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We used to have files consisting of many multiple tapes. We changed the OS to do dead reckoning on the end of each tape so we could stop well clear of the actua
by beardyw 3y ago
We used to have files consisting of many multiple tapes. We changed the OS to do dead reckoning on the end of each tape so we could stop well clear of the actual end mark. That way individual tapes could be copied and substituted if needed. Hard to see the reason if you don't just know.
- vitiral 3y agoI don't think I understand but maybe that's the point. Maybe it seems mysterious because there were other requirements at the time which were themselves already mysterious?
- beardyw 3y agoIf you try to copy a tape to a slightly shorter tape you will be out of luck, and only know when it gets there.