Virtualization What the Dramatic Changes in Server Management Mean to Us

What the Dramatic Changes in Server Management Mean to Us

This is a Traditional Server Room

This is a Traditional Server Room

This is a Virtualized Server Room

This is a Virtualized Server Room

On average, 10% of server processor is utilized per server*. *per IDC

Virtualization allows for maximized use and dynamic allocation of processing power

Energy Use and Server Budget are Reduced

Server Recovery and Backup is as Easy as…

Drag n’ Drop Backup

Server Templates

Mixture of Operating Systems on One Server

24/7 Availability

Instant Testing Environments

How It Works (1) Server virtualization uses a Hypervisor - a streamlined Operating System with connectivity, virtualization and management features. Intel and AMD include virtualization support on specific chipsets; this is required for some server virtualization products. Peter Campbell, Techcafeteria August, 2008

Server virtualization uses a Hypervisor - a streamlined Operating System with connectivity, virtualization and management features.

Intel and AMD include virtualization support on specific chipsets; this is required for some server virtualization products.

How It Works (2) Virtual machines (VMs) are loaded into memory by the Hypervisor. They emulate standalone servers. Users connect to VMs, but VMs can be copied and moved without interruption. Load Balancing and Fault Tolerance can be used to mirror VMs and insure business continuity.

Virtual machines (VMs) are loaded into memory by the Hypervisor. They emulate standalone servers.

Users connect to VMs, but VMs can be copied and moved without interruption.

Load Balancing and Fault Tolerance can be used to mirror VMs and insure business continuity.

Hypervisor Dynamically Adjusts VM Hosts to Best Use Resources

Load Balancing and Automatic Failover Insures Stability

Reduced Costs, Energy Efficiency, Manageability

This is all still pretty new - assumptions about proper configuration and server requirements still vary. Virtualized databases can be impacted by conflicts between virtualization and caching. There is some debate about whether domain controllers should be virtualized. Smaller vendors might resist supporting virtualized applications; large vendors won’t. Potential Issues Peter Campbell, Techcafeteria August, 2008

This is all still pretty new - assumptions about proper configuration and server requirements still vary.

Virtualized databases can be impacted by conflicts between virtualization and caching.

There is some debate about whether domain controllers should be virtualized.

Smaller vendors might resist supporting virtualized applications; large vendors won’t.

Products Commercial VMWare (Server, Desktop, Fusion) Citrix Xen Server and Desktop Microsoft Virtual Server, WinServer 2008 Virtual Iron Open Source Xen (FOSS version of Citrix product) KVM VirtualBox Peter Campbell, Techcafeteria August, 2008

Commercial

VMWare (Server, Desktop, Fusion)

Citrix Xen Server and Desktop

Microsoft Virtual Server, WinServer 2008

Virtual Iron

Open Source

Xen (FOSS version of Citrix product)

KVM

VirtualBox

Questions Peter Campbell, Techcafeteria August, 2008

Virtualization Scenarios Matthew Eshleman Director of Professional Network Services Community IT Innovators [email_address] www.citidc.com

Matthew Eshleman

Director of Professional Network Services

Community IT Innovators

[email_address]

www.citidc.com

Tools & Terminology Virtualization Hypervisor Physical to Virtual Conversion Software Storage Area Network (SAN) iSCSI or Fiber Channel SAN Connection Storage Management (LUN) Backup & Disaster Recovery RPO & RTO

Virtualization Hypervisor

Physical to Virtual Conversion Software

Storage Area Network (SAN)

iSCSI or Fiber Channel SAN Connection

Storage Management (LUN)

Backup & Disaster Recovery RPO & RTO

Backup & Disaster Recovery Backup What are the RPO and RTO requirements? Use existing backup to tape or disk Online backup services Backup appliances Disaster Recovery Part of business continuity Manual or Automated systems

Backup

What are the RPO and RTO requirements?

Use existing backup to tape or disk

Online backup services

Backup appliances

Disaster Recovery

Part of business continuity

Manual or Automated systems

Small Office Virtualization Single SBS Server Server out of warranty & out of space Additional services required Accounting server Terminal server Intranet etc

Single SBS Server

Server out of warranty & out of space

Additional services required

Accounting server

Terminal server

Intranet

etc

Small Office Virtualization Benefits Preserve existing server Expand HW capacity Minimal user disruption Lower HW Costs Adds flexibility Risks Adds complexity Need to adjust backup plan Single point of failure

Benefits

Preserve existing server

Expand HW capacity

Minimal user disruption

Lower HW Costs

Adds flexibility

Risks

Adds complexity

Need to adjust backup plan

Single point of failure

Mid Sized Consolidation 2-6 existing physical servers Increasing application requirements Increasing availability requirements Maxing out electrical system Maxing out cooling system

2-6 existing physical servers

Increasing application requirements

Increasing availability requirements

Maxing out electrical system

Maxing out cooling system

Mid Sized Consolidation Benefits Lowered Hardware Costs Reduced Warranty Expense Reduced Energy Consumption Improved HW utilization Risks Solution needs to be appropriately designed Consider backup & disaster recovery requirements Adds complexity Server sprawl

Benefits

Lowered Hardware Costs

Reduced Warranty Expense

Reduced Energy Consumption

Improved HW utilization

Risks

Solution needs to be appropriately designed

Consider backup & disaster recovery requirements

Adds complexity

Server sprawl

Enterprise Virtualization Appropriate starting at 4-8 physical servers High availability Highly flexible and expandable Dedicated IT staff Significant investment

Appropriate starting at 4-8 physical servers

High availability

Highly flexible and expandable

Dedicated IT staff

Significant investment

Enterprise Virtualization Benefits Lowered Hardware Costs Reduced Warranty Expense Reduced Energy Consumption Improved HW utilization High availability Flexibility Risks Software costs Complexity Management

Benefits

Lowered Hardware Costs

Reduced Warranty Expense

Reduced Energy Consumption

Improved HW utilization

High availability

Flexibility

Risks

Software costs

Complexity

Management

Virtualization Conclusions Virtualization can be used in most cases Requires appropriate planning Provides additional flexibility and cost savings Relatively low barrier to entry

Virtualization can be used in most cases

Requires appropriate planning

Provides additional flexibility and cost savings

Relatively low barrier to entry

QUESTIONS?

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