John wrote.
>Here's what I'm getting from a Fujitsu 15K SCSI, a Quantum Atlas 10K SCSI >and an external Maxtor Firewire (5400 rpm) using Hard Disk Speedtools: > >15K Fujitsu SCSI: Read = 49.841 MB/sec Write = 35.532 MB/sec >10K Quantum SCSI: Read = 32.108 MB/sec Write = 31.907 MB/sec >Maxtor Firewire : Read = 15.651 MB/sec Write = 13.023 MB/sec snip I am running on a beige G3 and the PCI bus runs at 33 mhz, the same as pci Macs, IIRC, and the motherboard bus speed is 66mhz instead of 50, but I think the pci bus is the limiting factor, after the drives themselves . I have an IBM 80G 7200 rpm hooked to a AHard ATA 133 card and am getting the approximate transfer rates according to LaCies TimeDrive application: The drive and results are at home, but the approximate transfer rates are: Read 41 MB/sec and Write 39MB/sec For these transfer rates I spent $170 for the combo. SCSI does have it's place, but with speeds like the above, all but the most mission critical requirements should be fine with IDE. The problem with drive size limitations on ATA is, iirc, on ATA 66 and below, you can not use drives larger than 130GB. With ATA133, I think you can go to 4TB(Terabytes) theoretically. HTH, and sorry for the numbers from a beige G3, but I think they are relevant to this thread. Len -- 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
