1 Library as a service in Digital Era Preparing academic campuses in Indian scenario Department of Electronics and Communication Engineering National institute of Technology, Rourkela, India Where every one strives to attain his potential 14 February
2 Presentation outline 2 Library resources historical and current perspective Computer networks Servers Storage Virtualization and cloud Cloud services publicly available Conclusion
3 3 Library history
4 Library what it contains? Text books Reference books Research books Journals CDROM volumes/ soft volumes Institutional publications Institutional theses Institutional resources/ reports etc 4
6 Library 1990 scenario 6 Books Reference books Journals Back volumes of Journals CD ROM database Dataset and reference data base (in CDs) Microfiche VHS videos Theses and repository
7 Library current scenario Books Reference books Other types resources like microfiche, VHS, CDROMs no more available 7 Large volume of resources through computer network and internet service
8 Library on desktop From Physical library resource to virtual library resource on desktop Driven by: strong IT infrastructure How to enable it? 8
9 Core requirement A campus computer network Server infrastructure Storage infrastructure Internet services for accessing information from outside Internet services to deliver information, to showcase our own scholastic output. 9
10 10 Network infrastructure
11 What is a computer network A computer network or data network is a communication link which allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections (network links). Data is transferred in the form of packets. The connections between nodes are established using either cable media or wireless media.
12 Computer Networks Computer network connects two or more autonomous computers. The computers can be geographically located anywhere across the globe.
13 LAN, MAN and WAN Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network) Network in a City is call MAN (Metropolitan Area Network) Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)
14 Uses of a computer network Resource Sharing Hardware (computing resources, disks, printers) Software (application software) Information Sharing Easy accessibility from anywhere (files, databases) Search Capability (WWW) Communication Message broadcast Remote computing Distributed processing (GRID Computing)
15 Network Topologies Bus topology Ring topology Star topology Mesh Extended star 15
19 Network Address Translation Converts a network s Private LAN IP addresses to Public IP addresses Internal IP Addresses Corporate LAN Internet Public IP Address(es) Hides the true addresses of individual hosts, protecting them from attack Allows more devices to be connected to the network 19
20 Network Applications 20 Searchable Data (Web Sites) E-Commerce News Groups Internet Telephony (VoIP) Video Conferencing Chat Groups Instant Messengers Internet Radio
21 21 Server and storage Infrastructure
22 Server infrastructure 22
23 what is the difference between desktop computer and server 23 A desktop computer system typically runs a user-friendly operating system and desktop applications to facilitate desktoporiented tasks. A server manages all network resources. Servers are often dedicated (meaning it performs no other task besides server tasks). it has to be more reliable than a desktop computer.
24 Network Resources Manage by Sever 24
25 Server structure by generation Rack Server 25 WorkStation Blade Centre Blade Server is Fourth generation architecture with high configuration Blade Centre is an enclosure based architecture with common PSU, network switch, SAN etc. Each Blade can have 4 Nos of CPU each CPU is of 12 core beyond 256 GB RAM can use support SAN Storage, Network Attached Storage, Tape Library
26 Storage SAN NAS LTO 26 Storage Area Network (SAN) - is a high-speed network of storage devices that provides block-level storage which can be accessed by the applications running on any networked servers. Network Area Storage (NAS) - is file-level computer data storage server connected to a computer network providing data access to a heterogeneous group of clients. Linear Tape-Open (LTO) - is an open-format tape storage technology.
27 How to use High End Resources VMware is a virtualization and cloud computing software. VMware virtualization is based on the ESX/ ESXi bare metal hypervisor, supporting virtual machines. 27 VM, which stands for "Virtual Machine is a widely-installed operating system for computers and servers that can host other operating systems in such a way that each operating system behaves as if it were installed on a selfcontained computer with its own set of programs and hardware resources.
28 Top Virtualization Solution provider companies VMWare Vsphare servers Red Hat Enterprise Virtulization Microsoft Hyper-V Virtualization CITRIX Xen Virtualization 28
29 Cloud Computing Cloud computing is typically defined as a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications. 29 In cloud computing, the word cloud is used as a metaphor for "the Internet," so the phrase cloud computing means "a type of Internetbased computing," where different services such as servers, storage and applications are delivered to an organization's computers and devices through the Internet.
30 Cloud Deployment Models The four primary types of cloud models are: Public Private Hybrid Community 30 Public Cloud : A public cloud is a cloud computing model in which services, such as applications and storage, are available for general use over the Internet. Private Cloud: A private cloud is a virtualized data centre that operates within a firewall. Private clouds are highly virtualized, joined together by mass quantities of IT infrastructure into resource pools, and privately owned and managed. Hybrid Cloud: A hybrid cloud is a mix of public and private clouds. Community Cloud: A community cloud is an infrastructure shared by several organizations which supports a specific community.
31 Cloud Computing services 31 Software As A Service (SaaS): Users are provided access to application software and databases. Cloud providers manage the infrastructure and platforms that run the applications. Platform as a service (PaaS) : Cloud providers deliver a computing platform, typically including operating system, programming language execution environment, database, and web server. Infrastructure as a service (IaaS) : providers of IaaS offer computers physical or (more often) virtual machines. To deploy their applications, cloud users install operating-system images and their application software on the cloud infrastructure.
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