Chapter 5. Planning, Implementing, and Maintaining Server Availability

Chapter 5. Planning, Implementing, and Maintaining Server Availability

Terms you'll need to understand:

  • Network Load Balancing Manager (NLBM)

  • Mean Time Between Failure (MTBF)

  • Redundant array of independent (or inexpensive) disks (RAID)

  • Automated System Recovery

  • Shadow Copy

Techniques you'll need to master:

  • Configuring servers to use Network Load Balancing

  • Configuring servers to use the Microsoft Cluster Service

  • Scheduling regular system backups with NTBACKUP

  • Performing data restoration from backup sets with NTBACKUP

  • Determining Mean Time Between Failures (MTBF)

  • Understanding component load balancing

  • Installing and configuring RAID sets

  • Installing and configuring shadow copies on shared folders

Windows Server 2003 provides both the Cluster Service and Network Load Balancing for load balancing, high availability, and high reliability. Server systems and all their components have a rated reliability number (usually expressed in hours) called the Mean Time Between Failure ( MTBF ). The MTBF shows the measured failure rate of the system's individual components.

A high-availability server is expected to be available at all times: 7 days a week, 52 weeks a year. In effect, the system is built and deployed with the consideration that it would never be offline. This is, of course, not always true because every server needs to be shut down periodically for upgrades or to recover from system failures.

High-availability server deployments are normally undertaken as follows :

  • Ensuring the longest span of time between hardware failures by referring to the MTBF ratings for hardware devices

  • Installing and configuring the clustering services in the Windows Server 2003 operating system

  • Third-party clustering solutions



MCSE 70-293 Exam Cram. Planning and Maintaining a Windows Server 2003 Network Infrastructure
MCSE 70-293 Exam Cram: Planning and Maintaining a Windows Server 2003 Network Infrastructure (2nd Edition)
ISBN: 0789736195
EAN: 2147483647
Year: 2004
Pages: 123

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