From owner-freebsd-hardware Fri Jan 17 13:47:55 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id NAA28616 for hardware-outgoing; Fri, 17 Jan 1997 13:47:55 -0800 (PST) Received: (from jmb@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id NAA28594; Fri, 17 Jan 1997 13:47:52 -0800 (PST) From: "Jonathan M. Bresler" Message-Id: <199701172147.NAA28594@freefall.freebsd.org> Subject: [Q] aah-2940uw, disk need low level format To: questions Date: Fri, 17 Jan 1997 13:47:51 -0800 (PST) Cc: hardware X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hardware@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk i have a dell dimension xps p90 with an aha-1540cp, (plug-n-pray disabled) seagate st32550n 2gb scsi disk. no other drives or scsi devices attached. works fine. time to upgrade to a faster scsi controller. installed an aha-2940uw. the machine hangs during boot immediately after printing the disk information. called adaptec support. after changing a number of controller parameters on the aha-2940uw, each followed by a reboot. adaptec says "you have to low level format". they state that the geometry used by the aha-1540cp is not compatible with the aha-2940uw because the aha-1540cp runs the scsi bus at 5 MB/s async and the aha-2940uw want to run the scsi bus at 10 MB/s sync. this is the first time that i have heard such a recommendation. does this match anyone's experience? jmb -- Jonathan M. Bresler FreeBSD Postmaster jmb@FreeBSD.ORG FreeBSD--4.4BSD Unix for PC clones, source included. http://www.freebsd.org/ PGP 2.6.2 Fingerprint: 31 57 41 56 06 C1 40 13 C5 1C E3 E5 DC 62 0E FB