Unable to write to Volume from DLT pipeline

[melbourne]

Hi,

I've a DLT pipeline running in Unity Catalog, and one of the task is to write content into a file within volume.

I was able to write to file within volume using just PySpark, however when I do the same in DLT, I get an error:

OSError: [Errno 30] Read-only file system: '/Volumes'

Has anyone faced this issue?

[-werners-]

It seems like a permission error.  Can you check if the managed identity has correct permissions to write to the volume?
DLT should be supported to write into volumes.

[melbourne]

I checked all the privileges and it looks alright.

However, I figured out that DLT uses a shared cluster and using that files cannot be written into a Volume.