Date: Wed, 30 Sep 1998 01:14:32 +0200 From: Ollivier Robert <roberto@keltia.freenix.fr> To: current@FreeBSD.ORG, scsi@FreeBSD.ORG Subject: Re: ahc & CAM: strange diagnostic Message-ID: <19980930011432.B15508@keltia.freenix.fr> In-Reply-To: =?iso-8859-1?Q?=3Cxzp90j31010=2Efsf=40yggdrasil=2Eifi=2Euio=2Eno=3E=3B_f?= =?iso-8859-1?Q?rom_Dag-Erling_C=2E_Sm=F8rgrav__on_Tue=2C_Sep_29=2C_1998_?= =?iso-8859-1?Q?at_04:11:39PM_%2B0200?= References: <19980929082453.A328@nagual.pp.ru> <xzp90j31010.fsf@yggdrasil.ifi.uio.no>
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According to Dag-Erling C. Smørgrav :
> OK, that's it. I'm definitely dumping Quantum and Seagate and going
> for IBM instead.
To be honest with Quantum, my brand new Viking II is blazingly fast
compared to my trusty DCAS and supports the same # of transactions (64). My
4 GB DCAS runs at 9 MB/s max whereas the Viking is doing 13 MB/s.
I haven't tried the new 7200 rpm DDRS IBM drives but I guess they're good
too.
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-BETA #0: Sun Sep 27 14:53:13 CEST 1998
roberto@tara.freenix.org:/src/src/sys/compile/TARA
[...]
da0 at ahc0 bus 0 target 6 lun 0
da0: <QUANTUM VIKING II 4.5WLS 4110> Fixed Direct Access SCSI2 device
da0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing Enabled
da0: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C)
203 [1:09] roberto@tara:~> dmesg | grep "tagged openings"
(da0:ahc0:0:6:0): tagged openings now 63
--
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 3.0-BETA #0: Sat Sep 19 23:38:25 CEST 1998
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