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 Computer Technology Training 2Strata IT Chapter 16 - Green Networking

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 Computer Technology Training 3Strata IT Chapter 16 - Green Networking

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 Computer Technology Training 4Strata IT Chapter 16 - Green Networking

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 Computer Technology Training 5Strata IT Chapter 16 - Green Networking

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 6

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 Computer Technology Training 7Strata IT Chapter 16 - Green Networking

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.power supply unit G3 –Mechanical Off –Power disconnected from motherboard –Only realtime clock runs Computer Technology Training 8Strata IT Chapter 16 - Green Networking

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 9Strata IT Chapter 16 - Green Networking

Green Workers Are 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 Computer Technology Training 10Strata IT Chapter 16 - Green Networking

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 Computer Technology Training 11Strata IT Chapter 16 - Green Networking

Examples from book SAAS –Web based Gmail –Office Applications Office 365 Google Docs IAAS –Data Storage –Data available from Internet connection Apple iCloud Dropbox 12Strata IT Chapter 16 - Green Networking

That’s All for Chapter 16