On Wed, 28 Sep 2005, Mike McCarty wrote:
> Alvin Oga wrote:
>
> [snip]
>
> > - do NOT put a tape drives on the same (ide) cables as disks
> > - do NOT put disk ond cdrom/dvd on the same (ide) cables
>
> [snip]
>
> Umm, why not put hard disc and CDROM drive on same ATA cable?
cdroms are typically ata-33
disks are typically ata-100 or ata-133
- the timing on the cable is different sized signals ( pulse
widths ) and different loads/terminations... blah.. blah...
whenver the disks does stuff ... it will try to talk at 133MB/sec
and if the cdrom is smart enough, it'd will say, hey
w----h----a----a----b----o----u----t slowing down the disk,
which the system says go away, it aint for you ( cdrom )
slowly releasing the disk interrupt again
> I agree that it is bad practice to make a hard disc a slave to
> a CDROM drive
ever wonder why that was dell's decault config for some systems ??
where cdrom is hda and disk is hdb
c ya
alvin
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