On Mon, 14 Feb 2005, Jon LaBadie wrote:
> The writer claimed that on a SCSI bus the lower ID numbers were given
> precedence (priority?), the effect of which was felt during heavy usage.
> Further, this effect could particularly be felt by tape drives with high
> SCSI numbers. During heavy total I/O on the bus they would lose their
> ability to stream more easily than if they had lower ID's.
I thought[*] 7 was the highest priority, and 0 the lowest (on a narrow
channel). Wide devices have an even lower priority: 15 to 8.
So you have in decreasing order of priority:
7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8
Gr{oetje,eeting}s,
Geert
[*] I'm not 100% sure about the actual order, but I'm sure there was a
discontinuity between narrow and wide devices, so only the above ordering
makes sense, unless I'm missing something.
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [EMAIL PROTECTED]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
