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by Dinar Valeev, Breno Leitao, Rafael Folco, Thadeu Cascardo
IBM PowerKVM Configuration and Use
Front cover
Figures
Tables
Examples
Preface
Authors
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Notices
Trademarks
Chapter 1. Introduction
1.1 IBM Power Systems
1.1.1 POWER8 processors
1.1.2 IBM scale-out servers
1.1.3 Power virtualization
1.1.4 Simultaneous multithreading
1.1.5 Memory architecture
1.1.6 Microthreading
1.1.7 RAS features
1.2 Virtualization
1.2.1 PowerKVM hardware
1.2.2 PowerKVM versions
1.2.3 PowerKVM 2.1 considerations
1.2.4 Where to download PowerKVM
1.3 Software stack
1.3.1 QEMU
1.3.2 KVM
1.3.3 Open Power Abstraction Layer
1.3.4 Guest operating system
1.3.5 Libvirt software
1.3.6 Virsh interface
1.3.7 Intelligent Platform Management Interface
1.3.8 Petitboot
1.3.9 Kimchi
1.3.10 Slimline Open Firmware
1.3.11 Virtio drivers
1.3.12 RAS stack
1.4 Comparison of PowerVM and PowerKVM features
1.5 Terminology
Chapter 2. Host installation and configuration
2.1 Host installation
2.1.1 NetBoot installations
2.1.2 Automated installation
2.1.3 Reinstallation
2.2 System configuration
2.2.1 Console configuration
2.3 Firmware upgrade
2.3.1 Kimchi
2.3.2 update_flash
Chapter 3. Managing guests from a web interface
3.1 Kimchi
3.1.1 Accessing Kimchi
3.2 Storage pool
3.2.1 Local directory
3.2.2 NFS
3.2.3 iSCSI
3.2.4 Logical volume
3.3 Network
3.3.1 NAT network
3.3.2 Bridged network
3.4 Templates
3.4.1 Create a new template
3.5 Guests
3.5.1 Creating a new guest
3.5.2 Start and stop guests
3.6 Accessing a graphical interface
3.6.1 noVNC
3.6.2 VNC
Chapter 4. Managing guests from a CLI
4.1 virsh console
4.1.1 virsh vncdisplay
4.2 Managing storage pools
4.2.1 Create new storage pools
4.2.2 Query available storage pools
4.2.3 List available volumes
4.2.4 Create a new volume
4.2.5 Delete or wipe a volume
4.3 Managing guest networks
4.3.1 Query guest networks
4.3.2 Create guest network
4.4 Managing virtual machines
4.4.1 Create a new virtual machine
4.4.2 List virtual machines
4.4.3 Start or stop a virtual machine
4.4.4 Connect to a virtual machine
Chapter 5. Processor and memory virtualization
5.1 CPU virtualization
5.1.1 Types of virtualization
5.1.2 Hardware-assisted virtualization
5.2 CPU overcommitment
5.3 CPU compatibility mode
5.3.1 Simultaneous multithreading
5.3.2 Microthreading
5.3.3 Configuring NUMA
5.4 CPU pinning
5.5 CPU sharing
5.6 Memory
5.6.1 Memory allocation
5.6.2 Memory ballooning
5.6.3 Kernel SamePage Merging (KSM)
5.6.4 Huge pages
5.7 Time management
Chapter 6. I/O virtualization
6.1 Types of virtualization
6.1.1 PowerKVM supported devices
6.1.2 PCI I/O passthrough
6.2 Network virtualization
6.2.1 User mode networking
6.2.2 Network address translation networking
6.2.3 Bridged networking
6.2.4 Open vSwitch
6.3 Storage pools
6.3.1 Storage volume
6.3.2 Block device pools
6.3.3 File-backed pools
6.4 I/O passthrough
6.4.1 SCSI passthrough
6.4.2 USB passthrough
6.4.3 PCI passthrough to a virtual machine
6.4.4 I/O limits
6.5 Hot plug
6.5.1 Adding a new vSCSI adapter
Chapter 7. Advanced topics
7.1 Guest migration
7.1.1 Transports
7.1.2 Offline migration
7.1.3 Online migration
7.1.4 Live migration
7.2 Suspending and resuming
7.3 Cloud management
7.3.1 IBM PowerVC
7.3.2 IBM Cloud Manager with OpenStack
7.3.3 OpenStack controller services
Related publications
IBM Redbooks
Online resources
Help from IBM
Back cover
IBM System x Reference Architecture for Hadoop: IBM InfoSphere BigInsights Reference Architecture
Introduction
Business problem and business value
Reference architecture use
Requirements
InfoSphere BigInsights predefined configuration
InfoSphere BigInsights HBase predefined configuration
Deployment considerations
Customizing the predefined configurations
Predefined configuration bill of materials
References
The team who wrote this paper
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Stay connected to IBM Redbooks
Notices
Trademarks
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Prev
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Note: Before using this information and the product it supports, read the information in “Notices” on page xvii.
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Tables
Figures
1-1 12-core IBM POWER8 architecture 2
1-2 Front view of the Power S812L 3
1-3 Front view of the Power S822L 4
1-4 S821L and S822L rear view 4
1-5 Local and remote memory access in a NUMA architecture 6
1-6 IBM POWER8 core with microthreading enabled 7
1-7 Guests and hypervisor 8
1-8 QEMU monitor screen example 10
1-9 Virsh and libvirt architecture 12
1-10 Petitboot screen 13
1-11
Kimchi home panel 14
1-12 SLOF during VM boot 15
1-13 Virtio architecture for network stack 16
2-1 Petitboot menu 21
2-2 Petitboot system configuration 22
2-3 Language selection 22
2-4 Welcome to IBM PowerKVM 23
2-5 Select the target device to install PowerKVM 23
2-6 Root password 24
2-7 Time zone selection 24
2-8 NTP configuration 25
2-9 Date and time configuration 25
2-10 Configure network 26
2-11 Network device configuration 26
2-12 DNS configuration 27
2-13 Installation summary 27
2-14 Device confirmation 28
2-15 Installer progress bar 28
2-16 Reboot the system 29
2-17 PowerKVM is automatically loaded from installed device after reboot 29
2-18 Reinstall IBM PowerKVM 35
2-19 Configure-system tool 35
2-20 Reset password 36
2-21 Select network device 36
2-22 Network device configuration 37
2-23 Hypervisor configuration 37
2-24 Firmware upgrade by using Kimchi 38
3-1 Login panel 43
3-2 Storage tab 44
3-3 Local directory storage pool 45
3-4 Activating a new storage pool 46
3-5 NFS storage pool 47
3-6 iSCSI storage pool 48
3-7 iSCSI volumes list 49
3-8 Creating a template using an iSCSI volume 50
3-9 LVM storage pool 51
3-10 Network tab 52
3-11 Starting a network 52
3-12 Creating a new NAT network 53
3-13 Creating a bridged network 54
3-14 Template tab 55
3-15 Editing a template 56
3-16 Template editor 56
5-1 CPU overcommitment scenario 73
5-2 Example of a POWER8 core with 4 subcores and 2 threads each subcore 79
5-3 4 virtual machines running in a single core without microthreading enabled 79
5-4 4 virtual machines running in a single core with microthreading enabled 80
5-5 KSM mapping when VM uses the same page 87
5-6 Setting up the NTP servers on PowerKVM 90
6-1 Bridge architecture 94
6-2 File-backed pool 96
6-3 iSCSI-backed storage pool 96
6-4 NFS backed Storage Device 97
6-5 Fibre Channel-backed storage device 97
7-1 PowerVC interface for advanced virtualization management 112
7-2 Adding a new host to PowerVC 113
7-3 Hosts list on PowerVC 113
7-4 Image upload on PowerVC 114
7-5 Displaying images 114
7-6 Deploy an image on PowerVC 115
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