Date: Mon, 9 Aug 2004 16:11:07 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Mark <admin@asarian-host.net> Cc: freebsd-questions@freebsd.org Subject: Re: Only WDMA2? Message-ID: <20040809231107.GA92068@xor.obsecurity.org> In-Reply-To: <200408092106.I79L6HGV003922@asarian-host.net> References: <200408092106.I79L6HGV003922@asarian-host.net>
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--oyUTqETQ0mS9luUI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 09, 2004 at 09:06:18PM +0000, Mark wrote: > Dear Sirs: >=20 > In my FreeBSD 4.9R server, I use an ARAID99 1000L RAID system. However, it > only runs at "WDMA2": >=20 > Aug 9 21:08:36 asarian-host /kernel: ad0: 39205MB <ASI ARAID99 1000 Rev > 2.5> [79656/16/63] at ata0-master WDMA2 >=20 > WDMA2 only offers 16 MB/s, whereas ATA133 of course, offers 133 MB/s. The > question is, is there a reason FreeBSD only uses WDMA2 for this device? (= it > contains two MAXTOR 40G ATA133 disks, connected to an ATA133 IDE port as > single master). >=20 > Second question, subsidiary, can I force a higher mode than WDMA2? (like > UDMA 133). >=20 > Much obliged, Check the cable..perhaps you only have a 40-pin cable instead of the 80-pin cable you need for higher speeds. Kris --oyUTqETQ0mS9luUI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (FreeBSD) iD8DBQFBGASLWry0BWjoQKURAsfHAKDeJaAy7N0cqedMbEZmLlULQ/JqmgCfbD7x SSTgaH1BmvbQzY+WFEw9eh4= =KQ3M -----END PGP SIGNATURE----- --oyUTqETQ0mS9luUI--
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