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In interleaved systems, memory is currently organized in either two or four
banks. Figure 3 on page 7 shows a two-way interleaved memory
implementation.
Figure 3. Two-Way Interleaved Memory Banks
Memory accesses are overlapped so that as the controller is reading/writing
from bank 1, the address of the next word is presented to bank 2. This gives
bank 2 a head start on the required access time. Similarly, when bank 2 is being
read, bank 1 is fetching/storing the next word.
The PC server 500 uses a two-way interleaved memory. In systems
implementing two-way interleaved memory, additional memory must be added in
pairs of single in-line memory modules (SIMMs) operating at the same speed
(matched SIMMs).
The PC server 720 uses a four-way interleaved memory with a word length of 64
bits. In this system, in order to interleave using 32-bit SIMMs, it is necessary to
add memory in matched sets of eight SIMMs each.
1.3.3 Dual Path Buses
A dual path bus allows both the processor and a bus master to access system
memory simultaneously. Figure 4 on page 8 shows a dual path bus
implementation.
Chapter 1. IBM PC Server Technologies 7
- Integration Guide 1
- December 1995 1
- First Edition (December 1995) 2
- Abstract 3
- Contents 4
- Special Notices 11
- NetWare Integration Guide 12
- Related Publications 14
- Acknowledgments 15
- 1.1 Processors 16
- 1.1.1 Clock Rate 16
- 1.1.2 External Interfaces 17
- 1.1.3 Processor Types 17
- 1.2 Multiprocessing 18
- 1.3 Memory 18
- 1.3.1 Caches 19
- 1.3.1.1 SMP Caching 20
- 1.3.2 Memory Interleaving 21
- 1.3.3 Dual Path Buses 22
- 10 NetWare Integration Guide 25
- 1.5 Bus Architectures 27
- 1.4.5 Performance Impact 27
- 1.5.1 ISA Bus 28
- 1.5.2 EISA Bus 28
- 1.5.3 Micro Channel Bus 28
- 14 NetWare Integration Guide 29
- 1.5.4 PCI Bus 30
- 1.6 Disk Subsystem 31
- 1.6.1 Hard Disk Interfaces 31
- 1.6.2 SCSI Technology 32
- 18 NetWare Integration Guide 33
- 1.6.3 SCSI Adapters 34
- 20 NetWare Integration Guide 35
- 1.6.4 Hard Disk Drives 36
- 1.6.5 RAID Technology 37
- 1.6.6 RAID Classifications 38
- Number of Disks in the array 39
- 24 NetWare Integration Guide 39
- 30 NetWare Integration Guide 45
- 1.6.7 Recommendations 46
- 1.7 LAN Subsystem 46
- 1.7.1 Shared RAM Adapters 46
- 1.7.2 Bus Master Adapters 47
- 1.7.3 PeerMaster Technology 48
- 1.8 Security Features 49
- 1.8.1 Tamper-Evident Cover 50
- 1.8.2 Secure I/O Cables 50
- 1.8.3 Passwords 50
- 1.8.4 Secure Removable Media 51
- 1.8.6 Unattended Start Mode 52
- 1.9 Systems Management 52
- 1.9.1 DMI 52
- 38 NetWare Integration Guide 53
- 1.9.2 SNMP 54
- 1.9.2.2 SNMP Agent 55
- 1.9.2.3 SNMP Manager 55
- 1.9.2.4 Traps 55
- 1.9.3 NetFinity 56
- 42 NetWare Integration Guide 57
- 1.9.3.2 NetFinity Manager 58
- 44 NetWare Integration Guide 59
- 1.9.4 SystemView 60
- 46 NetWare Integration Guide 61
- 1.10 Fault Tolerance 62
- 1.10.1 NetWare SFT III 63
- Mirrored Server Link (MSL): 64
- 50 NetWare Integration Guide 65
- 52 NetWare Integration Guide 67
- 1.11.1 APC PowerChute 68
- 54 NetWare Integration Guide 69
- Copyright IBM Corp. 1995 55 70
- 2.1.1 IBM PC Server 300 71
- 2.1.2 IBM PC Server 310 72
- 2.1.3 IBM PC Server 320 EISA 73
- 2.1.4 IBM PC Server 320 MCA 74
- 2.1.5 IBM PC Server 500 75
- 2.1.6 IBM PC Server 520 EISA 76
- 2.1.7 IBM PC Server 520 MCA 77
- 2.1.8 IBM PC Server 720 78
- Copyright IBM Corp. 1995 65 79
- 3.1 The Setup Program 81
- 3.1.1 Main Menu 81
- 3.1.2 Advanced Menu 82
- 0632 Diskette Drive Error 83
- 70 NetWare Integration Guide 84
- 3.1.3 Security 85
- Incorrect password 86
- System disabled 86
- 72 NetWare Integration Guide 86
- _Txx.BIN for DX2-66 models 87
- _Txx.BIN for Pentium models 87
- 74 NetWare Integration Guide 88
- 76 NetWare Integration Guide 90
- 78 NetWare Integration Guide 92
- SCSI Parity Checking: 93
- 80 NetWare Integration Guide 94
- Include in BIOS SCAN 95
- 3.4 System Programs 96
- 3.4.3 Main Menu Options 98
- 3.4.5 Set Configuration Menu 100
- 88 NetWare Integration Guide 102
- 90 NetWare Integration Guide 104
- 3.4.6 Set Features Menu 105
- 92 NetWare Integration Guide 106
- Enter password 107
- 94 NetWare Integration Guide 108
- 96 NetWare Integration Guide 110
- 3.4.7 Test the Computer 111
- 3.4.8 More Utilities Menu 112
- Run System Checkout: 114
- 3.5 RAID Controller Utility 115
- 3.5.1 Drive Information 117
- 3.5.2 Formatting the Disks 118
- Stripe Unit size: 120
- Rebuild Priority: 120
- Parity placement: 120
- Read-Ahead: 120
- 3.5.4 Creating a Disk Array 122
- 3.5.5 Defining Logical Drives 123
- 3.5.7 Initializing the Array 126
- 4.1 ServerGuide Overview 128
- 4.2 Starting ServerGuide 128
- Start Here: 130
- Software Installation: 130
- NetFinity Overview: 130
- Utility Programs: 130
- Performance Tuning: 130
- Online Documentation: 131
- Figure 71. Installing NetWare 132
- ServerGuide 136
- 4.4.1 Hardware Requirements 140
- 4.4.2 Software Requirements 140
- 4.4.4 Installation Files 140
- 4.4.5 Installation Procedure 141
- LOAD C:SERVER.312IBMRAID 143
- Figure 86. Volume Status 145
- TOKEN, and then press Enter 146
- BIND IPX TO TOKEN 146
- DOWN at the colon prompt 147
- 4.5.1 Hardware Requirements 148
- 4.5.2 Software Requirements 148
- 4.5.3 Installation Procedure 148
- Figure 91. Installation Menu 149
- Figure 94. Create Partition 151
- case-sensitive 154
- 4.6.1 System Requirements 157
- 4.6.2.3 Starting NetFinity 163
- 4.7.1 Installing the Utility 164
- Figure 136 177
- Chapter 5. Performance Tuning 179
- latency 180
- 5.2.1 DatagLANce 184
- 5.2.2.1 MONITOR.NLM 185
- 5.2.2.2 Set Command 186
- 5.3 Tuning NetWare 187
- 5.3.1 Disk Subsystem 188
- 5.3.1.3 Turbo Fat Indexing 189
- 5.3.1.4 Directory Caching 190
- 5.3.1.5 File Caching 191
- Recommendation: 192
- NetWare 3.12: 192
- NetWare 4.1: 192
- 5.3.1.9 Multiple Volumes 193
- 5.3.2 Network Subsystem 194
- 5.3.2.2 Packet Size 195
- Recommendation 196
- 5.3.3 System Memory 197
- Memory Fragmentation: 198
- 5.3.4 Memory Requirements 199
- 5.3.5 System Processor 199
- LOAD MONITOR -P 200
- Patch Information 210
- ∼ towfiq/lan-drivers.html 212
- MSCDEX.EXE 214
- List of Abbreviations 215
- Index 209 218
- Index 211 220
- BUSINESS REPLY MAIL 223
- SG24-4576-00 224
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