1. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-1 Lesson 12 Fault Tolerance

2. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-2 Windows Server 2003 supports two types of disks  basic  dynamic

3. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-3 Basic Disks  can be accessed by Microsoft Windows Server 2003 and all previous Microsoft Windows or MS- DOS operating systems.  can be segmented into as many as four partitions.

4. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-4 Partitioning Primary partition and Extended partition The combination of partitions can include up to four primary partitions or three primary partitions and one extended partition.

5. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-5 Primary partition Primary partitions can be used to start legacy operating systems and are treated as a single volume.

6. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-6 Extended partition An extended partition can be broken into multiple logical drives. Each logical drive is managed as a separate volume, allowing administrators to create as many volumes on a basic disk as necessary.

7. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-7 Partition Format Basic partitions and logical drives can be formatted as either FAT, FAT32, or NTFS disks.

8. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-8 Dynamic Disks -1  can be segmented into several logical drives referred to as dynamic volumes.  are managed by the operating system using the Virtual Disk Service (VDS).

9. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-9 Dynamic Disks -2 Many volumes can be defined on a dynamic disk, but limiting the number of volumes to 32 or fewer is recommended. After a disk is converted to a dynamic disk, it can be mounted only by Windows Server 2003 systems, but the data can still be accessed by other operating systems using Windows Server 2003 file services, including Web services, FTP services, file shares, and other client/server-based applications. In some configurations, dynamic volumes can span two or more disks and provide disk fault tolerance.

10. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-10 Dynamic volume types provided in Windows Server 2003  Simple volume  Spanned volume  Striped volume  RAID 5 volume  Mirrored volume

11. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-11 Building Fault-Tolerant Systems  Using Uninterruptible Power Supplies (UPS)  Choosing Networking Hardware for Fault Tolerance  Selecting Server Storage for Redundancy  Improving Application Reliability

12. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-12 Key terms associated with Windows Server 2003 clustering

13. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-13 Clustering - 1 A cluster of servers provides fault tolerance and/or load balancing. If one server fails, one or more additional servers are still available. Load balancing distributes the workload over multiple systems.

14. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-14 Clustering -2 Clustering mode Chooosing the Right Clustering technology Microsoft Cluster Service Implementing Cluster Service Choosing Applications for Cluster Service Installing Cluster Service Managing Clusters Testing Clusters Maintaining Cluster Nodes Restoring the Failed Nodes Upgrading Cluster Nodes

15. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-15 Clustering mode  Active  Passive

16. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-16 Implementing Cluster Service  the single-quorum device cluster  single-node cluster  the majority node set cluster The three configuration models

17. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-17 Backing Up the Windows Server 2003 Operating System and Services  Backing Up Boot and System Volumes  Backing Up Data Volumes  Backing Up Windows Server 2003 Services  Backing Up the System State

18. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-18 Volume Shadow Copy  Using the Volume Shadow Copy Service  Configuring Shadow Copies  How To enable and configure shadow copies  Limitations  Shadow Copy Management Using vssadmin.exe

19. WINDOWS SERVER 2003 Copyright @ Genetic Computer School 2008 12-19 Cluster configuration models  Single-quorum device cluster  Single-node cluster  The majority node set cluster