Server Hardware Chapter 22 Release 22/10/2010Jetking Infotrain Ltd.

Slide 2 of 25Chapter 2 Objectives  Explain the difference between a server and PC  Identify the components of a server  Explain the different types of server Release 22/10/2010Jetking Infotrain Ltd.

Slide 3 of 25Chapter 2 Server  To provide high availability and redundancy, hardware used in servers are different as compared to a normal desktop.  Server is a device with a set of hardware and software, provides various services to other machines or computers on the network to do some certain tasks.  Servers are dedicated, high-reliability computers that are generally used to support multi-user business applications Release 22/10/2010Jetking Infotrain Ltd.

Slide 4 of 25Chapter 2 Question for GD Time Limit – 4 Mins  What is a hardware based server? Release 22/10/2010Jetking Infotrain Ltd.

Slide 5 of 25Chapter 2 Difference between Server and PC - I Server PC Uses Xeon or Itanium processor in multiple numbers Uses single desktop processor Multiple Hard disks are usedSingle hard disk is used Higher memory capacity and in multiple numbers e.g. 2 or 4 or 8 Lower memory capacity and less in number e.g. 1 or 2. Network capability is betterNormal network capability Serves more number of users e.g. 100 or 500 or 1000 Are built for individual user Structure is more advanced and complex Simple structure Release 22/10/2010Jetking Infotrain Ltd.

Slide 6 of 25Chapter 2 Difference between Server and PC - II Requires redundant system to cope with failure. Doesn’t have redundant system. Can run 24*7Operate for normal hours e.g. 8 hours per day Supports hardware RAIDDoesn’t support RAID More number of expansion slotsLess number of expansion slots More number of cooling fans e.g. 4 or 8 Less number of cooling fans e.g. 1 or 2 Huge size and weightLess size and weight Can be tower or rack or blade model Only tower model More number of SMPSs e.g. 2 or 3 which are hot swappable Single normal SMPS is used Release 22/10/2010Jetking Infotrain Ltd.

Slide 7 of 25Chapter 2 Difference between Server and PC - III Release 22/10/2010Jetking Infotrain Ltd.

Slide 8 of 25Chapter 2 Question for GD Time Limit – 4 Mins  What is the difference between a server and a PC? Release 22/10/2010Jetking Infotrain Ltd.

Slide 9 of 25Chapter 2 Types of Server  Entry Level  Mid Range  High End Release 22/10/2010Jetking Infotrain Ltd.

Slide 10 of 25Chapter 2 Entry Level Server  Mainly used for running server applications such as file sharing, print sharing, Web serving, low volume and business automation applications. Release 22/10/2010Jetking Infotrain Ltd.

Slide 11 of 25Chapter 2 Question for GD Time Limit – 4 Mins  Example of an entry level server? Release 22/10/2010Jetking Infotrain Ltd.

Slide 12 of 25Chapter 2 Mid Range Server  A medium sized server which consists of a platform hardware and operating system together to support the operating environment for applications. Mid range server comes with a built in database to serve a smaller group of users. Release 22/10/2010Jetking Infotrain Ltd.

Slide 13 of 25Chapter 2 High End Server  Provides a web hosting environment with high server availability such as high performance, reliability and high speed. Designed to achieve supercomputer level of performance. Release 22/10/2010Jetking Infotrain Ltd.

Slide 14 of 25Chapter 2 Question for GD Time Limit – 4 Mins  What are the different types of servers? Release 22/10/2010Jetking Infotrain Ltd. Sl.Types of Servers

Slide 15 of 25Chapter 2 Components of a Server - I  RAID Controller - A disk controller card that supports one or more RAID configurations.  RAID controller can either embedded in the motherboard or come in the form of PCI expansion cards. Release 22/10/2010Jetking Infotrain Ltd.

Slide 16 of 25Chapter 2 Components of a Server - II  SAS/SCSI Hot Swappable HD - SAS/SCSI hot swappable drives allow users to remove the faulty hard disk and insert a new disk without doing power off the server.  Most of the modern server has the ability to use hot swappable hard disks along with disk array.  SAS/SCSI hot swappable HDs are usually located in a caddy or tray inside the server Release 22/10/2010Jetking Infotrain Ltd.

Slide 17 of 25Chapter 2 Components of a Server - III  Backplane - Circuit board which connects several connectors in parallel to each other. Each pin of the connector connects with corresponding pin of all other connectors and forms a computer bus.  Server commonly has backplane to attach hot swappable hard drives. Release 22/10/2010Jetking Infotrain Ltd.

Slide 18 of 25Chapter 2 Components of a Server - IV  SCSI Cable - SCSI cables are used to connect and transfer data between computer and peripheral devices such hard disks. SCSI cable length range from 6 meters to 25 meters.  ECC RAM - Used for detecting and correcting error during storage and transmission of data in server. There are certain kinds of RAM which use this technique to correct the data errors. Release 22/10/2010Jetking Infotrain Ltd.

Slide 19 of 25Chapter 2 Components of a Server - V  Fan - Used to remove the heat produced inside the server. Server fans are located inside a bay. Commonly server contains 3, 4, 6 or 8 fans to cool the system.  Hot Swappable SMPS - Two or more SMPS are attached to a single machine. If any one of the SMPS is not working, other one takes the control. Release 22/10/2010Jetking Infotrain Ltd.

Slide 20 of 25Chapter 2 Group Activity Time Limit – 5 Mins  Draw a window pane on different components of a Server. Release 22/10/2010Jetking Infotrain Ltd.

Slide 21 of 25Chapter 2 Practical Activity Time Limit – 49 Mins  Show these components to the students and get the activity 1 mentioned in this chapter done from the students. Release 22/10/2010Jetking Infotrain Ltd.

Slide 22 of 25Chapter 2 Summary – I  Server is a device with a set of hardware and software, which provides various services to other machines or computers on the network.  Main features, which differentiate a server from other computer system are performance, scalability, availability, reliability and redundancy.  Major components of server are RAID controller, ECC memory, Backplane, Fans, SCSI Hot swappable HDD, SCSI cables and Hot swappable SMPS.  RAID controller is a disk controller card that supports one or more RAID configurations.  SAS/SCSI hot swappable drives allows the user to remove the faulty hard disk and insert a new disk without doing power off the server.  Server commonly has backplane to attach hot swappable hard drives. Release 22/10/2010Jetking Infotrain Ltd.

Slide 23 of 25Chapter 2 Summary – II  SCSI cables are used to connect and transfer data between computer and peripheral devices such hard disks.  ECC RAM is used for detecting and correcting error during storage and transmission of data in server.  Entry level servers are used to run several server applications such as file sharing, print sharing, Web serving, low volume and business automation applications.  Mid range server is used for more intensive database storage and retrieval functions.  High end server provides a web hosting environment with high server availability. Release 22/10/2010Jetking Infotrain Ltd.

Slide 24 of 25Chapter 2 Explorative Work  Refer to Internet, reference books or magazine to get the information.  Do not copy the information provided in this text book.  Consult your faculty for further guidance. Release 22/10/2010Jetking Infotrain Ltd.

Slide 25 of 25Chapter 2 Mind Map  Draw a mind map to summarize this chapter Release 22/10/2010Jetking Infotrain Ltd.