In arbitration, inaccessible data is data to be discovered and produced as shown in the Cassondra Todd v Guidance Software case. There’re several reports on this case which you can search via google. This report (also tweeted) gives a best guess of the timeline of the events, which I find handy to scan, read and make my own analysis.
What are your views on the arbitrator’s order for disclosure of data residing on backup tapes?