Re: Adding SCSI devices to a live machine

[chuck <chuck@Yerkes.com>]

Might it make sense, in the kernel file to be able to specify that the
structure for the unit be allocated whether or not it is found
in auto-discovery?

sd4     at scsibus? target 4 lun ?  Initialize_the_sucker

Quoting Jim Rees (rees@umich.edu):
>   I suppose during the device discovery phase of the boot, structures are
>   allocated for each SCSI device found.  It is possible to add to these
>   structures during run-time?
> 
> Not currently.  Mach had a very useful feature in some of its device
> drivers.  If you tried to open a device that wasn't configured, the open
> routine would re-probe.  In most drivers it was about a two line change.
> This was added for pcmcia (now pc-card) but could be useful for your
> application as well.
> 
> I would find it very useful to be able to turn devices on and off without
> rebooting, especially pc-card devices.  In fact I consider OpenBSD to be
> useless for mobile/portable operation without this feature.