Re: SCSI drive replacement using SD?

From: Per Olofsson <magervalp_at_fastmail.fm>
Date: Tue, 04 Nov 2014 08:04:15 +0100
Message-Id: <1415084655.2584157.186776253.7E7981E2@webmail.messagingengine.com>
On Tue, Nov 4, 2014, at 12:17 AM, Justin wrote:
> I think it’s important to maintain perspective on the difference between
> the nominal performance limits of the bus and the real world performance
> of the system the bus is included in.  SCSI should’ve done 5MB/s but most
> of those 68k macs couldn’t do that even if the drive was just a box of
> RAM because of the realities of their overall bus architecture, clocks,
> driver quality, very weak multitasking in the kernel, who knows what
> else, etc.

Apple has a great KB article on the limits of their SCSI controllers:

  http://support.apple.com/kb/TA29470?viewlocale=en_US

-- 
  Per Olofsson
  magervalp@fastmail.fm

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Received on 2014-11-04 08:00:44

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