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Review For Exam 2Windows 2000 Family ProductsDifference between Win 2000 family membersDirectory ServiceActive DirectorySlide 6ClusteringLoad BalancingPreparing Windows 2000 installationWorkgroup vs. DomainSlide 11File Systems: FAT vs. NTFSDisk ManagementBasic diskDynamic diskMirrored volumeRAID-5 volumeConverting Basic disk to Dynamic diskConverting Dynamic disk to Basic diskLimitations of Dynamic diskFile system securityShared FoldersShared Folder PermissionsNTFS PermissionsShares & permissionsDistributed File System, Disk QuotasDfs: Scenario 1Dfs: Scenario 2Dfs implementation in Win 2000Slide 30Disk Quotas1Review For Exam 2(Week 8, Monday 3/1/2004)© Abdou Illia, Spring 20042Windows 2000 Family Products3Difference between Win 2000 family membersCommon OS functionsNo Disk Fault-toleranceNo Advanced Network Management functionsDisk Fault-ToleranceActive DirectoryClusteringNetwork Load-BalancingWorkstation OS Server Operating systems4Directory ServiceProvides: Single login and Resource lookup.5Active DirectoryCentral Database that store information about all Network resourcesTools for managing network resources (find, add, remove, etc.)Central Database used for:Resource lookup (Searching for specific resources)User authentication (login)6Active DirectoryIndividual resources are called objectsObjects belong to a ClassesEach Class has its own attributes & propertiesUser accounts Computers Printers DomainsObject classes• Object name• Object unique Identifier• Required attributes• Optional attributes• Parent relationship• Username• User’s full name• Password• Account description• Remote access OKUsername: JohnFull mane: Johnny DoePassord: 12#$msDescription: Consultant in Sales depart.7ClusteringTechnique for providing uninterrupted service (even in case of hardware/software failure)Combining two or more servers into one virtual serverServices installed on external storageUsers connect to the virtual server (167.10.11.5 in illustration)One of the clustered servers provides the service at a time8Load BalancingLoad balancing = Distributing the load among multiple computersNo External disk containing services to be providedMultiple independent servers configure to participate in the load balancingSame service with the same content on each serverUsers connect to the virtual server (167.10.11.5 in illustration)Users’ requests are redirected to one server at a time so that the load is distributed among all the serversWebserviceWebserviceWebserviceWebserviceWebserviceVirtual server167.10.11.59Preparing Windows 2000 installation10Workgroup vs. DomainDomain:A logical grouping of servers and other network resources that share a central directory database (Active Directory)Types of computer in a domain:Domain controllers (DC) running a Server OSEach domain controller maintains a copy of Active DirectoryEach domain controller can authenticate usersMember server (MS) running a Server OS.A MS is not configured as a DCA MS doesn't store a copy of ADA MS cannot authenticate usersClient computers running a Workstation OSDomain administrator has absolute right to set policies within a domainNote: A domain does not refer to a single location. In a domain, computers can share physical proximity on a small LAN or can be located in different corners of the world.11Workgroup vs. DomainWorkgroup:A logical grouping of networked computers that share resources such as files and printers.Called Peer-to-Peer network because computers can share resources as equals, without a dedicated server.In a Workgroup, each server and each workstation maintains a local database which contains user accounts and resource security information for that computerIn a Workgroup, the administration of user accounts and resource security is decentralized:A user must have a user account on each computer the user needs to accessAny change to a user account must be made on each computer12File Systems: FAT vs. NTFSDisks can be formatted using, basically, two types of formatting systems: FAT & NTFSWindows 2000 supports both File Allocation Table (FAT) and NT File System (NTFS)FAT:Is an older file system designed for computers with small disk storageOffers less data security than NTFSLong file names (<= 256 characters)File-level and directory level securityData compressionDisk quotas management for disk usage controlFile encryptionNTFS FeaturesFAT16 FAT32 NTFSSupported by MS-DOS, Win 3.x and Win 95 v.1 ?YES NO NOSupported by Win 95 OSR2 & Win 98?YES YES NOSupported by Win NT 3.51 & Win NT 4.0?YES YES YES (NTFS 4.0)Supported by Win 2000?YES YESYES(All ver.)13Disk Management14Basic diskA physical disk that can be accessed by MS-DOS and all Windows-based operating systems. Basic disks can contain up to 4 primary partitions, or 3 primary partitions and an extended partition with multiple logical drives. Primary partition 1Primary partition 2Primary partition 3Primary partition 4Primary partition 1Primary partition 2Primary partition 3Extended partition• A primary partition is a portion of a physical disk that functions as though it were a physically separate disk.• You create a primary partition, then you format it with a file system (FAT or NTFS,) and then assign a drive letter to it (e.g. C:, D:, F:, etc.)• A primary partition can start the OS (contain the boot files)• A special kind of partition used to create one or more logical drives• After you create a logical drive, you format it and assign it a drive letter (e.g. G:, H:, etc.)• An extended partition cannot start the OS.Note: With GPT (GUID partition table) disk-partitioning scheme that is used by the Extensible Firmware Interface (EFI) in Itanium-based computers, we can create up to 128 (primary) partitions per disk15Dynamic diskWith Win 2000, you can convert a Basic disk to a Dynamic diskWith a dynamic disk, you can create an unlimited number of volumes Volume C:Volume D:Volume E:Configuration partition (1 MB)Etc….Dynamic disks provide features that basic disks do not, such as:the ability to create volumes that span multiple disks (spanned and striped volumes), and the ability to create fault tolerant volumes (mirrored and RAID-5 volumes). A spanned volume is a dynamic volume consisting of disk space on more than one physical disk. Spanned volumes are not fault


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EIU CIS 3700 - CIS3700Class16

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