Blade server


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Blade server

  1. 1. BLADE SERVER THE SMALL WONDER PRESENTED BY: Bijeta Oberoi (1801324) Balkrishan Nagpal (1801327)
  2. 2. DEFINITION <ul><li>It is a thin,modular electronic circuit board containing one,two or more microprocessors and memory,network connections, an optional ad in card slot and associated electronics all on a single motherboard called a CPU BLADE . </li></ul><ul><li>IN GENERAL TREMS: </li></ul><ul><li>A Blade Server is a computer system on a motherboard, which includes processor(s), memory, a network connection and sometimes storage. </li></ul>
  3. 3. <ul><li>The blade idea is to address the needs of large scale computing centers to reduce space requirements for application servers and lower costs. </li></ul><ul><li>Blades can be added as required, often as &quot;hot pluggable&quot; units of computing as they share a common high speed bus. </li></ul><ul><li>CPU Blades share common resources such as cabling, power supply and cooling fans. </li></ul><ul><li>Blade technology places a series of computers vertically in an enclosure called a CAGE which is then placed on a rack in the server room. </li></ul>SALIENT FEATURES
  4. 4. CONTD. <ul><li>HOW DISTINCT FROM OTHER SERVERS </li></ul><ul><li>Slim shape of a Blade server. </li></ul><ul><li>Outward scalability </li></ul><ul><li>Improved system performance </li></ul><ul><li>Superb operatability </li></ul>
  5. 5. BLADE ARCHITECTURE <ul><li>Form the foundation for a modular computing paradigm =>simple than rack mounted systems. </li></ul><ul><li>A single Blade consists of: </li></ul><ul><li>One or two high powered processors mounted on a single circuit board </li></ul><ul><li>Memory </li></ul><ul><li>Data storage. </li></ul><ul><li>Multiple Blades go into a single box called CHASSIS. </li></ul><ul><li>Chassis allows aggregation of cabling, power supplies, cooling and other resources (distinct from conventional configurations). </li></ul><ul><li>Blades are plugged into slots and linked together using a high speed bus within chassis. </li></ul>
  6. 6. TYPES OF BLADE SERVER <ul><li>SERVER BLADES- is an independent server containing one or more processors& associated memory, disk storage and networking controllers and running its own OS and applications. </li></ul><ul><li>OPTION BLADES- provide additional features like controllers for external I/O or disk arrays and additional power supplies. </li></ul>
  7. 7. KEY FACTORS TO BE CONSIDERED BEFORE BUYING THE BLADE SERVER <ul><li>Acc. To Craig Slattery, </li></ul><ul><li>“ Should be acc. to type of application.” </li></ul><ul><li>If a large no. of I/O devices are to be connected. </li></ul><ul><li>Upward scalability not required when large no .of servers are to be connected but Expensive if only 1 or 2 servers are installed n them. </li></ul>
  8. 8. ADVANTAGES OF USING BLADE SERVERS <ul><li>AFFORDABLE DENSITY : Increased density => fewer racks => fewer components being replicated => no. of cables reduced => failure decreases. </li></ul><ul><li>FAST DEPLOYMENT : new server deployed easily by sliding blades in and out of a chassis. </li></ul><ul><li>EASY MAINTAINENCE : simply slide out the blade from the chassis in event of server failure ( hot swappable or redundant) / Early diagnosis before failure. </li></ul>
  9. 9. CONTD. <ul><li>MODULAR SCALABILITY : Slide uni or multi processor blade into an open bay in chassis. </li></ul><ul><li>FLEXIBLE AVAILABILITY : </li></ul><ul><li>different types of servers supported. </li></ul><ul><li>Sophisticated cooling and power technology supports processors with varying speeds and types. </li></ul><ul><li>VERSTALITY: </li></ul><ul><li>Blade architecture imposes no limitation of one type processor per server. </li></ul><ul><li>Advanced chassis designs support mix of blades with varying speed and type of processors. </li></ul>
  10. 10. CONTD. <ul><li>PERFORMANCE: Varies from low cost, low performance chips, less electricity bills, saving money used in firewalls, load balancing to high performance chips like Xeon processor and used in enterprise class workloads. </li></ul><ul><li>COST SAVING : Several ways- cable, power etc. </li></ul><ul><li>POTENTIALLY LOWER PURCHASE PRICE (achieved through sharing a chassis) : fewer duplicate components =>cabling savage, fewer racks to house the servers. </li></ul><ul><li>REDUCED POWER CONSUMPTION : by eliminating duplicate power consuming infrastructure components. </li></ul>
  11. 11. CONTD. <ul><li>REDUCED FLOOR / RACK SPACE : due to increased density of blade servers. </li></ul><ul><li>FEWER COMPONENTS TO FAIL : due to reduced no. of components in a rack , the no. of points of potential failure are reduced =>less time spent in servicing the servers. </li></ul>
  12. 12. TARGET SEGMENTS <ul><li>Large data centres and ISPs hosting web sites. </li></ul><ul><li>SINGLE TASKS – file sharing, web page serving, caching. </li></ul><ul><li>Law enforcement </li></ul><ul><li>Banking finance and Insurance sector(BFSI) </li></ul><ul><li>Military establishments </li></ul>
  13. 13. LIMITATIONS <ul><li>The CPU and drive speeds of blades are slower than those of a standard rack mounted server. </li></ul><ul><li>Offers less flexibility as compared to stand alone servers. </li></ul><ul><li>Restricted with the amount of on blade expansion and cannot use a blade without the chassis. </li></ul>
  14. 14. MARKET SCENARIO <ul><li>Blades are the world fastest growing server market segment. </li></ul><ul><li>Acc. To International Data Corporation (IDC) surveys, worlwide blade server market will expand to 1470000 units by 2006 . </li></ul><ul><li>Blades and blade-based systems comprise an emerging market of great potential, in both proprietary and standards-based architectures . </li></ul>
  15. 15. <ul><li>THANK YOU </li></ul>