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Demystifying Private Cloud- Practical Approaches
Proprietary and ConfidentialNovember 25, 2011 - 1 -
Name of the Presenter: Amit Pathak Date: 26 Nov 2011
- Practical Approaches
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Agenda
• Private Cloud– Business Drivers– Unique Challenges
• 5 Step Plan – Practical Approaches
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– Practical Approaches• Considerations for
– Automation– Security– Monitoring
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• Reduce IT Cost– Reduce Capital Expenses by server
and datacenter consolidation– Reduce operational cost by
standardization and automation• Increase IT Efficiency
– Improve service levels by
Business Drivers
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– Improve service levels by implementing Service Automation
– Enhance Reuse– Improve Business Continuity
• Increase Business Agility– Faster time to market– Increase responsiveness to business
changes
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Unique Challenges
Data
Control
Compliance
2
3
4
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CloudSecurity Management
1 5
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Security – Continues To Be A Major Issue
Q: Rate the challenges/issues of the 'cloud'/on-demand model
81.0%
82.9%
83.3%
87.5%
On-demand paym’t model may cost more
Performance
Availability
Security
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Source: IDC Enterprise Panel, 3Q09, n = 263, September 2009
(Scale: 1 = Not at all concerned 5 = Very concerned)
76.0%
76.8%
79.8%
80.2%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90%
Not enough ability to customize
Hard to integrate with in-house IT
Bringing back in-house may be difficult
Lack of interoperability standards
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General Security Challenges
• Trusting vendor’s security model• Inability to respond to audit findings• Obtaining support for investigations• Indirect administrator accountability• Data loss prevention
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•• End point security• Loss of physical control
Concerns of Application Owners
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Private Cloud Is More Than a Set of VMs
Virtual Data Center
Cloud Data Center
“It’s not as easy as setting up a VMware environment and thinking
Agi
lity
/ Sel
f-S
ervi
ce
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Server Consolidation
and thinking you’re done…
Virtualization is a good step on
the way, but isn’t the whole enchilada.” –
James StatenAgility
Agi
lity
/ Sel
f
Automation, Orchestration, Scalability
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Data Center
Trust
Control
Reliable
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Secure
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Cloud
Dynamic
Efficient
On-demand
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CloudComputing
Flexible
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Private Cloud
Trusted
Control
Reliable
Dynamic
Efficient
On-demand
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Secure
CloudComputing
Flexible
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5 Step Approach
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Comprehensive IT portfolio analysis leading to clea r recommendations on cloud-readiness of applications, infrastructure and other assets;
Application & Process Re-engineering to enable cali brated transition to cloud
• Incident & problem management - Processes to identify,
Step 1 - IT Portfolio Assessment
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• Incident & problem management - Processes to identify, isolate and resolve problems and quickly restore service
• Capacity & availability management - Effectively forecast, allocate, manage & monitor infrastructure capacity to meet changing business needs
• Configuration management - Configure virtual environment and manage configuration changes on an ongoing basis
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• Change management - Manage changes within virtual infrastructure environment
• Security management - Processes to effectively manage & monitor the security of virtual infrastructure
• Operations management – Operationalize infrastructure
Step 1 - IT Portfolio Assessment
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• Consumption management - Effective and efficient consumption or utilization of virtual resources
• Provisioning Resources - Provision virtual resources in a systematic, timely and adequate manner to meet infrastructure needs
Output ���� Baseline assessment of overall IT Portfolio
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Step 2 – Initial Adoption
• Capacity Utilization
• Conversion/Transformation• From expensive silos to commodity
general purpose shared cloud architecture
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architecture � Servers running in silos� Underutilized� Non-standardized � High Maintenance Costs� Poor Performance
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Step 2 – Initial Adoption
Apps
App Infra
Sys
tem
M
anag
emen
t
Apps
App Infra
Clo
ud
Man
agem
ent
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Legacy Stack Cloud Stack
X86 Servers
App Infra
Sys
tem
M
anag
emen
tX86 Servers
Clo
ud
Man
agem
ent
Cloud
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Step 3 – Plan, Design & Expand
• Plan & Design Infrastructure
• Management NetworkStorage
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• Plan & Design ITSM
• Process Mapping Compute
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Step 3 – Design Considerations
Capacity• VMs need large storage. Storage
arrays to give large scale and that can run into tens of TB
• Storage need to support large LUNs. E.g. VMware only allows a relatively small number of LUNs per server -
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small number of LUNs per server -256. Need to have support for large LUNs
• The current limit for a single VMFS LUN is 64 TB
• And now within vSphere 5 we are talking about LUNs that can go larger than 2 TB
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Step 3 – Design Considerations
Performance• Virtual environments
generate much more random I/O workload. Need storage that can support that random I/O performance
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• Ability to achieve high volumes of I/O. Cloning or copying VMs or moving them around within an environment, make sure that array can support high performance.
Source: VMware
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Step 3 – Design Considerations
Resiliency• We intend to consolidate
large number of VMs on a large number of physical servers and we need these arrays to be highly available.
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available.
• We need good uptime, and we need make sure we can run them 24 hours a day throughout the year.
Source: VMware
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Step 4 – Manage & Standardize
Provisioning Monitoring
Self Service Portal
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Automation Chargeback
Self Service Portal
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Step 4 – Manage & Standardize
• Purpose-built software to manage private cloud– Applications & workload– Resources
• Automation– Matches IT demand with supply
Cloud Management
Demand
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– Matches IT demand with supply • Standardization
– Resource sharing without tradeoffs
– Policy-driven, governance, compliance & security
– Open standards
VMs Servers Data Center
SystemsStorage Network
Supply
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Step 4 – Manage & Standardize
Health Check Provisioning
Security Management
Configuration Management
Management Layer
Workload
Alerts/Events
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SLA Security
Admin Dashboard
Chargeback
Governance
User Management
Reports
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Step 4 – Manage & Standardize
Monitoring– Efficient Scalability– Massive Scale – Cost effectiveness– Monitoring QoS
• Multi-tenancy environment• Minimize resource contention
Cloud monitoring –Fundamentally new architecture
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• Minimize resource contention between monitoring tasks
– Continuous violation detection
• Dynamically add/remove servers
based on performance
Fundamentally new architecture
Short-term burst Persistent violation
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Step 5 – Optimize
• Optimize provisioning
• Optimize utilization
• Ability to understand trends
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•
• Predict bottlenecks & future needs
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Summary
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Source: VMware
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Summary
• Focus on customer requirement. Include customer in the process
• Start with pilot; expand over the period of time
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• Standardize your IT processes, policies & procedures
• SLA driven design considerations
• Optimization – a process at each level