Spoiler Alert- If you have never watched Star Wars, Alderaan is about to have a very bad day.
A hard drive dies... There go your photos, videos or your thesis. A terrible thing. Now multiply that, not by one hundred, nor a thousand, not ten or a hundred thousand but by millions. That what the data loss for a planet looks like. In the greater scheme of things it's nothing compared to the loss of life.
This is an extreme event and perhaps we may question the point of saving anything if no one is left to use it later. I would answer yes because if there is the slightest chance that someone survives, that stored knowledge is part of their birthright.
So what happens next? Wait, that's not a moon...