GuestLec01 - Data Centers and Cloud Computing CS677 Guest...

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Data Centers and Cloud Computing CS677 Guest Lecture Tim Wood 1 Tuesday, April 19, 2011
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Tim Wood - UMass - CS 677 Data Centers • Large server and storage farms • 1000s of servers • Many TBs or PBs of data • Used by • Enterprises for server applications • Internet companies • Some of the biggest DCs are owned by Google, Facebook, etc • Used for • Data processing • Web sites • Business apps 2 2 Tuesday, April 19, 2011
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Tim Wood - UMass - CS 677 Traditional vs “Modern” • Data Center architecture and uses have been changing • Traditional - static • Applications run on physical servers • System administrators monitor and manually manage servers • Use Storage Array Networks (SAN) or Network Attached Storage (NAS) to hold data • Modern - dynamic, larger scale • Run applications inside virtual machines • Flexible mapping from virtual to physical resources • Increased automation allows larger scale 3 3 Tuesday, April 19, 2011
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Tim Wood - UMass - CS 677 Inside a Data Center • Giant warehouse flled with: • Racks oF servers • Storage arrays • Cooling inFrastructure • Power converters • Backup generators 4 4 Tuesday, April 19, 2011
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Tim Wood - UMass - CS 677 Modular Data Center • ...or use shipping containers • Each container flled with thousands oF servers • Can easily add new containers • “Plug and play” • Just add electricity • Allows data center to be easily expanded • Pre-assembled, cheaper 5 5 Tuesday, April 19, 2011
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Tim Wood - UMass - CS 677 6 Server Virtualization • Allows a server to be “sliced” into Virtual Machines • VM has own OS/applications • Rapidly adjust resource allocations • VM migration within a LAN Virtualization Layer Linux VM 2 Windows VM 1 Windows Linux 6 Tuesday, April 19, 2011
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This note was uploaded on 11/22/2011 for the course COMPSCI 677 taught by Professor Shenoy during the Spring '08 term at UMass (Amherst).

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GuestLec01 - Data Centers and Cloud Computing CS677 Guest...

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