Re: Two SCSI bus question...

becka@rz.uni-duesseldorf.de
Tue, 9 Dec 1997 15:20:17 +0100 (MET)

> The topic of having multiple SCSI buses has surfaced before, but
> my curiousity is how the /dev/(scanner) is assigned to a device.
> SCSI disks are simple, they're assigned in the order that they
> are detected (unless configured otherwise in the kernel). But,
> my scanner device seems to waffle around depending on whether or
> not some other devices are turned on/off at boot time. Any ideas???

All detected devices are assigned a raw-device in the order in which they
are detected. Scanning the busses goes dev-id first, then bus-id.

Thus you first get all devices on the first bus, then all on the second,
each in order of the SCSI IDs.

Thus your scanner wanders whenever a device that is below it in that ordering
scheme is there or not.

CU,Andy

-- 
Andreas Beck              |  Email :  <becka@sunserver1.rz.uni-duesseldorf.de>



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