Date: Mon, 23 May 2005 14:47:21 -0700 From: Benjamin Keating <motionsiren@gmail.com> To: freebsd-questions@freebsd.org, rsmith@xs4all.nl Subject: Re: Tuning Hard Disks Message-ID: <781e2bc0050523144733827b78@mail.gmail.com> In-Reply-To: <20050523205601.GA11447@slackbox.xs4all.nl> References: <781e2bc0050523111214a8ff5@mail.gmail.com> <20050523205601.GA11447@slackbox.xs4all.nl>
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Thank you. This is exactly what I was looking for. How did you learn about these tools? From the pages i've read (most of) the handbook, I didn't see it mention them. On 5/23/05, Roland Smith <rsmith@xs4all.nl> wrote: > On Mon, May 23, 2005 at 11:12:59AM -0700, Benjamin Keating wrote: > > Hey all, > > > > I'd like to tweak my drives / view there current configurations. I get > > really slow xfers from two machine in the same, quite, LAN (both > > running FBSD 5.4 with good Intell Pro100 NICS). Im not sure if DMA is > > enabled or not so I'd like to start with figuring out what to use to > > view this info. Anything like hdparm? >=20 > Assuming you have ATA drives, do the following (as root) >=20 > run 'atacontrol list' to see which channel number the drive is on. Then > try 'atacontrol mode N', where N is the channel number. This wil give > you the current transfer mode of the drive. You can also use atacontrol > to set the mode. See the manual page. >=20 > You can see if DMA is enabled with 'sysctl hw.ata.ata_dma'. >=20 > Roland > -- > R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain tex= t. > public key: http://www.xs4all.nl/~rsmith/pubkey.txt >=20 >=20 >
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