... Then you need to set the environment variable tpool to point to the directory you intend to unload the data into. As a safety precaution when you are getting data off tape you should run disk_master , it needs sc_td as a command line argument in this case. ... The tape number it requires is the nrst number (usually 0) and typically you will want to unload all systems with no clipping, no skipping and to create a summary file. ... Back to the Filterbank data reduction page. ...