Tham khảo tài liệu 'data center', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Data Center When devices speak different languages 2 Building Control Systems HVAC, Manufacturing Security Devices Power and Lighting 3 Common Ground - Packets are just like letters Ethernet Packet Preamble Destination Source Type Data CRC/FCS 8 bytes 6 bytes 6 bytes 2 bytes 46-1500 bytes 5 Bytes 4 Carrier meets Enterprise VOICE CIRCUIT V IP O ICE DATA VOICE D A T PLATFORM A 5 When devices speak a common language 6 Building Control Systems HVAC, Security Devices Power and Manufacturing Lighting 7 Today’s Emerging Network – More Networked Devices than Users • Early History of Networking – Multiple Users Shared Computing Resources: User to Device Ratio 1:5 or more • Recent History – All Users had a computer: User to Device Ratio 1:1 • Emerging Network – All Users have a computer, IP Telephone, add to this IP Security Cameras, WiFi Access Points, Intelligent Building Networks: User to Device Ratio begins to exceed 3:1 10:1 – In excess of three networked devices for each user and growing! • What are the implications of this ratio on our Networks? 8 Total IP Convergence Drives Data Center Growth HVAC Lighting Security WAP VoIP Bursty More Networked Devices drive additional Equipment in Data Center Baseline IP 9 Data Centers Telephone Exchange • Originally circuit switched • High Availability • High Density • Cooling wasn’t of great concern • Mechanical, Environmental and Electrical performance of the highest importance 11 Enterprise Computer Room • Traditionally housed stand alone servers in the Enterprise • Large amount of space needed • Not designed for Uptime • Density was low and heat was not a great concern • Mainly used for Email and data storage 12 Carrier Meets Enterprise • Telephone Exchanges/Central offices are evolving into Data Centers 13 Data Centers emerge • Server numbers increased • More Space required • Availability and Power • Density increased and heat started be become a concern • Centralized applications and storage start to become a critical part .
