sessions.
How It Works
Installing IBM's PC Support (purchased separately, from IBM)
and Novell's NetWare Router for AS/400 PC Support on the
client enables IPX traffic to flow from the workstation to
the NetWare for SAA server and provides support for all IPX
bridges and routers to remote clients. The rest of the SNA
stack resides on the NetWare for SAA server, which uses
LU6.2 to communicate to PC Support on the AS/400. The
NetWare for SAA solution is compatible with all Advanced
Peer-to-Peer Networking (APPN) networks.
Note: You must load the NetWare Router to establish a
connection to the AS/400, even if NetWare for SAA profiles
are loaded.
Novell router software for the server and workstations is
included with NetWare for SAA. Third-party software, such
as the Wall Data_ RUMBA_ for the AS/400 product (available
from Wall Data, Inc., and sold by IBM as RUMBA/400),
Attachmate's Extra! for Windows 5250, Eicon's Access for
Windows 5250, CONNECTronix WinTronix/400 or NetSoft's
Elite/400 or Elite/400 DSP can be used to access an AS/400
using PC Support from an MS Windows workstation.
Interface Adapters
Novell supports a variety of host and LAN adapters in a
NetWare for SAA server.
LAN Interface Cards
Any network interface card tested and approved for NetWare
by Novell Labs should operate as a LAN card for NetWare for
SAA.
Host Interface Cards
Any network interface card tested and approved for NetWare
as ODI 4.0-compliant by Novell Labs should operate as a host
interface card for NetWare for SAA. Some restrictions may
apply. For more information or for the latest list of
tested adapters, refer to the Novell Labs NetWare for SAA
Tested and Approved Hardware Matrix.
Workstation Client Options
NetWare for SAA supports several emulators that run on the
five major desktop platforms: DOS, Windows, Macintosh, OS/2,
and UNIX. In addition, NetWare for SAA supports standalone
emulators through a Token-Ring, Ethernet, or QLLC/X.25
connection including IBM's Personal Communications/3270,
Microdyne's EXOS 3270 TR Server option, and the Attachmate
EXTRA! 3270 emulator.
3270 Emulation Applications
The 3270 emulation applications use SPX/IPX, AppleTalk, or
TCP/IP protocols to communicate with NetWare for SAA and
provide the display and keyboard portions of 3270 emulation.
All the protocol processing associated with the host
connection is managed by NetWare for SAA on the NetWare
server.
The 3270 software provides 3270 terminal and printing
emulation for a workstation to a host. This connection is
established through NetWare for SAA. For more information,
refer to the NetWare for SAA Solutions Guide.
The workstation products in the following list have been
developed by Novell or by third-party vendors to work with
NetWare for SAA. In the case of third-party products, refer
to the NetWare for SAA Solutions Guide for more information
on product features and compatibility.
DOS emulators
NetWare 3270 LAN Workstation for DOS by Attachmate
Attachmate EXTRA! for DOS
Digital Communication Associates' (DCA) IRMA
WorkStation for DOS
Farabi's SITER Workstation for DOS
Forvus Research's ForvusSAA for DOS
IDEA's 3270 for DOS
Network Software Associates' 3270/ElitePlus or PC 3270
MS Windows emulators
NetWare 3270 LAN Workstation for Windows by Attachmate
Attachmate's EXTRA! for Windows
DCA's IRMA WorkStation for Windows
Dr. Materna's SDX SAA
Eicon's Access for Windows
Forvus Research's ForvusSAA for Windows
IDEA's IDEAcomm 3270 for Windows
Network Software Associates' DynaComm/Elite
Wall Data's RUMBA for NetWare Systems
Zephyr's 3270 Passport for Windows
Macintosh emulators
NetWare 3270 LAN Workstation for Macintosh by
Attachmate
Avatar Corporation's MacMainFrame for NetWare for SAA
DCA's IRMA WorkStation for Macintosh
OS/2 emulators
Wall Data's RUMBA for OS/2
IBM's OS/2 Extended Edition 1.3
IBM's OS/2 2.0 with Extended Services 1.0
UNIX emulators
CLEO Communications' 3270LINXix for NetWare
System Strategies' EXPRESS 3270 for NetWare
IBM PC Support Applications (5250 Emulation)
The NetWare Router for AS/400 PC Support shipped with
NetWare for SAA allows you to access AS/400 minicomputers
using IBM's PC Support. Using a Node Type 2.1 PU
configuration provides 5250 printer and terminal emulation
and other services like file transfer, virtual printer, and
Shared Folders. The workstations use SPX to communicate
with the server. The rest of the SNA stack resides on the
server, which uses LU6.2 to communicate to the AS/400.
PC Support users can access AS/400 services using the
following workstation client software packages:
DOS emulators: IBM's PC Support
MS Windows emulators
Wall Data's RUMBA for the AS/400 (sold as RUMBA/400 by
IBM)
Network Software Associates' Elite/400 or Elite/400 DSP
Hardware Requirements and Recommendations
Select hardware for a NetWare for SAA server according to
the environment in which you plan to run it (NetWare 3.11,
NetWare 3.12, or NetWare 4.01; dedicated or integrated).
The following sections provide recommended software and
hardware configurations. For more information, contact
Novell Product Information or Novell Product Information at
1-800-NETWARE for the NetWare for SAA Tested and Approved
Hardware Matrix.
Server Hardware Requirements and Recommendations on a
NetWare 3.11 or NetWare 3.12 Platform NetWare for SAA
running on a NetWare 3.11 or 3.12 platform requires the
following:
At least 8 MB of RAM, depending on the number of
sessions and network traffic.
An 80386 or 80486 processor. NetWare for SAA should
operate on any NetWare server platform tested and
approved by IMSP.
The greater the processor speed, the better your server
performs. Below is a list of processor speeds recommended
to improve performance for the following number of sessions:
For 16 to 64 sessions-20 MHz or greater
For 64 to 128 sessions-25 MHz or greater
For 128 to 254 sessions-33 MHz or greater
For 254 to 506 sessions-50 MHz or greater
Not all computer systems have been tested to work with
Novell software. In addition, some systems that have been
tested to work with NetWare are incompatible with NetWare
for SAA. For a list of tested and approved systems, contact
Novell Product Information at 1-800-NETWARE.
Server Hardware Requirements and Recommendations on a
NetWare 4.01 Platform NetWare for SAA in a 4.01 platform
requires the following:
At least 12 MB of RAM, depending on the number of
sessions and network traffic.
An 80386 or 80486 processor. NetWare for SAA should
operate on any NetWare server platform tested and
approved by IMSP.
The greater the processor speed, the better your server
performs. Below is a list of processor speeds recommended
to improve performance for the following number of sessions:
For 16 to 64 sessions-25 MHz or greater
For 64 to 128 sessions-33 MHz or greater
For 128 to 506 sessions-50 MHz or greater
Not all computer systems have been tested to work with
Novell software. In addition, some systems that have been
tested to work with NetWare are incompatible with NetWare
for SAA. For a list of tested and approved systems, contact
Novell Product Information at 1-800-NETWARE.
System Memory Requirements
The following sections provide system memory required for
running NetWare for SAA with NetWare in a dedicated or
integrated configuration. In addition to the memory
requirements given in this section, there are several rules
of thumb to remember.
Additional host link. Adding a second host link
requires more memory for buffering. The amount
required depends on the type and speed of the host
links you are using.
Slow host link. A slower host link, such as an SDLC
dial-up link, requires additional memory for buffering.
Again, the amount of memory required depends on the
type and speed of the host link.
Slow processor speed. The slower the processor speed
of the server, the more memory is required for
buffering.
Slow host. A slower host requires additional memory on
the server for buffering.
Dedicated NetWare for SAA Server Memory Requirements on a
NetWare 3.11 or 3.12 Platform
If you are using NetWare Runtime 3.11 or 3.12, which is
shipped with NetWare for SAA, the minimum system memory
requirement is 8 MB. If you are upgrading from NetWare for
SAA 1.2 and are using a dedicated server with 6 MB, you can
continue to support environments with moderate traffic of up
to 10 sessions by setting the event control block (ECB)
count to 100.
The following table shows the minimum memory required if you
are using the default values for the number of NetWare for
SAA sessions you plan to run. Minimum memory means the
total system memory required for NetWare Runtime 3.11 or
3.12 and NetWare for SAA 1.3 running the listed number of
sessions. These numbers were obtained from a traffic model
of expected peak customer usage.
Sessions Minimum Memory Requirements
16 8 MB
32 10 MB
64 10 MB
80 10 MB
128 12 MB
253 16 MB
506 20 MB
This memory information was obtained in Novell's test
laboratory, on the following host-and-server configuration.
Your configuration may be different:
Tested Server Configuration Information (NetWare 3.11,
NetWare 3.12)
System: COMPAQ DeskPro 486/50L
Host Link Adapter: IBM Token Ring 16/4 (8 bit)
LAN Interface: NE3200 32-bit EISA Adapter
System Memory: 32 MB
SYS: Volume Size: 283 MB
Initial ECB Count: 500 (minimum packet receive
buffers)
Maximum Packet Size: 4202 bytes
NetWare Speed Rating: 1372
Tested Host Configuration Information (NetWare 3.11, NetWare
3.12)
Host Link Speed: 16 MB
Response/Request Unit Size: 4096
Data Size: LU type 2 Model 2 Screen, 1920
bytes (Data is sent to each
client.)
Dedicated NetWare for SAA Server Memory Requirements on a
NetWare 4.01 Platform
The following table shows the minimum memory required if you
are using the default values for the number of NetWare for
SAA sessions you plan to run. Minimum memory means the
total system memory required for NetWare Runtime 4.01 and
NetWare for SAA 1.3 running the listed number of sessions.
These numbers were obtained from a traffic model of expected
peak customer usage.
Sessions Minimum Memory Requirements
16 12 MB
32 14 MB
64 14 MB
80 14 MB
128 16 MB
253 20 MB
506 24 MB
This memory information was obtained in Novell's test
laboratory on the following host-and-server configuration.
Your configuration may be different:
Tested Server Configuration Information (NetWare 4.01)
System: COMPAQ DeskPro 486/50L
Host Link Adapter: IBM Token Ring 16/4 (8 bit)
LAN Interface: NE3200 32-bit EISA Adapter
System Memory: 32 MB
SYS: Volume Size: 283 MB
Initial ECB Count: 500 (minimum packet receive
buffers)
Maximum Packet Size: 4202 bytes
NetWare Speed Rating: 1372
Tested Host Configuration Information (NetWare 4.01)
Host Link Speed: 16 MB
Response/Request Unit Size: 4096
Data Size: LU type 2 Model 2 Screen, 1920
bytes (Data is sent to each
client.)
Integrated NetWare for SAA Server Memory Requirements on a
NetWare 3.11 or NetWare 3.12 Platform
If you are using NetWare 3.11 or NetWare 3.12 in an
integrated configuration (standard NetWare, not Runtime),
follow these steps to determine the minimum memory
requirements for running NetWare for SAA.
1. Calculate the memory requirement (M) for each volume:
1a. For each DOS volume:
M = 0.023 x VOLUME SIZE (in MB) / BLOCK SIZE(default is 4)
1b. For each volume with added File Transfer, Access,
and Management (FTAM) Name Space:
M = 0.032 x VOLUME SIZE (in MB) / BLOCK SIZE(default is 4)
2. Add memory requirements for all volumes:
TOTAL VOLUME MEMORY = Msys: - Mvol1: - Mvol2:
3. Add 2 MB for the operating system, and round the value
to the next higher integer. If the total is under 3
MB, use 4 MB for your NetWare memory requirement.
4. Add 4 MB to the NetWare memory requirement (determined
in Step 3) to run NetWare for SAA.
5. Add 20 KB for each session, and round up to the nearest
megabyte value.
For example, to get the minimum memory required for 64
sessions:
Add 4 MB to the 4 MB from Step 3 to get a total of
8 MB.
Multiply 20 KB by 64 sessions to get 1.28 MB.
Round 1.28 MB up to the nearest megabyte to get 2
MB.
Add 2 MB to 8 MB to get a total of 10 MB minimum
memory required.
Adjusting the Size of Memory Pools (NetWare 3.11, NetWare
3.12)
The NetWare SET MAXIMUM ALLOC SHORT TERM MEMORY parameter
controls the amount of memory the operating system can
allocate to the Alloc Short Term Memory pool. This pool
stores information such as service request buffers and user
connection information.
When running NetWare for SAA, you normally do not need to
increase the Alloc Short Term Memory pool. The NetWare SET
MAXIMUM ALLOC SHORT TERM MEMORY parameter can support values
up to 16 MB. The default is 2 MB; however, if your server
runs in an environment with high communication activity, set
the memory pool to 3 MB to start with. If you receive
system warning messages from the server indicating that the
Alloc Short Term Memory pool has reached its limit, increase
the parameter in increments of 1 MB.
Increasing Other Memory Pools (NetWare 3.11, NetWare 3.12)
As you increase the Alloc Short Term Memory pool, you may
notice shortages in other memory pools such as cache
buffers. If these shortages occur, you must increase
physical system memory as well. Use the NetWare MONITOR.NLM
program to view the amount of memory allocated to the Alloc
Short Term Memory pool.
Integrated NetWare for SAA Server Memory Requirements on a
NetWare 4.01 Platform
If you are using NetWare in an integrated configuration
(standard NetWare, not Runtime), follow these steps to
determine the minimum memory requirements for running
NetWare for SAA:
1. Assume 8 MB as the minimum RAM requirement.
2. Multiply the amount of your system's disk space (in
megabytes) by 0.008, and add this number to the 8 MB
from step 1.
3. For each volume with medium access control (MAC) or
File Transfer, Access, and Management (FTAM) Name
Space, add the following number of megabytes:
5 x (number of files)/ 1,048,576
4. Add 1 to 4 MB for additional cache buffer memory to
optimize performance. (The more RAM you can allocate
to the cache buffers, the better the operating system
performance.)
5. Add 4 MB to the NetWare memory requirement (determined
in Steps 1 to 4) to run NetWare for SAA.
6. Add 20 KB for each session, and round up to the nearest
megabyte value.
For example, to get the minimum memory required for 64
sessions:
Add 8 MB (assuming this was your total from Steps
1-4) to the 4 MB from Step 5 to get a total of 12
MB.
Multiply 20 KB by 64 sessions to get 1.28 MB.
Round 1.28 MB up to the nearest megabyte to get 2
MB.
Add 2 MB to 12 MB to get a total of 14 MB minimum
memory required.
System Volume Space Requirements on a NetWare 3.11 or
NetWare 3.12 Platform
Running NetWare for SAA with NetWare Runtime 3.11 or 3.12
requires a minimum of 40 MB of free system volume space for
NetWare operating system files and NetWare for SAA files.
Running NetWare for SAA with NetWare 3.11 or 3.12 in an
integrated configuration requires 20 MB of free system
volume space for the NetWare for SAA files in addition to
the space required for NetWare.
System Volume Space Requirements on a NetWare 4.01 Platform
Running NetWare for SAA with NetWare Runtime 4.01 requires a
minimum of 75 MB of free system volume space for NetWare
operating system files and NetWare for SAA files.
Running NetWare for SAA with NetWare 4.01 in an integrated
configuration requires 20 MB of free system volume space for
the NetWare for SAA files in addition to the space required
for NetWare.
Space Requirements for Upgrading to NetWare 4.01
If you are running NetWare for SAA on a NetWare 3.11 or
NetWare 3.12 server and are planning to upgrade to NetWare
4.01, a minimum of 85 MB of free system volume space is
required. This is because NetWare does not first delete
some of the old public files before installing NetWare 4.01.
Space Requirements for ElectroText and CBT Files
If you will be installing the ElectroText online versions of
NetWare or NetWare for SAA manuals, or the NetWare
computer-based training files, the following free system
volume space is required in addition to that required for
the software files:
NetWare 4.01 ElectroText - 45 MB
NetWare for SAA 1.3B ElectroText - 12 MB
NetWare 4.01 Computer-Based Training (CBT) - 14 MB
Performance Considerations
Use the information in the following sections when you set
up your network. The following information applies whether
you're using NetWare 3.11, 3.12, or 4.01.
Integrated Versus Dedicated Server
A measurement of CPU utilization on your NetWare server can
help you determine whether to install NetWare for SAA 1.3 on
your existing NetWare server in an integrated configuration
or on a server dedicated to NetWare for SAA. Novell's
recommendation is the following:
If your server has light-to-moderate traffic, and you
are planning to use 128 sessions or fewer, an
integrated configuration is adequate. If you have more
than 128 sessions, Novell recommends using a dedicated
server.
If your site has high network traffic, Novell
recommends a dedicated server.
Obtaining Your Own CPU Results
Novell measures CPU data using MONITOR.NLM. To obtain
accurate information for your NetWare 3.11 or 3.12 server,
use the -p parameter. The -p parameter is not needed if you
are using NetWare 4.01. To obtain CPU results, use the
following procedure:
1. Enter the following command at the NetWare system
console prompt (:):
For NetWare 3.11 or 3.12, enter load monitor -p
For NetWare 4.01, enter load monitor
2. Select Processor Utilization from the Available Options
menu.
3. Press <F3>. The NetWare for SAA CPU utilization number
is listed under SNAP.
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