On Fri, 21 Aug 1998, C Kane wrote:

> somebody wrote:
> >> >     More common: you turn of one of your disks/tapedrives. 
> >> >     Are you going to renumber the remaining ones?
> 
> Probably completely separate from the issue of PCMCIA devices:
> 
> Something I've long disliked about NetBSD is the numbering
> scheme used to name disks (and tapes and many other peripherals).
> 
> Why is the first disk called "sd0" and the second disk "sd1"
> regardless of SCSI ID or controller?  I think even a new naive 
> user would understand that a disk on SCSI ID 4 is called sd4.

Unit numbers do not necessarily imply addresses.