Re: Ultra 5/10 vs Ultra 60 for workstation.

Dave (from the UK) wrote:
Lest we forget we are talking SLOW IDE here as well.


I forgot that, I think its only ATA-33, which does mean there would be a *serious* performance disadvantage compared to SCSI. I think makes my mind up!

SCSI is faster, but don't overrate the performance difference. ATA has max 2 drives per channel, with one drive on a channel you get 33MB/s for that drive, which is definately not U320 performance, but more than many IDE hard disks more than two years old can manage (far more than the abominable 9.1GB Seagate drive originally shipped with the U10).

Plus the U10 has PCI, so you can get SCSI easily enough...


But PCI is the main reason to choose the U60:

It has a 64b PCI bus as opposed to the 32b bus on the U10. That means better throughput on your SunPCI II (not that that will be too noticeable), but also on the SCSI controller and it allows Gb Ethernet to actually approach the Gb mark. Even though it seems to get a better throughput out of the PCI bus than several newer PCs I own, the 32b PCI on my U10 is definately the limiting factor for I/O.
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