/dev/ad vs. /dev/ada

[Anton Yuzhaninov]

On 2016-09-19 00:27, Olivier wrote:
> I have been using /dev/ad for years, but now I notice there is also the
> drivers /dev/ada. ad is not in the man anymore, but still working like
> it used to.

ad driver was removed and /dev/adX was an alias for /dev/adaY

I recommend to update all your fstab and other config, because this 
aliases was removed and FreeBSD 11 has no this legacy aliases.

See /usr/src/UPDATEING

> 20151011:
>         Compatibility shims for legacy ATA device names have been removed.
>         It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
>         and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
>         environment variables, /dev/ad* and /dev/ar* symbolic links.