Book Image

Implementing Azure Cloud Design Patterns

By : Oliver Michalski, Stefano Demiliani
Book Image

Implementing Azure Cloud Design Patterns

By: Oliver Michalski, Stefano Demiliani

Overview of this book

A well designed cloud infrastructure covers factors such as consistency, maintenance, simplified administration and development, and reusability. Hence it is important to choose the right architectural pattern as it has a huge impact on the quality of cloud-hosted services. This book covers all Azure design patterns and functionalities to help you build your cloud infrastructure so it fits your system requirements. This book initially covers design patterns that are focused on factors such as availability and data management/monitoring. Then the focus shifts to complex design patterns such as multitasking, improving scalability, valet keys, and so on, with practical use cases. The book also supplies best practices to improve the security and performance of your cloud. By the end of this book, you will thoroughly be familiar with the different design and architectural patterns available with Windows Azure and capable of choosing the best pattern for your system.
Table of Contents (16 chapters)
Title Page
Packt Upsell

What is a DTU?

DTU is a bit difficult, as it can be described as an object, but it is not actually a real object. DTUs are performance units to which a certain percentage of the total performance of the database server is allocated in CPU, memory, and read or write rates. The offered performance levels contain between 5 DTU (in the Basic service level) and 4,000 DTUs (in the Premium service level P15).

The larger the number of DTUs, the greater the performance of the database. Another criterion for the selection of a performance level is the maximum size of the database.

Also, the maximum size, that can reach the database depends on the selected performance level. The maximum size of the database per level is:

  • Basic: 2 GB
  • Standard (S0 – S12): 250 GB
  • Premium (P1 – P6): 500 GB
  • Premium (P11 + P15): 4 TB
  • Premium RS: 500 GB

Is that all now? No, also the number of simultaneously concurrent requests (maximum concurrent workers), the number of concurrent logins (maximum concurrent logins), and the number...