** Reply to note from Adam Hewitt <[EMAIL PROTECTED]> 16 Oct 2002 12:18:14 +1000
> And I have been doing computer technician work for about 8 years now and > I have always placed the CD ROM on the secondary IDE channel. The reason > for this (and I admit I have never done any testing myself to find out > if this is true) is that the IDE channel will default to the slowest > speed on the ribbon cable, so if you have a hard drive and a cd drive > located on the same IDE ribbon cable it will slow your hard drive speed > down. > > If you think this is incorrect or have actually run tests regarding this > please let me know. Adam, on a perhaps related issue, I have been told it's a 'bad idea' to have a slow device such as a scanner on one SCSI buss, as, it will bring the whole SCSI chain to the lowest common speed. I have a single AHA2940UWP running three chains: external narrow: HP scanner and Yamaha CDRW internal wide: 2 UW HDs , internal narrow: two narrow devices: CDROM, DAT. I was told 'bad idea, get a second SCSI controller for scanner' so, one day, I run some HD benchmarks, as is, with all stuff working; then, progressively, I removed everything down to the single HD. interestingly, the HD benchmarks didn't vary, regardless so, I still only use a single SCSI controller. of course, IDE isn't SCSI, and, YMMV, etc Voytek Eymont SBT Information Systems Pty Ltd http://www.sbt.net.au/links/ phone +61-2 9310-1144 fax +61-2 9310-1118 -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
