I'm using Ultrium LTO1 backup tape to backup the server. It is 100Gb capacity. But I check in the Volumes screen, it show me Written 82Gb and Used FULL. How come?
If your not using compression then the maximum you will get on the tape is 100GB, don't forget also that the amount of data on a tape is dependant on the type of data you are backing up.
for example here at our institute most of our data is already heavily compressed due to data reduction so we would fill an 80gb tape after 45Gb on average.
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