Alan Brown wrote (2012/10/01):
> 2Mb is the maximum block size I've found to work on LTO* - it's a bacula 
> limit, not an LTO one.

Or it could be a limit of an operating system or of used hw interface.

> Increasing from 65535 will improve throughput significantly.
> There have been discussions about this in the last few years.

Sometimes yes, sometimes no. It depends on many things, like hardware
of your server, used interface type and speed and used operating system.
I'm not sure just about one thing right now - on which level rewrites
are done, either on a block level, or on something smaller.

-- 
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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