Mac OS X Post: 23278

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Top Forums UNIX for Dummies Questions & Answers Mac OS X Post 23278 by John Philip on Thursday 20th of June 2002 03:51:57 AM

06-20-2002

Registered User

A kind of answer from Apple

Well, well.
First Apple (verbally) expressed concern for the matter - and claimed to have analyzed the logs to show 2 (two) problems:
1) A networking protocol problem
and
2) A problem with the file system.
--
After careful consideration, Apple has returned (in writing):
Basically the error is a NetInfo failure. That happens when NI hang
which is when the filesystem does.
They suggest that try it without both scsi cards and using ATA drive...
There have been a lot of complaints about SCSI hanging and a t one point
Adaptec stated the 39160 and 29160 were not compatible with MacOS X...
Since then they released newer drivers than the ones we included with OS
X server. So maybe worth a try to update them...
--
So - Apple has no part in the problem!
However, the reply raises a few other questions:
1) The server acted the same way, when the filesystem was on the internal disk for a period.
2) If the Adaptec drivers incl. in OSX at one point was 'denounced' by Adaptec, why has Apple not released som sort of technote to this effect?
3) '..maybe worth an update...' is just about as uncommitted an answer as possible.
4) Why should it take local Apple Support, European Apple Support and finally some bigbrain in Cupertino so long to figure it out, if the Adaptec problem has been known to all of them for a while?

Probably the filesystem will feel better by an upgrade - but there's no definite indication that this will remedy the problem

PS.: OSX server version 10.1.3 worked a lot better with only one breakdown a week as opposed to the versions on either side of this - that has resulted in breakdowns 3-4 times a day (on a good day) - which is also a bit worrying. Does the Adaptec drives act less faulty on 10.1.3 ? I wonder...

John Philip

sigh, sigh - and shame on Apple

John Philip

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aic

AIC(4)							 BSD/i386 Kernel Interfaces Manual						    AIC(4)

NAME

     aic -- Adaptec AIC-6260 and AIC-6360 SCSI driver

SYNOPSIS

     device aic

     In /boot/device.hints:
     hint.aic.0.at="isa"

DESCRIPTION

     The aic driver provides support for the Adaptec AIC-6260 and AIC-6360 SCSI controller chips.  Many systems that use these controller chips do
     not have a boot ROM and therefore cannot be booted from.

HARDWARE

     The adapters supported by the aic driver include:

     o	 Adaptec AHA-1505 (ISA)
     o	 Adaptec AHA-1510A, AHA-1510B (ISA)
     o	 Adaptec AHA-1520A, AHA-1520B (ISA)
     o	 Adaptec AHA-1522A, AHA-1522B (ISA)
     o	 Adaptec AHA-1535 (ISA)
     o	 Creative Labs SoundBlaster SCSI host adapter (ISA)
     o	 Adaptec AHA-1460, AHA-1460B, AHA-1460C, AHA-1460D (PC Card)
     o	 Adaptec AHA-1030B, AHA-1030P (PC98)
     o	 NEC PC-9801-100 (PC98)

SEE ALSO

     aha(4), ahb(4), ahc(4), cd(4), ch(4), da(4), intro(4), sa(4)

BUGS

     The driver does not work well with multiple devices on the SCSI bus.  The driver works well with devices like CDROMs and Tape drives.  The
     driver works not so well with disk drives.  The PC Card version appears to work better than the ISA version, but that may be due to differing
     levels of testing of the devices.

BSD
								 November 8, 2003							       BSD

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