Specifications
Table Of Contents
- IBM PC Server and Novell NetWare Integration Guide
- Abstract
- Contents
- Figures
- Tables
- Special Notices
- Preface
- Chapter 1. IBM PC Server Technologies
- Processors
- Clock Rate
- External Interfaces
- Processor Types
- Multiprocessing
- Memory
- Caches
- Memory Interleaving
- Dual Path Buses
- SynchroStream Technology
- Memory Error Detection and Correction
- Standard (Parity) Memory
- Error Correcting Code (ECC)
- Error Correcting Code- Parity Memory (ECC- P)
- ECC on SIMMs (EOS) Memory
- Performance Impact
- Memory Options and Speed
- Bus Architectures
- ISA Bus
- EISA Bus
- Micro Channel Bus
- PCI Bus
- Disk Subsystem
- Hard Disk Interfaces
- SCSI Technology
- SCSI Adapters
- Hard Disk Drives
- RAID Technology
- RAID Classifications
- Recommendations
- LAN Subsystem
- Shared RAM Adapters
- Bus Master Adapters
- PeerMaster Technology
- Security Features
- Tamper- Evident Cover
- Secure I/ O Cables
- Passwords
- Secure Removable Media
- Selectable Drive Startup
- Unattended Start Mode
- Systems Management
- DMI
- SNMP
- NetFinity
- SystemView
- Fault Tolerance
- NetWare SFT III
- Uninterruptible Power Supply (UPS)
- APC PowerChute
- Chapter 2. IBM PC Server Family Overview
- Chapter 3. Hardware Configuration
- The Setup Program
- Main Menu
- Advanced Menu
- Security
- EISA Configuration Utility
- SCSI Select Utility Program
- System Programs
- Starting From the System Partition
- Starting From the Reference Diskette
- Main Menu Options
- Backup/ Restore System Programs Menu
- Set Configuration Menu
- Set Features Menu
- Test the Computer
- More Utilities Menu
- Advanced Diagnostic Program
- RAID Controller Utility
- Drive Information
- Formatting the Disks
- Defining a Hot- Spare Disk
- Creating a Disk Array
- Defining Logical Drives
- Setting the Write Policy
- Initializing the Array
- Backup/ Restoring the Configuration
- Chapter 4. Novell NetWare Installation
- ServerGuide Overview
- Starting ServerGuide
- Installing NetWare 4.1 with ServerGuide
- Installing NetWare 3.12 with Diskettes
- Hardware Requirements
- Software Requirements
- Information Requested at Time of Installation
- Installation Files
- Installation Procedure
- Installing NetWare 4.1 with the Original CD- ROM
- Hardware Requirements
- Software Requirements
- Installation Procedure
- NetFinity Services for NetWare
- System Requirements
- Installing NetFinity Services for NetWare
- The RAID Administration for NetWare Utility
- Installing the Utility
- Hard Disk Failure Simulation
- Simulating with a Hot Spare Drive
- Simulating without a Hot Spare Drive
- Chapter 5. Performance Tuning
- Appendix A. EISA Configuration File
- Appendix B. Hardware Compatibility, Device Driver, and Software Patch Information
- Appendix C. Configuring DOS CD-ROM Support
- List of Abbreviations
- Index
- Special Characters C
- Numerics
- A
- B
- D
- E
- F
- H
- M
- I
- N
- K
- L
- O
- P
- S
- Q
- R
- T
- U
- V
- W
- Z
- ITSO Technical Bulletin Evaluation RED000
5.3.4 Memory Requirements
The following sections present some guidelines for calulating total server
memory requirements for both the NetWare V3.12 and V4.1 environments.
5.3.4.1 Calculating Server Memory Requirements (V3.12)
To calculate the total system memory required, use the following guidelines:
1. Allocate a minimum of 4MB of RAM for loading the operating system, disk
drivers, LAN drivers and the INSTALL.NLM.
2. Add 2MB for each of the following you plan to install:
•
Additional NetWare products(such as NetWare for Macintosh, or NFS)
•
A print server on this server (PSERVER.NLM)
•
Any of the following NLMs:
a. CBLIB.NLM
b. STREAMS.NLM
c. BTRIEVE.NLM
3. Allocate memory for FAT and directory caching. To calculate this
requirement, multiply the amount of your server′s hard disk space (in MB) by
0.008. For example, if you have a total of 1 GB of disk space, multiply 1 GB
by 0.008. This results in a requirement for an additional 8MB of RAM.
4. Add at least 4MB for additional cache buffers to optimize performance. The
more memory you can allot to cache buffers, the better your system′s
performance will be.
5.3.4.2 Calculating Server Memory Requirements (V4.1)
The memory requirements for NetWare 4.1 can be obtained using the same
formula used for version 3.12 with the following changes:
•
The operating system needs 6MB instead of 4MB.
•
NetWare 4.1 can benefit even more from cache memory. Start with at least
6MB for cache buffers.
5.3.5 System Processor
In a pure file serving environment, the processor is usually not the bottleneck.
However, in many NetWare implementations, there are other functions loaded on
the server which can create a heavier load on the CPU. For example, a
database engine loaded as a NetWare NLM can create a heavy load on the
system CPU.
A high CPU utilization on a sustained basis is usually, but not always, an
indication of a CPU bottleneck. By using the MONITOR.NLM utility, you can
identify whether you have a CPU bottleneck or if you have any inefficient or
CPU-intensive resources in the server.
For example, when monitoring the CPU utilization you may observe a high level
of utilization. This does not necessarily mean that the system processor is the
bottleneck. Other potential focus areas are the server hardware subsystems
such as the disk controller and the LAN adapter.
One way to measure the load on the CPU from any one subsystem is to monitor
the frequency of interrupt servicing. If, for example, a LAN adapter is constantly
servicing packets and utilizing a large percentage of the CPU time for interrupt
Chapter 5. Performance Tuning 187