Virtualization Directions

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Virtualization Directions
John SheaVMware Team Systems Management Group -
CITES
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Virtualization

• What is virtualization?
• Virtualization at CITES
• Future directions
• Questions?

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What is virtualization?

• Run multiple OS instances on a single physical
  server
• Different types
• OS level
• Full virtualization

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CITES Environment
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Services and Systems

• 543 services
• Critical services
• Test/dev/prod/warm-spare machine
• Other systems
• Some combination of above

http//www.cites.illinois.edu/services
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Physical Systems

• SPARC
• 200 Solaris SPARC Systems
• Some older power inefficient machines
• x86 Environment
• 50 Windows
• 90 RHEL

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Problems

• Underutilization
• Most servers less than 20 CPU
• Server Sprawl
• One application/server
• Deployment time

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Physical Server Costs

• Purchase ( Thousands)
• Power/Cooling
• Power (180 W) 78/year (0.05/KWh)
• Cooling cost gt Power cost
• Data center space ()
• Hardware support contracts

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CITES Virtualization

• Solaris Zones
• OS-level virtualization
• VMware
• Bare metal hypervisor
• Each OS instance is virtualized

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Virtual Infrastructure

• Solaris Zones
• Deployed in Test/Dev/Production
• VMware
• Ongoing project
• Test/dev VMs and low priority production systems

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Solaris Zones

• Isolated user environments share kernel
• Whole root zones
• Each zone has its own copy of system files
• Sparse zones
• Share system files with the global zone

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Zones Servers

• One development server
• Sun V440 (4 1.04 GHz processors, 8 GB RAM, 144 GB
  disk)
• 23 zones

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Zones Servers

• Two production servers
• Sun V490 (4 1.05 GHz processors, 16 GB RAM, 146
  GB disk)
• 18 zones

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Limitations

• Some packages must be installed in the global
  zone
• Would use sparse zones in the future
• Zone can not be NFS server

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VMware

• VMware Virtual Infrastructure 3 (VI3)
• Four ESX Servers
• Forty VMs
• Growing!

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VMware Servers

• HP ProLiant DL380
• Dual Quad-Core (2.0 GHz Intel)
• 32 GB RAM
• Sun x6250 Blade
• Dual quad-core (3.0 GHz Intel)
• 64 GB RAM

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VMware Storage

• SAN
• Two tiers of storage
• Reduce costs
• Tier II (Sun StorageTek)
• Tier III (NexSan)

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VMware Network

• Six physical GigE ports/server
• VLAN Trunking for VMs
• Reduce the network ports on servers and switches
• Increase redundancy

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VirtualCenter Demo
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VI3 Features

• VMotion
• Storage VMotion
• Distributed Resource Scheduler (DRS)
• High availability (HA)
• Remote command-line and perl toolkit

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CLI and Scripting

• Remote command-line interface
• VI perl toolkit

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VMware Tools

• Manual installation and configuration
• Tools are essential
• Network driver
• 10-fold performance enhancement
• Memory Ballooning Driver
• Swap in hypervisor rather than in VM

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Limitations

• Linux support
• VI client only runs on Windows
• Timekeeping
• Tools packaging

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Physical Server Costs

• Purchase ( Thousands)
• Power/Cooling
• Power (180 W) 78/year (0.05/KWh)
• Cooling cost gt Power cost
• Data center space ()
• Hardware support contracts

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Physical Server Costs
Virtual

• Purchase ( Thousands)
• Power/Cooling
• Power (180 W) 78/year (0.05/KWh)
• Cooling cost gt Power cost
• Data center space ()
• Hardware support contracts

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Virtual Server Costs

• Most costs amortized over VMs
• Additional cost of VMware licenses

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Virtual Server Costs

• Production VM
• 1 GHz CPU
• 2 GB RAM
• 50 GB Disk
• 250/year

• Test/Dev VM
• 250 MHZ
• 500 MB
• 50 GB Disk
• 150/year

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Future

• Server Consolidation
• Greater than 80 virtualized (3 years)
• New servers virtualized by default
• VMware or zones
• Faster deployment
• Disaster recovery

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Campus Virtualization

• Early stages
• Virtual hosting in CITES data center
• Partners
• College of Education
• ATLAS

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Benefits

• Transparent redundancy
• Fast provisioning
• Efficient use of data center space
• Low barrier to entry

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Questions?