Because raster data is typically pretty large (gigabytes), the Woolpert team recommends using a public cloud storage option to stage your data for STREAM:RASTER to ingest. For example, we often have customers upload data to a Google Cloud Storage (GCS) bucket or Amazon S3 bucket first.
There are some web user interfaces for that type of operation but for robustness we often use something like gsutil rsync to get a lot of data from your on-premises data store to the cloud for ingestion.
If you want to use this option Woolpert will set up a Google Cloud Storage bucket and give you access to upload data.
Woolpert can also accept a hard drive of imagery. Please contact your Customer Engineer or follow along the steps in this article: How do I set up and use STREAM:RASTER?