When the write_to_tape directory in the dps volume is 5TB, the Digital Stewardship Technical Associate performs the vault request and the subsequent removal of things from dps.
What you need:
A Unix-like terminal with SSH capabilities. Like a Mac Terminal or Windows Linux Subsystem.
A dps mounted volume in your desktop environment, otherwise secure shell into the development server to access the mounted share.
What you do:
Check the size in bytes in dps write_to_tape roughly equals 5TB.
Figure 1 - Windows Subsytem for Linux, Ubuntu Bash
Figure 2 - Windows properties sheet
⌘ Cmd+I
Send a message to write_to_tape contributors ‘closing write to tape’ and requesting notification when all in progress additions have completed: