Powervm

微分区技术
Dedicated processor partition (LPar)
Micro-partitions Shared Processor Pool (6 CPUs) RedHat Linux AIX 5L V5.3 AIX 5L V6.1 Suse Linux i5/OS V5R3
微分区技术允许把一颗CPU分成10份, 每一个分区最少0.1颗CPU，以0.01的粒度增加
19 96 19 97 19 98 19 99 20 00 20 01 20 02 20 03 20 04 20 05 20 06 20 07 20 08 20 09 20 10
Source: IDC, Virtualization 2.0: The Next Phase in Customer Adoption, Doc #204904, Dec 2006 Source: IDC, Virtualization 2.0: The Next Phase in Customer Adoption, Doc #2049拟化技术介绍
陈运健 chenyunj@
内容简介
PowerVM概念 PowerVM关键技术 PowerVM高级特性
PowerVM概念
数据中心的现状？
Web Servers SSL Appliances Routers Switches Security & Directory Servers Application Servers Caching Appliances DNS Servers LAN Servers UI Data
a physical shared-processor pool that has 2.0 processing units is available. Partitions 1, 2, and 3 are activated in sequence: Partition 1 activated Min. = 1.0, max = 2.0, desired = 1.5 Allocated capacity entitlement: 1.5 Partition 2 activated Min. = 1.0, max = 2.0, desired = 1.0 Partition 2 does not start because the minimum capacity is not met. Partition 3 activated Min. = 0.1, max = 1.0, desired = 0.8 Allocated capacity entitlement: 0.5
1999
IBM announces LPAR on POWER
2004
IBM intro’s POWER Hypervisor for System p and System i
2007
2008
IBM announces PowerVM
IBM announces POWER6, the first UNIX servers with Live Partition Mobility
Desired: Size of partition at boot time Minimum: Partition won’t start if Minimum capacity not available DLPAR cannot exceed this capacity Maximum: Divided among the virtual processors within a shared processor pool Uncapped capacity cannot exceed number of virtual processors
Express* Maximum LPARs Management Virtual I/O Server Lx86 Shared Dedicated Capacity Multiple Shared Processor Pools Live Partition Mobility 1+2 / Server IVM Standard 10 / Core IVM, HMC Enterprise 10 / Core IVM, HMC
Business Data
Database Servers
Firewall Servers
File/Print Servers
File/Print Server Avg. util. 10% ? Email Server Avg. util. 10% ?
DNS Server Avg. util. 10% ?
AIX V5.2
Linux partitions Linux Kernels
Unassigned on demand resources
Hardware Management Console* (HMC)
Virtual Storage Virtual Network /Networks Power Hypervisor Processors
PowerVM关键技术
微分区(Micro-Partition)技术 虚拟I/O服务器(VIOS) 虚拟以太网 虚拟SCSI Integrated Virtual Ethernet IVM LX86 动态分区迁移(Live Partition Mobility) Workload Partition/Live Application Mobility
Service Processor
Memory Expansion slots Local devices and storage Networks and network storage
*Integrated Virtualization Manager (IVM) is disabled if HMC attached
什么是 PowerVM?
Workload Partitions Live Application Mobility Logical Partitioning
助您构建动态基础架构、降低成本和管理风险，并提升服务。
PowerVM 版本
Delivering industrial-strength virtualization for UNIX, i and Linux clients
August 2007
client quote source: Brakes India case study published at /software/success/cssdb.nsf/CS/STRD-76DHWE?OpenDocument&Site=eserverpseries&cty=en_us
降低费用 仅购买您所需 简化您的IT环境 较好的管理;专注于核心业务处理 快速地响应业务的调整和变化
File/Print Server Avg. util. 10% ? Email Server Avg. util. 10% ?
DNS Server Avg. util. 10% ?
Web Server Avg. util. 10% ? Application Server Avg. util. 20% ?
* Support servers: Power 520, Power 550
Power System虚拟化架构
Workload management and provisioning
Virtual I/O Server VEnet VSCSI IVM**
AIX V6 partitions
AIX V5.3 partitions AIX Kernels
10个微分区/激活处理器。最大 254个微分区
AIX 5L V5.3
AIX 6L V6.1
好处：大大提高了系统中处理器资源的利用率
CPU处理能力
2 CPUs
4 CPUs
1个CPU处理能力代表一颗激活的物理处理器 Desired Minimum Maximum – 最小0.1颗CPU/微分区 – 最小0.01颗CPU增加 支持Power5和Power6平台
Shared processor pools - subset of physical CPUs in a system Entitled capacity expressed in the form of number of 1% CPU units
(easy to do, even the HMC passwd is simple to guess abc123, first time was linked to US)***
DB Server App Server Web Server DNS Server
Firewall Avg. util. 10% ?
DB Server Avg. util. 10% ?
File/Print Email Firewall
IBM - 虚拟化技术的行业领导者
A 42 year tradition culminates with PowerVM
PowerVM Editions feature Micro-Partitioning Virtual I/O Server Micro-Partitioning Subsystems Integrated Virtualization Manager Live Partition Mobility Lx86 (formerly System p AVE)
Capped vs uncapped
Capped: Uncapped: 不允许超过其分配的CPU容量 允许超过其分配的CPU容量
Priority weighting to determine preference for spare cycles
Automatic Load Balancing
Example
战略高度——更好地保护客户的投资
动态架构
新锐洞察
绿色未来
智慧运作
Hardware and software that delivers industry-leading virtualization on IBM POWER processor-based processors for UNIX, Linux and i customers 其前身是APV (Advanced Power Virtualization)
Web Server Avg. util. 10% ? Application Server Avg. util. 20% ?
Firewall Avg. util. 10% ?
DB Server Avg. util. 10% ?
为什么IT成本逐年上升?
Spending (US$B) Spending (US$B)
1967
IBM develops hypervisor that would become VM on the mainframe
1973
IBM announces first machines to do physical partitioning
1987
IBM announces LPAR on the mainframe
“[PowerVM] ensures that we are making the best possible use of hardware resources across our entire environment.”
- T N Rangarajan, VP of IT, Brakes India
Installed Base (M Units)
$300 $250 $200 $150 $100 $50 $0
50
Power and cooling costs x8 Server mgmt and admin costs x4 New server spending
45 40 35 30 25 20 15 10 5 0
虚拟化技术可以帮您！
Business Data
提高资源使用率;
Web Servers SSL Appliances Routers Switches Firewall Servers Caching Appliances Security & Directory Servers Application Servers DNS Servers LAN Servers UI Data File/Print Servers Database Servers
Hypervisor
共享处理器逻辑分区 – 微分区
LPARs are defined to be dedicated or shared
Dedicated partitions use whole number of CPUs Shared partitions use whole or fractions of CPUs