[Premium] no space in disk error in function app

**Describe the bug**
My function app is a docker file hosted on linux and running python script. this app need a lot of temp local disk volume about GB level. sometimes, it will run into error "no space in disk...". i changed to app service plan "P1V2", and this app plan should support "Storage
250 GB disk storage shared by all apps deployed in the App Service plan". but it still failed if the video is too big but not larger than 250GB.

**To Reproduce**
Steps to reproduce the behavior:
1. create a python function app;
2. deploy to linux with docker container;
3. if the script's temp folder is too big when processing, job will fail.

**Expected behavior**
it should at least support 250G temp disk storage.