By Jeffrey R. Shapiro
This can be the definitive source for each community administrator, advisor, and architect who must maximize availability, scalability, and function in home windows server environments. Drawing on twenty years of home windows server adventure, Jeffrey Shapiro and Marcin Policht have written the main reasonable, accomplished, and self reliant home windows excessive availability advisor ever released. One step at, a time, they assist you intend, enforce, and deal with clustering, load balancing, fault tolerance, SQL Server, trade Server, and masses extra. alongside the way in which, they tackle the most important excessive availability subject matters which are nearly overlooked by way of such a lot books, resembling catastrophe restoration, functionality tracking, and operations administration. Shapiro and Policht supply a transparent, concise roadmap for retaining home windows servers working 24x7 and providing on even the main not easy service-level agreements. they supply real-world case experiences and easy-to-use directions designed to aid readers make higher judgements extra swiftly.
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Class drivers: Cover functionality that is common across a range of similar devices, which belong to the same category, such as disk, tape, or CD-ROM. • File System software: Implements file system functionality, which provides representation of the disk data in the form of files and folders, including their properties (for example, permissions or ownership in case of NTFS). Windows supports a number of file systems, such as FAT32, NTFS, CDFS, or UDFS. Choice of the file system is important from the reliability perspective.
Time-Out You can easily make the analogy of a good marriage when it comes to processors and memory. Choices these days are relatively simple for new systems, the vendors are very quick to retire models as soon as the new CPUs stabilize (many still remember the day Intel recalled its best CPU from all over the world due to a floating point operation flaw). Thus, you are unlikely to have more than a few choices in processor speed. The big decisions and calculations you need to make center on the number of processors in each system and the amount of memory.
Known also as stripeset without parity, it consists of a number of disks (at minimum two) onto which data is written in stripes. Content of the I/O buffer during a data write is divided into basic units of I/O (size typically ranges from 512 bytes to 8MB), with each unit being written to a separate disk in a round-robin fashion (first unit to the first disk, second unit to the second disk, and so forth; after the last disk is reached, the writing process starts from the first disk again). This can provide significant performance advantages during writes and reads (providing that hardware supports writing to and reading from multiple disks simultaneously), but it does not provide data redundancy.
Building high availability Windows Server™ 2003 solutions by Jeffrey R. Shapiro