Date: Wed, 31 May 2006 10:15:34 -0600 From: Scott Long <scottl@samsco.org> To: JoaoBR <joao@matik.com.br> Cc: freebsd-current@freebsd.org, Dan Nelson <dnelson@allantgroup.com>, Rod Person <rodperson@adelphia.net> Subject: Re: Current 7 U320 transfer rate only 3.300 MB/s Message-ID: <447DC126.2020903@samsco.org> In-Reply-To: <200605311311.38075.joao@matik.com.br> References: <200605301914.41981.rodperson@adelphia.net> <20060531150634.GD6982@dan.emsphone.com> <200605311311.38075.joao@matik.com.br>
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JoaoBR wrote: > On Wednesday 31 May 2006 12:06, Dan Nelson wrote: > >>In the last episode (May 30), Rod Person said: >> >>>I have and LSI u320 SCSI controller on a TYAN Thunder K8WE board with >>>and nvidia4 chipset. My boot message displays the following >>> >>>da0 at mpt0 bus 0 target 0 lun 0 >>>da0 <FUJITSU MAP3735NP 5605> FIXED Direct Access SCSI-3 device >>>da0 3.300MB/s tranfers, Tagged Queueing Enabled >>> >>>Why is my transfer rate so low? Anyone have an idea how I can correct >>>this? >> >>That may just be a display bug. Does "diskinfo -t da0" report >>reasonable speeds? If not, check your bios to see if you are forcing a >>slow speed, or try running "camcontrol negotiate da0 -R 160" to force >>320MB speeds (160 Mhz * 16 bit bus = 320MB). > > > > on releng_6 this is the same problem with atapicam > > cd0 at ata1 bus 0 target 0 lun 0 > cd0: <HL-DT-ST CD-RW GCE-8527B 1.02> Removable CD-ROM SCSI-0 device > cd0: 3.300MB/s transfers > > > but seems to work as usual > > Joćo > > Different bug. Scott
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