CHAPTER 4 The Components of the System 8.ppt

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1、CHAPTER4TheComponentsoftheSystemUnitPuttingItAllTogetherInstallingNOSNetworkoperatingsystem(NOS)installationistheprocessofcreatingandcopyingNOSsystemfilestoaharddisk.BypurchasingaPCorserverwithapreinstalledOS,acustomeravoidsthecomplexprocessofinstallationandconfiguration.Thedrawback

2、isthatacustomermaynotbeabletocontroltheexactfeatures,packages,andconfigurationoftheOSorNOS.NOSadministratorsusuallyprefertohavedirectcontrolofsoftwareversions,updates,andpatchesinstalledonthesystem.PlanningtheSystemTheNOSinstallationshouldbecarefullyprepared.ThereisnooneNOSthatworks

3、withallcomputerhardware,sodeterminewhetherthecurrentlyavailablehardwarewillworkwiththeNOS.DetermineiftheNOSsupportsallapplicationsoftwarethatwillbeloadedonthesystem.BecomefamiliarwiththeNOSitself.Aspartoftheinstallationprocess,importantconfigurationdecisionswillhavetobemade.Planning

4、HardwareInstallationVerifythateverythingspecifiedintheinstallationplanisreadyandavailablebeforebeginningtheinstallation.Activitiesinclude:VerifyingtheInstallationSiteVerifyingthePowerSourceVerifyingtheUPSSizeAdequateTemperatureinaServerRoomVerifyingtheNetworkConnectionServerHardware

5、ComponentsCheckthecomponentsthatwillbeusedtoassemblethenetworkserver.Somevendorsdonotassembleallthehardwareforanetworkserverwhentheyareordered.Verifythattheserverchassisisthecorrectmodelthatwasorderedandthecorrectformfactor.Mostserverchassisareeitherofatowerconfiguration,awide-or“fa

6、t-”towerconfiguration,orarack-mountconfiguration.ServerHardwareComponentsArack-mountserverchassismustbemountedinanequipmentrackdesignedforrack-mountedhardware.Theracksgenerallycomeinseveralsizes(heights).Theracksizeismeasuredinrackunits(U)andastandardrackunitis1.75inches.ServerHardw

7、areComponentsVerifythatthefollowingproductsareordered:AmonitorthatsupportsVGAresolutionofatleast1024by768dotsperinch(dpi)UPSisavailableforthenetworkserverAnadequatebackupsystemThecorrectcableshavebeendeliveredtoconnecttheSCSIchannelcontrollertothediskdrivesThecorrectnumberandtypeofp

8、rocessorsareavailab