StorageGrid is a passion for me, so I took notice of your post.
I found no TR docs with BCPs.
It seems our best references are the StorageGrid docs.
As an AWS fan I found your reference to the AWS doc very interesting.
I'm currently working on developement of an AltaVault course witch includes AWS and StorageGrid as cloud stores.
Any additional input you might find would be very usefull to me and other users!
I hope this response has been helpful to you.
At your service,
Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, Fast Lane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)