When choosing a tape strategy for implementing your backup solution, don't base your desision soley on the cost of the medium. I've found that by studying the write/read errors on new tapes in new drives backing up 10Gb of data that:
Which gives us this little matrix:
Type | Drive | Media | Reliability |
QIC | cheap | cheap | |
DLT | expensive | cheap | + |
4mm | cheap | expensive | ++ |
8mm | expensive | expensive | +++ |
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