About 30 high-availability: Scheduling of the example (23)

SLB on a need to talk about the basic knowledge on a matter of fact, half of the book there, to write very boring, but still have some of the Overview would be better, but this in terms of a practical monographs good. SLB is the first three are four ways that we most frequently encounter and use, but in fact is the foundation of the fourth, because if not designed to Scale Up of the system, ...About 30 high-availability: Scheduling of the example (23)