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Date:      Wed, 25 Oct 2000 19:48:56 -0500
From:      Gerd Knops <gerti@bitart.com>
To:        David Kelly <dkelly@hiwaay.net>
Cc:        Soren Schmidt <sos@freebsd.dk>, Thierry.Herbelot@alcatel.fr, stable@FreeBSD.ORG
Subject:   Re: IDE drives to avoid ? [was : Re: ATA problems (rehashed)] 
Message-ID:  <20001026004856.1660.qmail@camelot.bitart.com>
In-Reply-To: <200010260037.e9Q0bGS54307@grumpy.dyndns.org>
References:  <200010260037.e9Q0bGS54307@grumpy.dyndns.org>

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David Kelly wrote:
> Soren Schmidt writes:
> > The only drives I can recommed are IBM's, but beware the new DTLA
> > series are so fast that some old controllers can have problems with
> > them.
>
> Ditto. This is a system which has me reconsidering the wisdom of SCSI
> for my needs:
>
> CPU: Pentium III/Pentium III Xeon/Celeron (501.14-MHz 686-class CPU)
> Origin = "GenuineIntel"  Id = 0x673  Stepping = 3

>  
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,
> PSE36,MMX,FXSR,XMM> real memory  = 134201344 (131056K bytes)
> avail memory = 127221760 (124240K bytes)
> [...]
> ad0: 14649MB <IBM-DTLA-307015> [29765/16/63] at ata0-master using
> UDMA33
>
> Have seen bonnie report over 22 MB/sec on that drive and system.
> [...]

With these drives and a slightly patched ATA driver (to recognize the  
onboard promise chipset)

ad4: 29314MB <IBM-DTLA-307030> [59560/16/63] at ata2-master using UDMA100
ad6: 29314MB <IBM-DTLA-307030> [59560/16/63] at ata3-master using UDMA100

I get about 35 MB/sec.

Gerd


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