In the last episode (Mar 24), adp said:
> I know that under Linux I can modify how the OS uses IDE drives using
> hdparm. Is there an equivilent for FreeBSD? 'man tuning' seems to
> indicate that there isn't anything and that I only need to worry
> about whether I need to use softupdates. (It also mentions sysctl
> values such as vfs.vmiodirenable, which seems enabled in 4.9 by
> default.) I can see a need to tweak the parameters of how FreeBSD
> uses my disks unless it already knows when to enable certain
> features, for example 32-bit IO.
The old wd disk driver used to have a flag to enable 32-bit transfers,
but the ATA driver doesn't. I assume it always uses 32-bit. You can
set the transfer speed with the "atacontrol" command if the driver
didn't detect the right speed.
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