Strata IT Training Chapter 16 Green Networking. Green Servers Power Management –Power off monitor...
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Transcript of Strata IT Training Chapter 16 Green Networking. Green Servers Power Management –Power off monitor...
Strata IT Training
Chapter 16
Green Networking
Green Servers• Power Management
– Power off monitor settings– Automatic server shutdown
policy
• Rack mounted servers– Each server box blots into a
rack
• Blade Servers– Each server is a separate
card in the housing
• Network Attached Storage (NAS)– Can replace file servers
• Use less power
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Virtualization• One physical computer
runs a number of independent server operating systems called virtual machines– Servers dedicated to a task
• Better utilization of hardware
• More power savings• Central management• Popular Products:
– VMWare ESX Server– Microsoft Hyper-V
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Traditional Server Rooms
• Special server room• Cool air under floor• Hot air vent in ceiling• Disadvantage
– Cold air mingles with hot air lessoning the impact of air conditiioning
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Hot Aisle, Cool Aisle
• Computers draw cool air in front and expel hot air in back (just like us)
• Computer face each other to draw in cool air from center.– That beats breathing
someone’s expelled air
• Configure BIOS to adjust speed of fan based on system temp
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User Computer Power Savings• Use LCD screens• Use SSD drives
– Save power
• Laptops save power– Users can work anywhere
• Fat clients vs Thin clients– Switch to thin-clients when
user does not need independent OS on their system
• Less power and heat
Thin clients accessing central server
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Energy Star Rating
• Devices tested by US Dept of Energy– Energy Star compliance rating– Look for Energy Star logo– Monitors
• Windows settings can control Energy Star device power settings.
• ACPI Power options on Motherboard and CPU
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ACPI Power Modes• G0 – Working• G1 – Sleeping
– S1 – S4
• G2 – Soft Power off– the power supply unit (PSU)
still supplies power, at a minimum, to the power button to allow return to S0.
• G3 –Mechanical Off– Power disconnected from
motherboard
– Only realtime clock runs
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Windows Power Saving
• Open Control Panel
• From Small Icon view, click Power Options
• Click Change when the computer sleeps
• Try other options to change power button or lid
Computer Technology Training
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Green WorkersAre not from Mars
• Work space outside of office – Work from home (coffee shop/etc)– Telecommuting– Bandwidth requirements– VOIP
• Sales
• BYOD– Bring device to work/school or where-ever– Major number of nodes on many networks
• BYOD creates strain on organizational networks
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Cloud Computing• Data and services handled
over Internet– IAAS - Infrastructure as a service
• Network configuration done in cloud
• Data storage
– PAAS - Platform as a service
• Program development
– SAAS - Software as a service• Run packages from the Internet
server
• May reduce or eliminate need for IT data center in Small Office Home Office (SOHO) Networks
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Examples from book• SAAS
– Web based Email• Gmail
– Office Applications• Office 365• Google Docs
• IAAS– Data Storage– Data available from
Internet connection• Apple iCloud• Dropbox
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That’s All for Chapter 16