Re: physio split the request.. cannot proceed

[mlelstv%serpens.de@localhost (Michael van Elst)]

manu%netbsd.org@localhost (Emmanuel Dreyfus) writes:

>Ad since the MAXPHYS limit also exists on plain tape access (without
>LTFS), this means no modern LTO drive can be used at all on NetBSD until 
>you merge your branch?

The drives should work assuming that you restrict yourself to
fixed block sizes <= MAXPHYS or that you use variable block
mode.

The "HP LTO Ultrium 5 technical manual" suggests that it supports
either mode. But it also mentions that is best to use >= 128k in
fixed block mode and >= 256k in variable block mode for performance
reasons. Anything smaller will be slow and, as Thor said, will
waste precious tape.