Date: Mon, 4 Apr 2011 17:19:33 -0400 From: John Baldwin <jhb@freebsd.org> To: Alexander Best <arundel@freebsd.org> Cc: Alexander Motin <mav@freebsd.org>, freebsd-current@freebsd.org Subject: Re: multiple issues with devstat_*(9) Message-ID: <201104041719.33844.jhb@freebsd.org> In-Reply-To: <20110404204316.GA11367@freebsd.org> References: <20110331223339.GA13682@freebsd.org> <201104010843.47367.jhb@freebsd.org> <20110404204316.GA11367@freebsd.org>
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On Monday, April 04, 2011 4:43:16 pm Alexander Best wrote: > On Fri Apr 1 11, John Baldwin wrote: > > This is probably due to the hard drives being IDE (really ATA) rather than > > SCSI. I agree this should show the pass devices. > > hmmmm...one could argue. the drives are ATA, however they are being associated > to the CAM subsystem. depends what one considers under "scsi interface". > personally i'd like to see them inder "scsi". No, SCSI is a transport protocol. Alexandar Motin's work added a new transport layer that speaks ATA and that is what ada uses. CAM does not send SCSI commands to adaX devices AFAIK. > > > otaku% iostat -t ide > > > tty cpu > > > tin tout us ni sy in id > > > 1 92 5 0 4 0 90 > > > otaku% iostat -t other > > > tty cpu > > > tin tout us ni sy in id > > > 1 92 5 0 4 0 90 > > > > > > ...what about md0? ada0? ada1? md0? > > > > md0 is a memory disk, it is neither SCSI nor IDE. However, -t ide (or even > > better, a -t ata), should show all of your other devices (adaX and cd0) along > > with their passX devices I think. > > so md0 should show up under -t other. i don't think there's a -t ata. Yes, I think we should possibly add a -t ata, possibly as an alias for -t ide. -- John Baldwin
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