erik quanstrom wrote:
you may want to try a block size of 64k in your tests.
this may make a difference.
thats exactly what the dd based testscript does:
fn rotest {
...
dd -if $1 -of /dev/null -bs $3 &
...
}
...
b=65536
rotest $d $t $b
...
i choose that blocksize because the I/O erros printed by venti
while i first tried to copy arenas showed that blocksize.
i conclude for now that doing paralel io on both drives results
in I/O errors in short time. reading/writing a single drive, the
system hangs/freezes after many hours without a trace.
- erik
cinap