bpmedialist shows unknown size

[unixlife]

I need to check how much  data filled in each tapes on my SL500 library. Kbytes coloumn in #bpmedialist command shows some of the tapes are 3951162144 and 3386801376 on LTO3 400/800GB tapes! is it normal? Please help....

Config: SL500 with 2xLTO-3 / 30 LTO-3 Tapes

[Andy_Welburn]

My highest for a full tape as it currently stands is: 1173630426, again for LTO3 tapes.

There was a post last week that covered this, I'll post the link in a second.

***EDIT***
Here we go:

Media List Question

I don't think you've got anything to worry about - it may be interesting to find out though exactly what type of data is being stored on those tapes as your values are high.

Conversely, I have one or two full tapes that have a very low kb value.

[unixlife]

Thanks Andy. It seems NB does an intelligent compression, peace of mind....