From owner-freebsd-scsi  Tue Dec 22 13:38:42 1998
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From: "Johan Granlund" <johan@granlund.nu>
To: "Kenneth D. Merry" <ken@plutotech.com>
Date: Tue, 22 Dec 1998 21:32:14 +0100
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Subject: Re: Problem with SCSI-bus and high diskaccess?
CC: freebsd-scsi@FreeBSD.ORG
In-reply-to: <199812210302.UAA94802@panzer.plutotech.com>
References: <XFMail.981220221957.asmodai@wxs.nl> from Jeroen Ruigrok/Asmodai at "Dec 20, 98 10:19:57 pm"
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> > Never had problems with Quantums before...
> 
> Then you've probably never pushed them very hard.  I'm personally curious
> to see whether their newer drives (e.g. Atlas III, Atlas IV, Atlas 10K)
> have the same sorts of problems that their older drives did.  I'm
> certainly not willing, however, to spend any money to find out. :)

And the answer is...Yes:(

My Atlas II failed and got replaced with a Atlas III:
da1: <QUANTUM QM39100TD-SW N1B0> Fixed Direct Access SCSI-2 
device 

It starts to reduce tags at 36 (da1:ahc0:0:8:0): tagged openings now 36) 
,the same as the Atlas II and mine is now at 2 tags.

The following patch fixes this:
{
	/* Reports QUEUE FULL for temporary resource shortages */
	{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" },
	/*quirks*/0, /*mintags*/24, /*maxtags*/32
},

/Johan
> 
> Ken
> -- 
> Kenneth Merry
> ken@plutotech.com
> 
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___________________________________________________________

Internet: johan@granlund.nu

I don't even speak for myself

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