Amazon Redshift User Guide
Test Connection
Note: Test Connection only tests for the database connection and does not verify if s3 bucket is properly configured. To configure please see https://docs.aws.amazon.com/redshift/latest/dg/r_UNLOAD.html and https://docs.aws.amazon.com/redshift/latest/dg/r_COPY.html
Make Sure that redshift has the necessary access to s3 See https://docs.aws.amazon.com/redshift/latest/mgmt/authorizing-redshift-service.html
Make Sure EazyDI is allowed to access redshift by adding EazyDI IP to security group inbound rules and setting publicly accessible to Yes in redshift
See : Whitelisting EazyDI for application access
Reading Objects
Format for objects are schema/table
Using Redshift as source or target
When Reading or Saving using S3 for staging, you will notice the assigned s3 bucket with the generated temp directories for COPY or UNLOAD