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80 IBM ^ zSeries 990 Technical Guide
STI links balancing across books and MBAs
Figure 3-4 shows a 2084-B16 server’s initial configuration example with two fully populated
I/O cages (seven I/O domains on each one).
Figure 3-4 2084-B16 initial configuration example
The 2084-B16 server has two books in the CEC cage. The STI links are distributed across
books, MBAs, and I/O cages, as a result of the initial server configuration balancing.
Nearly the same number of STIs of each book’s MBA are used and spread across the two I/O
cages, resulting in the best STI link distribution for both performance and availability.
Figure 3-5 on page 81 shows an upgrade from this 2064-B16 server to a model D32,
maintaining the same I/O cages and I/O cards.
2084-B16 CEC Cage
I/O Cage 1 I/O Cage 2
Book 0
Book 1
STIs
I/O Domains
STI Links
I/O Cards
MBA
0
MBA
1
MBA
2
MBA
0
MBA
1
MBA
2
- IBM zSeries 990 1
- Technical Guide 1
- May 2004 3
- Second Edition (May 2004) 4
- Contents 5
- Contents v 7
- Trademarks 10
- Become a published author 12
- Comments welcome 12
- 1.1 Introduction 15
- 1.2 z990 models 16
- 1.3.1 Processor 17
- 1.3.2 Memory 18
- 1.3.6 Spanned channels 19
- 1.3.7 I/O connectivity 20
- Up to 1024 ESCON channels 21
- FICON CTC function 22
- FICON Cascaded Directors 22
- OSA-Express 22
- Gigabit Ethernet 23
- 1000BASE-T Ethernet 23
- Token Ring 23
- 1.3.8 Cryptographic 24
- Internal Coupling (IC) 26
- 1.3.11 Hardware consoles 27
- 1.3.12 Concurrent upgrades 27
- Capacity BackUp (CBU) 28
- 1.3.13 Performance 29
- 1.3.15 Software 30
- 1.3.16 Software support 31
- Software pricing 32
- 1.3.17 Summary 33
- System structure and design 35
- STI Slots 36
- Memory cards 36
- Memory Cards 37
- Book 0Book 3 Book 1 Book 2 38
- MRU 0 MRU 1 38
- 2.1.3 Memory 39
- 2.1.4 Ring topology 41
- 2.1.5 Connectivity 43
- Book upgrade 44
- Book front view 44
- STI connectors 44
- 2.1.6 Frames and cages 45
- I/O cages 46
- 2.1.7 The MCM 47
- Figure 2-11 MCM chip layout 48
- 2.1.9 Summary 49
- 2.2 System design 50
- 2.2.2 Book design 51
- Memory Card 52
- MBA Card 52
- 2.2.3 Processor Unit design 53
- Compression Unit on a chip 55
- Without BHT: 56
- With BHT: 56
- IEEE Floating Point 57
- Translation Lookaside Buffer 57
- Instruction grouping 57
- Extended Translation Facility 58
- Central Processors 59
- Internal Coupling Facilities 60
- Purpose of a zAAP 61
- System Assist Processors 62
- Reserved processors 63
- Application preservation 64
- Sparing rules 64
- 2.2.5 Memory design 65
- Memory allocation 66
- Central storage (CS) 67
- Expanded storage (ES) 67
- 2.2.6 Modes of operation 68
- Logical Partitioning overview 69
- Logically partitioned mode 72
- * ’ and then 73
- 2.2.7 Model configurations 74
- Software models 75
- PU conversions 76
- Capacity Backup (CBU) 77
- Software model MSU values 78
- 2.2.8 Storage operations 79
- ESA/390 mode 80
- ESA/390 TPF mode 81
- Coupling Facility mode 81
- Linux Only mode 81
- 2.2.9 Reserved storage 82
- 2.2.12 I/O subsystem 83
- 2.2.13 Channel Subsystem 84
- I/O system structure 85
- 3.1 Overview 86
- Figure 3-2 z990 I/O cage 88
- Domain I/O slots in domain 88
- I/O Cage 90
- CEC Cage 90
- STI-2 Extender card 91
- STI-3 Extender card 91
- 2084-B16 CEC Cage 92
- I/O Cage 1 I/O Cage 2 92
- 2084-D32 CEC Cage 94
- I/O Cage 1 95
- /O Cage 2 95
- 3.3.1 I/O feature cards 96
- PCIXCC 0868 97
- PCICA 0862 97
- I/O Cage 1 - Front 98
- I/O cage slot 99
- PCHID numbers 99
- 3.4 Connectivity 101
- Configuration rules notes 102
- Spanned and shared channels 103
- 3.4.2 ESCON channel 105
- 16-port ESCON channel sparing 107
- Channel Sparing 108
- 3.4.3 FICON channel 109
- FICON Express SX feature 110
- 3.4.4 OSA-Express adapter 111
- HiperSockets function 116
- ISC-3 link 117
- ICB-4 link 118
- ICB-3 link 118
- ICB-2 link 118
- IC links 119
- 3.4.7 Cryptographic features 120
- Channel Subsystem 121
- LCSS 0, 1, 2, 3 30 30 1024 122
- Multiple Image Facility (MIF) 123
- Logical partition number 123
- Logical partition identifier 124
- MIF Image ID (MIFID) 124
- Logical partition name 124
- 4.1.3 Channel spanning 126
- 4.3 LCSS-related numbers 129
- Cryptography 131
- Chapter 5. Cryptography 121 133
- Programming 134
- Chapter 5. Cryptography 123 135
- 5.3.2 The PCICA feature 137
- 5.3.3 Configuration rules 138
- Chapter 5. Cryptography 127 139
- PCICA 6 2 12 16 30/30 139
- PCIXCC 4 1 4 16 30/30 139
- 5.5 Software requirements 141
- Software support 145
- 6.1 Operating system support 146
- 6.2 z/OS software support 146
- G5, G6, z800, or z900 148
- Planned z/OS V1.6 support 150
- 6.2.3 HCD support 152
- 6.2.4 Automation changes 152
- 6.2.5 SMF support 152
- 6.2.6 RMF support 153
- 6.2.7 ICKDSF requirements 153
- 6.2.8 ICSF support 153
- Stand-alone dump 154
- Automation 154
- 6.3 z/VM software support 157
- 6.5 TPF software support 158
- 6.6 Linux software support 159
- 6.8 Workload License Charges 162
- Processor identification 163
- Channel to channel links 164
- Sysplex functions 167
- 7.1 Parallel Sysplex 168
- High capacity 169
- Dynamic workload balancing 169
- Systems management 170
- Resource sharing 170
- Single system image 170
- Message Time Ordering 171
- External Reference ID 172
- Link Type z990 Max 176
- Peer mode links 177
- Meaning of PARTITION 178
- Function Setup 179
- Function 180
- 7.3.1 Benefits 181
- 7.3.2 CF structure duplexing 182
- 7.3.3 Configuration planning 182
- CF to CF link 183
- CF structure duplexing 183
- 7.4.1 GDPS/PPRC 184
- GDPS/PPRC HyperSwap™ 185
- Planned HyperSwap 186
- Unplanned HyperSwap 186
- GDPS FlashCopy® V2 support 187
- 7.4.2 GDPS/XRC 188
- Application 189
- IRD overview 190
- 7.5.1 LPAR CPU management 191
- Value of CPU management 192
- Workload type Priority 195
- Unique LPAR cluster names 196
- 7.5.6 References 197
- Capacity upgrades 199
- 8.1 Concurrent upgrades 200
- Model upgrades 201
- Planned upgrades 201
- Unplanned upgrades 202
- Capacity upgrade functions 202
- CUoD for processors 203
- CUoD for memory 205
- + Model upgrade 206
- CUoD for I/O 207
- Internet 210
- Activation 213
- Initiation 216
- Ordering 216
- $ 217
- 8.5 Capacity BackUp (CBU) 218
- CBU activation 220
- Image upgrades 220
- CBU deactivation 220
- CBU testing 221
- 8.6 Nondisruptive upgrades 222
- 8.6.1 Upgrade scenarios 223
- ^ zSeries 990 Technical Guide 224
- 8.7.1 Balanced system design 231
- Multi-book structure 232
- Book 0 Book 1 233
- 8.7.2 Superscalar processors 234
- 8.8 Capacity measurements 235
- LSPR workloads prior to z990 237
- LSPR workloads for z990 238
- CB-S 20% 10% 15% 17.5% 25% 240
- 20%----20% 240
- 20% 30% 20% 15% - 20% 240
- Workload type 241
- LSPR-Mix 241
- (Default) 241
- Environmental requirements 243
- 9.1 Introduction 244
- 9.2 Weights 245
- 9.3 Dimensions 246
- Hardware Management Console 247
- G5/G6 Series 249
- different Hardware 250
- Token-Ring LAN 251
- Enterprise 252
- Ethernet LAN 253
- Token-Ring 255
- Remote operations 256
- Support Element 257
- Fiber optic cabling services 261
- Glossary 255 267
- Glossary 257 269
- ESCON channel 270
- Glossary 259 271
- Related publications 273
- Online resources 274
- Related publications 263 275
- Numerics 277
- (0.5” spine) 281
- 0.475”<->0.873” 281
- 250 <-> 459 pages 281
- zSeries 990 284
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