Most organizations are keeping an everincreasing amount of data, yet only a small amount of that data is live or ‘hot’. Some of the rest is occasionally accessed, but the vast bulk is ‘cold’ – data that’s rarely if ever accessed but is kept in case it is required in the future. It might be needed as evidence if a dispute arises, say, or for regulatory compliance, or because external market changes mean we need to analyze something we could formerly ignore.