Server Virtualization: Server Virtualization: Planning And RolloutPlanning And Rollout

George Crump, Founder Storage Switzerland

Agenda

• What is Virtualization

• Understanding Complete Virtualization

• Analyze the Business Environment

• Inventory the Physical Environment

• Analyze the Physical Environment• Infrastructure

• Workload

Planning Flowchart Continued• Aggregate into combined environmental

Analysis

• Develop a Virtual Host Infrastructure

• Moving from Physical to Virtual

• Develop a Guest to Host Mapping

• Develop a Virtual Motion Mapping

• Design the Virtualized Environment

• Make the move

• Develop Ongoing Analysis and Mapping Strategies

What is Virtualization?

• Why Total Virtualization

• What is Total Virtualization• Servers

• Network

• Storage

• Infrastructure

Virtualization Rollout Challenges

• Most relate to lack of exposure and fast rollout initiatives

• Leads to these problems• Slow Applications

• Memory over subscription errors

• IP address challenges

• Incompatible Hardware

• Over Virtualization on a box

Business Assessment

• Process and Application Analysis• Multi-Tier application• Multi-Site application• Ownership

• Business Unit• Location• IT

• Availability• Zero Downtime?• Virtual Machine Motion• Virtualization HA• Maintenance Windows

• Viewed from application angle or host angle

Business Assessment Continued

• Budget• Knowing the Budget in Advance

• Building the Budget based on assessment

• Skills• What new skills need to be developed

• Software Supplier Relationships• Licensing

• Support of virtual environment

Motivation Assessment

• Why are you virtualizing?

• Server Consolidation

• Hardware flexibility

• “Green”

• Improved Efficiencies

• High Availability

• Disaster Recovery

Environment Assessment

Workload Assessment

• Basic

• One App per server

• Single Network Connection

• Low I/O

• Local or Single Storage point

• Advanced

• Clustered Systems

• Multi-Homed

• High I/O

File Services -- A Unique Case

• Better Served by a NAS

• Virtual NAS Heads

• Global File Systems

Workload Analysis

• What plays well together

• Trend over the course of time

• Processor Requirements

• Memory Requirements

• Cache

• Addressable Ram

• Security Requirements

• Storage Requirements

• IO Requirements

Developing A Workload Analysis Map

• Defines regions of compatibility and

incompatibility

• Weighting is based on

• Application Stability

• Availability Requirements

• Network IO

• Storage IO

• Processor Requirements

Develop A Virtual Host Infrastructure

• Determine the Host Population

• Budget

• Number of Virtual Candidates

• Number of remaining Physical

Storage Infrastructure Virtualization

• Access Protocol

• Fibre

• ISCSI

• NFS

• Storage Hardware

• Local Attached

• SAN

• NAS

Network Interface Selection

• Challenge with 1 GBE Cards

• 10 GBE

• 10 GBE cards with IOV

Infrastructure Virtualization

• Brings Virtualization capabilities to Bare

Metal Hardware

• Manages Network and Storage Connections

Server Virtualization Software Selection

• VMware

• ZEN

• Hyper-V

• Others

Server Host Hardware Understanding

• Components

• Memory

• Cache

• Compute

• I/O Capabilities

• Host Types

• Blades

• Dense U Servers

• High Compute Servers

Moving From Physical To Virtual• Allocating compute capacity

• Day to Day operations

• VMotion activity

• Developing a Virtual Guest to Host Mapping

• Develop a Virtual Movement Mapping

• Design the Virtual Environment

• Define the Timeline

• Preparing the Virtual Environment

• Preparing the Physical Environment

• Migrating your Physical Move

Providing Virtualization Benefits To The Remaining Physical Servers

• Leveraging Storage Virtualization

• Leveraging Infrastructure Virtualization

Thinking Virtual

• Understanding moveable workloads

• Compute Optimization

• Moving Workloads based on compute needs

• Moving from Physical to Virtual to Physical

• Storage Optimization

• High Availability