NB The CADC Storage inventory system I (Rosie) mentioned is here: https://github.com/opencadc/storage-inventory
I now have permission to share a demo/explanation that Pat Dowler (Patrick.Dowler@nrc-cnrc.gc.ca) gave to an SKA Regional Centre group meeting a few weeks ago. He's happy for folks to get in touch with him if there are further questions.
Link:
Passcode: =5&09QXE