Cbbackupmgr stops while exporting large data set

I am trying to use the cbbackupmr to backup datasets with a size of 700GB where the cbbackupmgr runs on an EC2 instance and trying to backup the CB cluster running on another ec2 instance. But in doing to so, the backup starts off fine and then at about 300GB, process quits or hangs and nothing happens.
Is there any fix that I could apply in this case?
Thank you.

What version do you have?

version 7.1 of cbbackupmgr. I think version of couch base server it self is 6.5.

I don’t find any issues that would cause that. Please open a case with Customer Support.
You might to check the space available on the backup EC2 instance.