97MB/s  sounds suspiciously that there is a 1gig network path somewhere between 
your client and the storage server.

If you run iperf between the host and the server and get > 100MB/s and thus 
using larger networking, next I would check compression settings, I would also 
check storage system throughput.

Lastly I would go back and re-run the btape testing from the manual to check 
the performance of your tape path subsystem.


Brock Palen
[email protected]
www.mlds-networks.com
Websites, Linux, Hosting, Joomla, Consulting



> On Jun 16, 2022, at 2:29 PM, Pete Forde <[email protected]> 
> wrote:
> 
> We have a Bareos installation with a Scalar I3 library connected and two IBM 
> LTO7 drives attached by 8G fibre. but we are only seeing the backups run at 
> 97MB/sec. very slow
> 
> 
> Pete
> 
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