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When you develop projects in Microsoft Azure Cloud Services, in typical cases you want to begin with a small size of the project, which uses the least resources possible. Then, as your project grows, you configure your project to utilize more resources to accommodate the performance and size requirements of the project. This topic presents main levels of development on Microsoft Azure and provides links to related configuration tasks, which you need to perform when ascending to a higher level.
You can choose to begin developing your Kentico Azure project locally in an emulator before deploying it to the cloud environment. In this case, set up a database and Azure Storage service and configure the web role's settings. See Developing Kentico Azure projects locally.
For the duration of project development, one instance of CMSApp web role is usually enough. To configure a project to use one web role instance, perform the basic configuration tasks.
When you deploy your project and switch to the production environment, you may want to qualify for the Microsoft SLA (opens in a new tab). In such case, your project must use at least two instances of the CMSApp web role. When you increase the number of used web role instances, you need to adjust your project to synchronize the data between the instances and to store session state information.
For data synchronization, you can use the default web farm synchronization tasks, in which case you do not need to configure anything.
For storing session state information, you can use Microsoft Azure SQL Database – see Storing cache and session state data in Azure environment.
When the performance of the level 2 environment is not sufficient, you can configure the Azure Redis Cache to store session state information – see Storing cache and session state data in Azure environment.
When you need even more power, you can further scale your project using the following approaches: