Cejka Rudolf wrote (2017/06/01):
> It is too low for LTO-5. It is at the lower limit before tape
> shoe shining, problably with some tape stops already here.
> The real limit is 47 MB/s for HP and 40 MB/s for IBM, but no
> guarantee it is correct.

Small clarification about this: Speeds 47 MB/s or 40 MB/s are
physical writing speeds after compression, so uncompressed datas
from server to tape drive have to be faster. And because of
variable compression ratio over time, typically between 1:1 and
2:1, then you are safe just with much bigger writing speeds.
>From the other side, if you have writing speed under 100 MB/s,
it is sometimes recommended to switch off compression, so that
even speeds between 50-100 MB/s are safe.

-- 
Rudolf Cejka <cejkar at fit.vutbr.cz> http://www.fit.vutbr.cz/~cejkar
Brno University of Technology, Faculty of Information Technology
Bozetechova 2, 612 66  Brno, Czech Republic

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