After this stuffed itself, I went for a QNAP. Offsite backups on external HDDs only need to last as long as the cycle time of the three HDDs. All my data at home going back 30 years is kept on live spinning rust on a RAID5. Sure they'd fail eventually but it improved the chance of that failure being outside the 12 months.īackups on external HDDs are fine so long as you don't use them to archive data. The new set got used in the daily group x times, then y more times in a weekly slot on the rota then when it was written as a monthly it was retired. I can't remember exact the sequence now but after the initial setup month we'd open a new set of 12 tapes every 4 weeks. We added a twist to avoid age related tape failures. HP were putting vouchers in the tape packs, I and one other at work got a freebie Palm Pilot when that was quite an expensive score. I do remember it was awfully expensive on tapes at the start as for us each 'tape' was actually 12 DDS3 in a pair of autoloaders. Grandfather, father, son scheme was it called? Too long ago. That's a good scheme but I would say that as it's the one I used to use.
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