I read this book in the 80s and based a book report on it. It was a science fiction novel aimed at younger readers with a black(?) dust jacket with a weird kind of crystalline spaceship on the cover.
The title may have had either "sun" or "ice" in it and was a short 2-3 word title.
Somewhere within was a scene in a field and a data storage unit that had lost all records due to a catastrophe.