scw@NetBSD.org (Steve Woodford) writes:

>1. If your USB disk contains a FAT filesystem, be aware that NetBSD's
>   FAT support does not perform read/write clustering. This results in
>   lots of small USB packets, thus under-utilising the available
>   bandwidth.

If the USB disk contains a FAT filesystem then writing means to
read each block before it gets overwritten.

-- 
-- 
                                Michael van Elst
Internet: mlelstv@serpens.de
                                "A potential Snark may lurk in every tree."