IBM Flex System Manager

Report
IBM PureSystems
SKiLLs – Webcast
2012
Jacob Fred
Channel Technical Sales Specialist
IBM Systems and Technology Group
Tel: +55 11 2322 7089
Mobile: +55 11 97597 9133
Tie Line 740 7089
E-mail: [email protected]
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
IBM PureFlex Systems
Gerenciamento
This document is for IBM and IBM Business Partner use only
xtw280t6
Abril 2012
© 2012 IBM Corporation
Agenda
 * PureFlex management overview *
 x86 compute node Integrated Management Module 2
 POWER compute node Flexible Service Processor
 IBM Flex System Chassis Management Module
 IBM Flex System Manager management appliance
 Diagnostic aids
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Requerimentos dos sistemas de gerenciamento de hoje
mundo
gasta Power
com and
servidores,
e resfriamento,
WW O
Spending
on Servers,
Cooling, andenergia
Management/Administration
e administração e gerenciamento
# Installed Servers
Customer Spending ($M)
35,000,000
$200,000
Power & Cooling
$175,000
$150,000
30,000,000
Mgmt & Administration
New Server Spending
25,000,000
$125,000
New
20,000,000
$100,000
15,000,000
thinking!
$75,000
10,000,000
$50,000
5,000,000
$25,000

0
$0
Servers
'96 '97 '98 '99 '00 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12
Vicious Cycle
Virtuous Cycle
 Incomplete, Untrusted Data
 Designed For Data – 89% of CEOs want
better insight
 Sprawling Physical Resources
 Inflexible Configurations
 And Flat Budgets
 Tuned for the Task – Total Cost of
Workload can be Reduced by 55%
 Managed as a Cloud – 60% of CIOs plan
to use cloud technologies
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
The time has come for a new breed of systems
Expert integrated systems:
Systems with integrated
expertise that combine the
flexibility of a general purpose
system, the elasticity of cloud and
the simplicity of an appliance
Fundamentally changing the
experience and economics of IT
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
IBM’s integration strategy
Integrate IBM
Enable Resilience & Simplicity
 Drive tighter integration with Tivoli,
Storage, and Research groups
 Extensible
 Highly Available
 Integrated management for Workload
Optimized Systems
 Scalable, Hierarchical
 Headless, embeddable
 Appliance ready
Lead in Virtualization
Management
 Virtualization Lifecycle
Management
Platform and Virtualization
Management
Integration
Manage Storage,
Network & Security
 Storage, I/O and Network
virtualization
 Enable compliance and
cloud security offerings
 Capture and deploy workloads with VMControl
Expand Ecosystem
and Usage
Optimize
Energy Usage
 Reduce operational costs
with smarter energy
monitoring & management
 Deliver Web services integration
 Extend IHV/ISV coverage
 OEM and branding services
 Manage non-IBM resources
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
PureFlex System - Gerenciamento

Conjunto completo de gerenciamento de dispositivos e interfaces de hardware
– Compute node management processors
• IMM2 for x86 compute nodes
• FSP-1 for POWER compute nodes
– IBM Flex System Chassis Management Module
• Ocupa uma ou duas baias de gerenciamento na parte traseira do chassis
• Segundo pode ser instalado para redundância
– Switch modules e power supplies
• I2C & internal management interfaces

IBM Flex System Manager management appliance
– Dispositivo de gerenciamento altamente integrado
– Completo controle de recursos
• Gerenciamento de Virtualização
• Alocação e controle de recursos
• Controle de Rede e Storage
– Implementação e gerenciamento de ‘On demand’
– Maximize a utilização para reduzir custos
– Ponto único de gerenciamento
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Agenda






PureFlex management overview
* x86 compute node Integrated Management Module 2 (IMM2) *
POWER compute node Flexible Service Processor
IBM Flex System Chassis Management Module
IBM Flex System Manager
Diagnostic Aids
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
IMM2 overview
 Segunda geração Integrated Management Module – hardware e firmware
completamente novo
 Controlador de gerenciamento baseado no Renesas SH7757
(SH4A Architecture) com controlador de vídeo integrado
 Rápido, mais recursos de soluções de gerenciamento de sistemas
 Solução de baixo custo sobre o original IMM
 Gerenciamento building block em toda nova linha do portifólio de sistemas
 Uma imagem do software IMM2 para todos os servidores IMM2
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
IMM2 hardware overview



576 MHz SH-4A 32-bit RISC CPU
Dual 10/100/1000 MACS
G200eR2 Video controller
–






Super I/O
2 USB 2.0 ports
PCIe 2.1 bridge with 2 devices (video
controller and SH-4A)
Encryption Hardware
Integrated PECI 3.0 support
Industry standard management
interfaces
–
–
–

DVC-4 and AAVICA-2 digital video
compression engines
WS-MAN
CIM-XML
IPMI 2.0
Integrated OOB Management
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Comparação de funções famílias
BladeCtr
Blades
High
Value
Flex
System
Nodes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
BlingBling / Pickford
No
No
Yes
No
N/A
Yes
N/A
Planar LEDs
No
Yes
Yes
Yes
Yes
Yes
Yes
Text Based Logs
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Power Management - xSEC
No
No
Yes
Yes
Yes
Yes
Yes
Remote Presence
No
Option
Option
Option
Yes
Yes
Yes
Web, ws-man, SNMP, CLI
No
Yes
Yes
Yes
Yes
Yes
Yes
IMM Real Time Clock
No
No
Yes
Yes
Yes
Yes
Yes
LDAP Authentication
No
Yes
Yes
Yes
N/A
Yes
Yes
Embedded pbDSA
No
Yes
Yes
Yes
Yes
Yes
Yes
IMM TPM
No
Yes
Yes
Yes
Yes
Yes
Yes
Dedicated Systems
Management network
No
Option
Option
Option
N/A
Yes
Yes
Entry
Value
General
Business
Business
Critical
iDataplex
IPMI 2.0
Yes
Yes
Yes
CIM-XML
Yes
Yes
PECI (thermal monitoring)
Yes
Front Panel LEDs
Feature/Function
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
New features in IMM2

Melhorias de hardware
• 576 Faster CPU & Memory
• Faster Ethernet over USB

Melhorias funcionais
•
•
•
•
•
•

Melhorias na interface e acesso
•
•
•
•

Interface de gerenciamento ethernet Gigabit
Aperfeiçoado System Power-On & Boot Time
Opções de upgrade de chave de licença do IMM2 Firmware
Não requer reset para alterações nas configurações do IMM2
Simplificado Update/Flashing mechanism
Suporte para recurso de upgrades On Demand
Tudo como Web Interface (mais intuitivo)
Suporte Active-X client para Remote Presence
Incrementado Remote Video Resolution / Color Depth
Atende requerimentos CI-162 de acessibilidade para pessoas com necessidades especiais
Melhorias em monitoração e relatórios
•
•
•
•
•
Informações mais detalhadas para detecção de erros, eventos e isolamento de falhas (UEFI)
Logs de auditoria e eventos separados
“Trusted” IMM com melhorias de segurança significativa
Alertas adicionais do Syslog provê mecanismos alternativos de envio de emails de TRAPs SNMP
First Failure Data Capture – Um botão pela interface web coleta e faz download de dados
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Comparação de Features de Hardware
Feature/Function
IMM
IMM2
Comments
400Mhz / 400 DMipS
576MHz / 1036DMiPS
2.5x Performance Increase
DDR2 – 800
128M
DDR3 – 1066
256M
+33% Memory Bandwidth
uEFI -16M
IMM - 1M
uEFI 16M
IMM - 2M
512M SLC Raw
2G pSLC eMMC
Offload wear leveling, block mgmt
[email protected]
[email protected]
[email protected]
[email protected]
IMM2 RP: up to 23 bpp
IMM RP: up to 15 bpp
Max uEFI CRTM 256K
No IMM CRTM support
No IMM TPM
Max uEFI CRTM 1M
Max IMM CRTM 256K
IMM2 TPM on I2C
No
Yes
Enables uEFI/IMM2 parallel booting
1 USB 1.1 slave port
1 USB 2.0 slave port
2x USB 2.0 slave ports or
1 Host or Slave
40x I/F speed for Eth over USB
IMM2: USB hub with 6 devices
10/100 Mb
No MAC filtering
10/10/1000 Mb
Multicast/Broadcast Filtering
uEFI Flash at power off
No
Yes
All outband flashing of uEFI is only
supported when system is on with
IMM(v1)
HW Encryption Engine
No
Yes
Extensive FW involvement using
IMM
CPU - Freq/Performance
RAM
ROM (uEFI/IMM)
NAND
Max Video Resolution
(4:3/16:9)
Security (uEFI/IMM)
PCIe to IMM Interface
USB
Ethernet
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Agenda






PureFlex management overview
x86 compute node Integrated Management Module 2
* POWER compute node Flexible Service Processor *
IBM Flex System Chassis Management Module
IBM Flex System Manager
Diagnostic Aids
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
POWER compute node Flexible Service Processor





Monitora o status de
energia dos principais
componentes
Gerencia o reset dos
principais componentes
Gerencia LEDs de diag.
VPD tables
I2C communication
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
TPMD - Thermal Power Management Device
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Agenda






PureFlex management overview
x86 compute node Integrated Management Module 2
POWER compute node Flexible Service Processor
* IBM Flex System Chassis Management Module *
IBM Flex System Manager
Diagnostic Aids
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Chassis Management Module hardware overview
 Renesas SH7757 576Mhz processor
 Crypto Security Offload Engine for
SSL/IPSEC bulk encryption
 24 port 1Gb Ethernet L2 switch (BMC
53724) with associated PHYs and
SERDES interfaces
–
–
–
–
–
1 external RJ-45 port
2 CMM internal RMII ports,
14 for compute nodes
4 for I/O devices
1 for redundant CMM
 I2C buses used to access local CMM
and chassis components.
 1 USB port
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Chassis Management Module – Componentes Internos







512MB of DDR3 ECC SDRAM
1GB of NAND Flash for firmware images
8MB NOR flash used for primary and backup uBoot and kernel images
8MB NOR flash for non-volatile configuration data
Minimum 32KB FRU Manufacturing VPD
Hardware TPM (Trusted Platform Module) chip
3 external LEDs (Power, Active, Fault)

Pinhole reset
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Chassis Management Module core functions
 24 portas ethernet layer 2 switch
– Gerenciamento (compute nodes e I/O devices) via ethernet
 Redundante CMM
 Gerenciamento por barramento I2C na inicialização – ethernet após
inicialização completa do switch
 Armazenamento local para atualização de firmware para CMM e I/O devices
 CMM não é usado para atualizar firmware do Node
 CMM pode ser usado para iniciar uma sessão remota IMM2 de Node x86
 LDAP server
 Protocolos seguros somente habilitado por default
– Acesso não-seguro ao menos especificamente habilitado
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Chassis management – Diagrama de rede
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Chassis management – Barramento I2C
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Agenda






PureFlex management overview
x86 compute node Integrated Management Module 2
POWER compute node Flexible Service Processor
IBM Flex System Chassis Management Module
* IBM Flex System Manager *
Diagnostic Aids
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
IBM Flex System Manager - Conectividade
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Flex System Manager - Funções
 Todas as funções básicas e avançadas pré-carregadas como um appliance
– Gerenciamento multi-chassis de fácil uso




Quick Start Wizards com discovery automatizado
Avançado console remoto entre múltiplos chassis
Gerenciamento centralizado de chaves de licençasFeature on Demand (FOD)
Gerenciamento integrado de Nodes x86, POWER, Storage e Network
– Inclui SDMC para nodes de POWER (live partition migration, VIOS redundate,
concurrent firmware updates)






Network fabric management (Port Profiles, VM Priority, Rate Limiting)
Virtualization Management incluindo resource pools
Segurança Robusta (Centralized User Management, Security Policy, Certs)
IntegradoLDAP e NTP servers para rede de gerenciamento privado
Funções de gerenciamento avançado através de add-ons pagos
Fácil integração com Systems Director, Tivoli e gerenciadores de terceiros
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Flex System Manager - Funções
Integrated
Management via Flex
System Manager
 Initial Set Up and Time to
Value
 Lifecycle Management
– Discovery / Inventory
– Monitoring and
Automation Plans
– Configuration
– Update
Power Systems
Management
CMM/IMM/IOM
 New Look and Feel with
Backward Compatibility
 Launch in Context
 Role based Security
This document is for IBM and IBM Business Partner use only
 Full Configuration
 VIOS
 Manipulate Power
compute nodes
© 2012 IBM Corporation
Flex System Manager virtualization management
Virtualization
Management





Lifecycle Management
(Create, edit, start/stop,
delete VMs) for all
Hypervisors
Image Management
(Capture, Edit, Deploy)
for PowerVM and KVM
Resource Pooling for
Storage, Network, and
Virtual Servers
(PowerVM and KVM)
Virtual Mobility and
policy driven placement
for PowerVM and KVM
workloads
Use existing VCenter
capabilities for VMWare
Network
Virtualization
 Discovery and Configuration
of Network Elements
This document is for IBM and IBM Business Partner use only
Storage
Virtualization
 Discovery and Configuration
of External Storage devices
 Includes auto discovery of
Storwize v7000
© 2012 IBM Corporation
VMControl



Criar, Editar e gerenciar virtual servers
Realocar virtual servers
Capture running virtual servers
–
–
Guest OS, rodando aplicações e definições do servidor
Uma imagem de “virtual appliance” é criada
•
•



Importar Open Virtualization Format (OVF) pacotes de virtual appliance
Criar, capturar e gerenciar workloads
Criar e gerenciar pool de sistemas de servidores
–
–
–
–
–

armazenado no repositório de imagens
pode ser implantado múltiplas vezes
Implementar virtual appliances em server system pools
Adicionar hosts
Adicionar storage space
Monitorar status de recursos
Monitorar status de workload
Criar e gerenciar storage system pools
–
–
–
Adicionar storage
Editar políticas do pool
Monitorar status storage resources
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Network Control










Consolidates network management functions
Simplifies network management tasks
Increases asset utilization through more efficient management
Supports higher bandwidth and converged fabrics
Provides for lifecycle management of network switches
Able to integrate vendor specific device management tools
Supports Converged Ethernet network devices (FCoCEE)
Ability to view systems according to VLAN
Network device topology collection and visualization (virtual and physical)
Supports
–
–
–
–
–
IBM PureFlex System supported switches and compute node NICs
Brocade® Converged Ethernet network switches (FCoCEE), Ethernet switches and routers
QLogic® converged network adapters
Cisco® FCoCEE and Ethernet switches
Juniper® Ethernet switches, routers and appliances
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Storage Control


Reconhecer dispositivos de Storage
Mostrar relações entre o Storage e os recursos dos servidores
– Topologia Física ou lógica




Configurar Storage físicos ou lógicos
Verificar status das controladoras e volumes
Gerar alerta de notificações
Integração com VM Control provê:
– Storage provisioning para criação de imagens de virtual servers, implantação e clone
– Gerenciamento do ciclo de vida do Storage system pool, provisioning, e ações de clone de
pool
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Flex System Manager – Configuração e Suporte
Configuration
Manager plug-ins
outside of using CMM
 Configure Chassis and
Internal Switch
Components
 Configuration of Compute
Nodes
Remote
Presence
 Login and take over
Compute node from
Administrators console
 Mount DVD drive remotely
Service &
Support Manager
w/Call Home
 Automatically detect and
log HW Problems
 Notify IBM directly of HW
Outages
 Perform Bare Metal Install
remotely
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Remote Presence – IMM2 via CMM
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Remote Presence – IMM2 via Flex System Manager
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Service and Support Manager
– Reporting: Opens service
requests for failed hardware
(power, x86) using embedded
Electronic Service Agent (ESA).
– Reporting: Collects, transmits,
and manages extended error data
including logs and diagnostics
– Inventory: Transmits hardware
and software inventory data to
IBM to assist in troubleshooting
using embedded Electronic
Service Agent (ESA).
All serviceable problems on
all systems managed by Flex System Manager
Does the Flex System Manager have the correct level
Of DSA for x86 compute nodes?
Turn Electronic Service Agent on / off for specific endpoints
Create test problem or test connection
• Assist in troubleshooting
• Feed IBM support portal
– Distinction between Monitoring
and Transmission
• Monitoring on by default
• Transmission needs additional
configuration
Is Electronic Service Agent configured?
– SSM Overview link available on
chassis manager or on plugins tab
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Agenda






PureFlex management overview
x86 compute node Integrated Management Module 2
POWER compute node Flexible Service Processor
IBM Flex System Chassis Management Module
IBM Flex System Manager
* Diagnostic Aids *
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Electronic Service Agent overview
 Erro é detectado no managed endpoint
 Erro é enviado para a aplicação ESA (Flex System Manager ou CMM)
– Erro é identificado como um dos três tipos:
• IBM Serviceable – um ticket de erro será gerado
• Customer Serviceable – um problema ocorreu onde o próprio cliente pode estar habilitado a
resolver
• Other / Warning – algo ocorreu, mas não é um problema que precise de ação imediata para
resolver
– Metodologia de identificação de erros
• Flex System Manager, SDMC, ISD, CMM – usa indicador ‘serviceability’ por firmware
• Outras aplicações de call home usa uma lista pre-identificada de eventos events
 Erro é reportado para a IBM eletronicamente
– Não requer intervenção humana
– Todas as informações relevantes são capturadas para a IBM iniciar o diagnóstico de
falha e tomar as apropriadas ações corretivas
 Cliente é instruído das ações corretivas baseado no tipo de falha
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Error event flow sem Flex System Manager
CMM controlled
Call Home
Key
HW/FW fault det.
Analyzed fault det.
SW detected fault
Log for information
IPMI
Events
IPMI
Events
DSA
Event Log
AUX Log
IMM
Event Log
CMM
Event Log
Switch
Event Log
DSA
Detected
Fault
UEFI
Detected
Fault
IMM
Detected
Event
CMM
Detected
Event
Switch
Detected
Fault
CMM
Switch
xITE OS
xITE FW
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Error event flow com Flex System Manager
S&SM
Event
View
Status
Manager
Event View
Chassis
Map Event
View
Director Present
Key
HW/FW fault det.
Analyzed fault det.
Director
Detected
Fault
IBM
Director
Event Hub
After S&SM
Receives
error and
runs DSA
SW detected fault
Log for information
S&SM
Controlled Call
Home
ISD 6.3
FSM 1.0
SNMP
Events
CIM Indicators
IPMI
Events
DSA
Event Log
Triggered
DSA
Detected
Fault
xITE OS
AUX Log
UEFI
Detected
Fault
xITE FW
SW Management
IPMI
Events
IMM
Event Log
CMM
Event Log
Switch
Event Log
IMM
Detected
Event
CMM
Detected
Event
Switch
Detected
Fault
Switch
This document is for IBM and IBM Business Partner use only
CMM
© 2012 IBM Corporation
Flex system LED indicators (1 of 4)
Component
LED name
Color
Owner
Flex Chassis Front
Panel
Power “IBM”
White
HW
Flex Chassis Front
Panel
Flex Chassis
Identify
Blue
IBM Flex System Chassis
Management Module
Flex Chassis Front
Panel
Check Log
Amber
IBM Flex System Chassis
Management Module
Flex Chassis Front
Panel
Fault
Amber
IBM Flex System Chassis
Management Module
Flex Chassis Rear
Panel
Flex Chassis
Identify
Blue
IBM Flex System Chassis
Management Module
Flex Chassis Rear
Panel
Check Log
Amber
IBM Flex System Chassis
Management Module
Flex Chassis Rear
Panel
Fault
Amber
IBM Flex System Chassis
Management Module
This document is for IBM and IBM Business Partner use only
Comment
© 2012 IBM Corporation
Flex system LED indicators (2 of 4)
Component
LED name
Color
Owner
Comment
Power Supplies
Input Power
Green
HW
AC good
Power Supplies
Output Power
Green
PS FW
DC good - Sleeping power
supply may blink
Power Supplies
Fault /
Identification
Amber
PS FW
Set to on, off, blink (future) –
HW can also turn the fault
on
Fan Packs
Power
Green
Fan FW
May blink for fans in slower
speed
Fan Packs
Fault /
Identification
Amber
Fan FW
Set to on, off, blink (future) Single LED for all fans in the
pack
Fan Control Module
Power
Green
HW
Fan Control Module
Fault /
Identification
Amber
IBM Flex System
Chassis
Management
Module
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Flex system LED indicators (3 of 4)
Component
LED name
Color
Owner
Comment
IBM Flex System
Chassis Management
Module
Power
Green
HW
also has Ethernet link and
activity
IBM Flex System
Chassis Management
Module
Active CME
Green
IBM Flex System
Chassis
Management
Module
IBM Flex System
Chassis Management
Module
Fault /
Identification
Amber
IBM Flex System
Chassis
Management
Module
IO Modules
Power
Green
IOM FW
Some say power some say
OK – logos should be
consistent - may have other
link/activity
IO Modules
Enclosure
Identify
Blue
IOM FW
Blue used for identify
IO Modules
Fault
Amber
IOM FW
Set to on, off, - no need to
ever blink
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Flex system LED indicators (4 of 4)
Component
LED name
Color
Owner
Comment
Compute Node
Power / Button
Green
MP
may have hot swap drives
with fault and activity
Compute Node
Enclosure
Identify
Blue
MP
Compute Node
Check Log
Amber
MP
Compute Node
Fault
Amber
MP
Flex System Manager
Power / Button
Green
MP
Flex System Manager
Enclosure
Identify
Blue
MP
Flex System Manager
Check Log
Amber
MP
Flex System Manager
Fault
Amber
MP
This document is for IBM and IBM Business Partner use only
no other buttons, Drives
have fault and activity LEDs
© 2012 IBM Corporation
Dúvidas?
Jacob Fred
[email protected]
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation
Obrigado!
This document is for IBM and IBM Business Partner use only
© 2012 IBM Corporation

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