Real Application Cluster Yazı Dizisi

Bu gunden itibaren Oraclenın grid mimarisindeki en onemli nokteyı olusturan RAC konusunda bir yazı dizisi olusturacagim.

Oncelikle konuya soye baslamak istiyorum RAC demek grid mimarisinin temelidir örnek vermek gerekirse
bir firma kendisinin is ihtiyaclari icin 8 cpu 16 gb ramli bir makina almak istiyor diyelim.

Bu makinanin maliyeti lisans maliyeti operating sistem maliyeti dusunulurse buyuk fiyatlara cikar.

Yani toplam maliyet yaklasik 100bin dolar diyelim

oysaki 4 tane 2 cpulu 4 gb ram li makina alsak bunları rac yapısında birlestirsek hem maliyet 30-40 dolarlara gelir hemde makinalardan biri dursa bile iş yuku diğer makinalara dağılır ve sistem hiçbir zaman durmamis olur.

Boyle bir sistemin hem toplam maliyet TCO hemde 7/24luk acisindan inanilmaz avantaji vardir.
Bir buyuk avantajda belli sureclerde buyume ihtiyacidir. Bugun IT teknolojilerinin omrunun ne kadar kısa oldugu hepimizce malumdur.

Yani gecen sene 4 cpu size yeterken 2 yıl sonra 8 cpu yetmez duruma gelebiliriz. RAC bu tur durumlar icinde ideal cozumdur.

Bugunden sonra RAC oneli avantajlarına kurulumuna TAF, FAN servisler gibi ozeliklerine devam edeceğim.

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About oracledocuments

Zekeriya Beşiroğlu, It joined the Bilginc IT Academy in July 2000. In the meantime, the Oracle Education, Oracle Data Base Management System and Oracle Internet Technologies, Oracle development technologies such as the training of Oracle products is responsible for training as consultants. During this task, since 1 April 2008 with 293 Oracle training in total, in 2150 Oracle customers successfully submitted. Oracle 10g New York in November 2002 have received training and education in Turkey was the first time the consultants. 20 April 2008 on education in Turkey 11g is the first who was a consultant. Oracle Real Application Cluster Expert advisor is certified is the first . Http://zekeriyabesiroglu.blogspot.com and Http://www.oracleforum.info owner and manager of the site. Its own has more than one hundred articles. In addition, creation and improvement of training materials are also related to work. Oracle products are used, database management and reporting Academy eruditely It also is working on. From the date of 1 January 2009 will continue to work as the Technical Director
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