Where to save/extract files on Azure Web Sites?

I have web application for running unit tests for our data and I want to deploy it as Azure Web Site.
The problem is in this app I’m downloading quite large zip files, extracting them (~50MB, 500 files inside) and doing some tests over these files.
Where should I save these large files on Azure Web Sites and where hould I extract them? On localhost I’ve been using “Path.GetTempPath()”, but Azure Web Site is reporting that there is no space in this folder, even though my Azure Site has 1000MB total and about 990MB free.
Is there any way how to use these 1000MB for my file operations?
In case this is not possible, should I use the Azure Blob Storage for the extracted files?

ThreadPool SetMinThreads – the impact of setting it

I am trying to understand the impact of setting ThreadPool.SetMinthreads. I have multiple virtual applications running in one Azure App Service. My understanding is that all these virtual applications will share the App Pool, and will have only one worker process (Assuming the App Pool’s max worker process will be 1).