Table of contents for Advanced POWER Virtualization on IBM e-server p5 servers. Introduction and basic configuration / Bill Adra ... [et al.].


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Chapter 1. Introduction ........................................1
1.1  IBM's Virtualization Engine and on demand ................... ..... 2
1.2 Virtualization engine on IBM Žserver p5. .............. . .... . 4
1.2.1 POWER Hypervisor ................................. 4
1.2.2  Simultaneous multi-threading (SMT). .......... ..... .. .  .. 4
1.2.3 LPAR and Micro-Partitioning................................ 5
1.2.4  Virtual LAN  ........................ ................  5
1.2.5  Virtual I/O  ............................................  5
1.2.6 Capacity on Demand .................................... 5
1.2.7  Multiple operating system  support .......... ......... . .......... 6
1.3  Virtualization engine on IBM  (server i5 ......... .......... . ......... 6
1.4 RAS and security............................................ 7
1.4.1 Reliability, availability, and serviceability. ................ ... 7
1.4.2 Security .............................................. 8
1.5 Operating system support details ................ ............. 9
1.5.1 AIX support .............. ................. ........  9
1.5.2 Linux support ......................................... 13
1.5.3 i5/OS support ........................................ 13
1.6  Comparison with zSeries virtualization engine .................  .. 13
1.6.1 Enabling software ..................................... 14
1.6.2  Sharing processor resources  ............... ........... . 14
1.6.3 Sharing memory resources.............................. 14
1.6.4 Sharing I/O resources .................................. 15
1.6.5 Sharing network resources ................ ............. 15
Chapter 2. POWER5 processor introduction  ....................... 17
2.1 General description ......................................... 18
2.1.1  POWER5 system  structure ............... .. ............  18
2.2 POWER4 to POWERS comparison..........................23
2.3 Introduction to simultaneous multi-threading. .......... ... . ... ..25
2.3.1 Multi-threading techniques .............................. 26
2.3.2  POWER5 SMT  ................... ... ...... .... .....  27
2.3.3 AIX 5L and SMT ............................    .......30
2.3.4 SMT control .......................................... 31
2.3.5 SMT performance monitor and tuning. ..................... .37
Chapter 3. Virtualization engine technologies on p5 servers.......... 41
3.1 Advanced POWER Virtualization feature ......................  42
3.2 Introduction to the POWER Hypervisor. ...................... . 45
3.2.1 POWER Hypervisor implementation ................... .. ..46
3.2.2 POWER Hypervisor processor dispatch ................... 46
3.2.3 POWER Hypervisor and virtual I/O. .......... ......... ...52
3.3 Micro-Partitioning introduction.............................. 54
3.3.1  Shared processor partitions  ...........................  55
3.3.2 Shared pool overview ..................................59
3.3.3 Capacity on Demand .................................... 62
3.3.4 Dynamic processor deallocation and processor sparing.......... 63
3.3.5 Dynamic partitioning ................................... 64
3.3.6  Limitations and considerations ................... ..........71
3.4 Virtual Ethernet introduction ................ ................73
3.4.1  Virtual LAN  ...................... .................  73
3.4.2 Virtual Ethernet connections .......... . ......... . . . . . . . . 78
3.4.3  Benefits of virtual Ethernet .............................  79
3.4.4 Dynamic partitioning for Virtual Ethernet devices ............... 80
3.4.5  Limitations and considerations ................. ..........  80
3.5 Shared Ethernet Adapter..................................... 80
3.5.1  Connecting a virtual Ethernet to external networks.............. 81
3.5.2 Using Link Aggregation (EtherChannel) to external networks .....84
3.5.3 Limitations and considerations ................ .......... 86
3.6 Virtual SCSI introduction .................................... 87
3.6.1  Partition access to virtual SCSI devices ........... ........ . 88
3.6.2  Limitations and considerations ................. ......... 92
3.7  Partition Load Manager introduction .........................  93
3.7.1 Memory management .................................. 97
3.7.2 Processor management ................................ 97
3.7.3 Limitations and considerations ................ .......... 98
Chapter 4. Virtual I/O Server configuration. ........................ 99
4.1 Getting started ............................................ 100
4.1.1 Command line interface .............................. 100
4.1.2  Hardware resources managed ............................ 103
4.1.3 Software packaging and support. ......................  104
4.1.4  Virtual I/O  Server software installation ........... .... . . .. . 104
4.2 Basic configuration ....................................... 108
4.2.1 Ethernet adapter sharing................................ 109
4.2.2 Virtual SCSI disk ..................................... 114
4.2.3  Limitations and considerations  ............................ 120
4.3 Advanced configuration .................................... 121
4.3.1  Providing higher availability for Virtual I/O  Server. ....... .... 121
4.4  Virtual I/O  Server maintenance and monitoring  ................... 129
4.5 Security issues ...........................................130
4.6  Interaction with AIX partitions .......... ....... .............. 130
4.6.1  Virtual SCSI resources ................. ................. 131
4.6.2 Virtual Ethernet resources............................  132
4.7 Interaction with Linux partitions ................................ 134
4.7.1 Virtual SCSI resources ...............................  134
4.7.2 Virtual Ethernet resources ............................  135
4.7.3 Linux distributions .................................... 135
4.8  Interaction with i5/OS partitions......................... ....  136
Chapter 5. AIX and Virtual I/O Server configuration scenarios ....... 137
5.1 Scenario 1 introduction .................................. 138
5.2 Scenario 2 introduction .................................... 138
5.3  Scenario 1: Basic configuration......................... ....  140
5.3.1  Creating the Virtual I/O  Server partition  ................. .. .140
5.3.2  Creating client partitions ......................... ....  154
5.3.3  Virtual I/O  Server software installation  ............... .. ... 157
5.3.4  Defining resources for the Virtual I/O  Server ................. 161
5.3.5 Defining Virtual I/O resources for the clients. ................ 166
5.3.6  Virtual I/O  Server configuration with mirroring  ............... 170
5.3.7 Client partition installation ............................. 179
5.4 Scenario 2: Enhanced availability virtualization ............. .... 187
5.4.1 Installation and configuration of a second Virtual I/O Server ..... 187
5.4.2 Creating Link Aggregation on the Virtual I/O Server............ 188
5.4.3 Creating Shared Ethernet Adapters using Link Aggregation .... 190
5.4.4  Creating Link Aggregation in client partitions ............ ... . 191
5.4.5 Adding a new disk to a running client ................... ... 195
5.4.6  Mirroring rootvg on the client partition. ................... ... 198
Chapter 6. System management ............................... 201
6.1  Backup and restore of the Virtual I/O  Server ...................... 202
6.1.1  Backing up the Virtual I/O  Server .......................... 202
6.1.2 Backing up on tape .................................... 202
6.1.3 Backing up on a file system ................ ...........203
6.2  Restoring the Virtual I/O  Server ............... ...... ...... .203
6.2.1  Restoring from  tape.......................... ......... 203
6.2.2  Restoring from  file system...............................204
6.3  Rebuilding the Virtual I/O  Server..................... .........  211
6.3.1 Rebuild the SCSI configuration ......................... 212
6.3.2 Rebuild network configuration............................213
6.4 Basic Partition Load Manager configuration .................. .. .216
6.4.1 Installation and configuration of the Partition Load Manager ..... 216



Library of Congress subject headings for this publication: Virtual computer systems