this thread seems relevant to what i asked the other day: about changing around the devices inside my 6360. no one answered that query, so let me add it to this one:
Mike wrote: bus and gave it the ID of "0 ". My whole SCSI chain configuration looks like this: Original 2 gig HD � � � Bus 0, ID 0 CD-ROM � � � � Bus 0, ID 3 SCSI Zip drive Bus 1, ID 6 Maxtor 60 gig HD � � � Bus 2, ID 0 I left the jumper setting on the Maxtor as shipped to "cable select" and hooked the drive up to the "master" connector on the cable. Since the Install guide doesn't give much Mac info. I want to make sure this set-up is OK for allowing the drive to be bootable. My understanding is that this set-up should allow bootability because it ��is on it's own SCSI bus, whereas if it was sharing the same bus "0" as the 2 gig it would have to be set to "slave". Any reason to change this configuration? to this, Bruce says Bus and ID # on ATA drives are largely imaginary, and only reported as such because the ATA card is pretending to be a SCSI controller to the Mac. ATA and SCSI drives are considerably different beasts, and cannot be on the same bus. If you have an ATA cable that is stamped CS or Cable Select, or seems to have a LOT of wires, it's a cable select cable. If it looks like an ordinary 50-line ribbon cable, the only reason it's working is because it's the only device on the bus. If you add another drive to that bus you will need to set the master and slave jumpers correctly. However, if it ain't broke... mike asks Is it even possible for a SCSI drive and ATA to share the same bus? bruce replies no. >>>so my question, lobbed into this thread, is: my 6360 comes native with an IDE hard drive, a SCSI CD ROM drive, and floppie, internally. externally it has the usual mac SCSI port out back. what am I doing if I trade out these native devices inside the case, and instead put in an IDE DVD drive on the IDE ribbon, a SCSI hard drive on the SCSI ribbon, and leave the floppie in? will this work? if as bruce says, SCSI and IDE can't be on the same bus, then what is the structure of my 6360, internally? and what does it do if I trade out the native devices for my proposed substitutions? if i move my CD ROM drive and a CD burner out onto the external SCSI chain? how many buses does my 6360 have on it, and how many devices can go on each one? and will that SCSI hard drive be in a position to be bootable, if I put it where the IDE drive went inside the machine, but connected to the ribbon the CD ROM originally was expected to use? and conversely, if i put the DVD where the CD ROM was, and connect that DVD on the IDE ribbon that was expected to end in the original harddrive , will it confound the machine? Janet primarily asking Bruce Johnson <[EMAIL PROTECTED]> Subject: Re: SCSI and ATA/EIDE HDs coexisting In-Reply-To: <[EMAIL PROTECTED]> -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
