Terry Critchley's High Availability IT Services PDF

By Terry Critchley

ISBN-10: 1482255901

ISBN-13: 9781482255904

This booklet starts off with the elemental premise service is constructed from the 3Ps—products, tactics, and folks. furthermore, those entities and their sub-entities interlink to aid the providers that finish clients require to run and help a company. This widens the scope of any availability layout a ways past and software program. It additionally raises the opportunity of provider failure for purposes past simply and software program; the concept that of logical outages.

High Availability IT Services info the concerns for designing and working hugely on hand "services" and never simply the systems infrastructure that helps these companies. offering an outline of virtualization and cloud computing, it offers a close examine availability, redundancy, fault tolerance, and defense. It additionally stresses the significance of human factors.

The publication begins by means of supplying an availability primer and detailing the explanations why you should be all for excessive availability. subsequent, it outlines the speculation of reliability and availability and the weather of tangible practices during this excessive availability (HA) sector, together with provider point Agreements (SLAs) and alter Management.

Examining what the foremost and software program owners need to provide within the HA international, the e-book considers the ever present global of clouds and virtualization in addition to the provision issues they present.

The booklet examines excessive availability options and architectures comparable to reliability, availability, and serviceability (RAS); clusters; grids; and redundant arrays of autonomous disks (RAID) garage. It additionally covers the function of safeguard in supplying excessive availability, cluster choices, emergent Linux clusters, on-line transaction processing (OLTP), and relational databases.

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High Availability IT Services by Terry Critchley

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