gsutil cp -r crasing after 30 seconds

[roostarmt]

I'm trying to copy all contents of a Wordprss upload install to a Cloud Bucket using SSH. After executing the command, the files begin to transfer as expected for about 30 seconds, and then the session crashes.  I've tried multiple times with the same result.

Any advice on how to resolve or better transfer 4GB of data to another storage solution would be appreciated. FYI,  I only have ~500MB of free space, therefore, archiving the files first is not an option. 

gsutil cp -r /var/www/vhosts/scswraps.com/httpdocs/wp-content/uploads/ gs://scs_bucket