>From Applelinks:
Adaptec SCSI cards do not function "reliably"
under Mac OS X
From Martin A. Totusek
I also have now confirmed this issue with APPLE
mangement, who have told me that now only ATTO
cards provide any real Mac OS X compatibility.
Rather ironic given that: "Traditional Mac OS and
Traditional Mac hardware is known as one of the
best Computing Platforms for SCSI support, and
SCSI support in OS X is quite weak and not
mature" (to quote a Seattle UNIX/Linux guru
friend of mine).
-Martin Totusek
Eric Ullman of Dantz' technical marketing
statement on Adaptec SCSI card and Mac OS X
compatibility:
"Ongoing testing by DantzLab has found that
Adaptec
SCSI cards do not function in a consistent,
reliable manner when used with Mac OS X. These
findings are supported by hundreds of reports
from customers who have experienced problems with
tape and CD-RW devices attached to Adaptec SCSI
cards.
"The problem, which affects all versions of Mac
OS X including 10.2 (Jaguar), is not application
specific. Rather, incorrect data is passed by the
SCSI card to and from any program communicating
with a SCSI device. The result may simply be an
inaccessible device, or worse, data corruption
can occur.
"Adaptec has been made aware of this problem, and
they are working on a solution. However, until
this issue is resolved, Dantz can no longer
recommend or support Adaptec SCSI adapters for
use with Mac OS X. These adapters include the
Adaptec 2906, 2930 (which is also the $49 Ultra
SCSI card {Apple Store BTO} option with the Power
Mac G4), 29160, 29160N, and 39160 SCSI
controllers.
"When Adaptec releases new software drivers that
provide reliable functionality in Mac OS X, we
will
reinstate support for Adaptec SCSI adapters at
that
time."
***
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