Date: Tue, 29 Jun 2004 16:57:30 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@DeepCore.dk> To: "Fred N. Souza" <fred@freebsdbrasil.com.br> Cc: current@freebsd.org Subject: Re: Detection of SATA drives on 5.2.1-RELEASE-p8 Message-ID: <40E1835A.10804@DeepCore.dk> In-Reply-To: <20040628202050.GA731@blizzard.freebsdbrasil.com.br> References: <20040628202050.GA731@blizzard.freebsdbrasil.com.br>
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Fred N. Souza wrote: > Hello, > > We have a box running 5.2.1-RELEASE-p8 on a SATA disk. However, at > boot FreeBSD recognizes it as UDMA100, and I've been told the correct > should be something like UDMA150, but I don't know if that's true. > > Anyway, is there a way for me to tell whether it's running at 150 or > 100? The weird part is that apart from the name and addressing data, > FreeBSD recognizes the SATA disk just like the IDE we have on the very > same box. Attached is the dmesg for that box, note how both ad0 and > ad2 are shown as UDMA100.. You need to go -current to get the reported interface corrected. Anyhow, the SATA interface always runs at 150MB/s. However if your disk is not a native SATA disk but one with a PATA->SATA dongle on it, the speed between the dongle and the disk wil be whats reported and limitting your transferrates... -- -Søren
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