From owner-freebsd-scsi Wed Sep 6 10:25: 6 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from smtp1.andrew.cmu.edu (SMTP1.ANDREW.CMU.EDU [128.2.10.81]) by hub.freebsd.org (Postfix) with ESMTP id AAF3337B423 for ; Wed, 6 Sep 2000 10:25:04 -0700 (PDT) Received: from unix11.andrew.cmu.edu (UNIX11.ANDREW.CMU.EDU [128.2.15.15]) by smtp1.andrew.cmu.edu (8.9.3/8.9.3) with SMTP id NAA11801 for ; Wed, 6 Sep 2000 13:25:02 -0400 (EDT) Date: Wed, 6 Sep 2000 13:25:03 -0400 (EDT) From: Gregory C Schohn To: freebsd-scsi@freebsd.org Subject: new - uncooperative seagate hard drives Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org hi - I just bought a pair of 18GB HDs (a cheetah 10KRPM & a barracuda). I've been able to lay partitions down in dos & solaris86 - but I've had no luck even correctly reading the partition table. Each time, I get try reading the parition, fdisk complains of an invalid partition table. I've gone through fdisk many times now to build some partitions & each time the disk light flickers, & there are no complaints, but when I go back - the table is untouched (& still has an invalid magic). so - I saw that some people where having problems w/ newer scsi drives & adaptec controllers (I have a 2940U2W). One workaround was to disable the write cache. I tried doing this w/ camcontrol modepage da2 -m 8 -e -P [1234] & WCE never showed up in the editor (though it did when I just listed contents). When I added it, camcontrol complained w/ camcontrol: modepage entry "WCE" is read-only; skipping. interestingly the WCE flag is set to 0 (though on my ibm hd it is set to 1, so I was presuming that the values were flipped). the drives are pass1: Fixed Direct Access SCSI-2 device pass1: Serial Number LP7294430000114024TQ pass1: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing Enabled & pass2: Fixed Direct Access SCSI-2 device pass2: Serial Number LCC47151000021400@Y1 pass2: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing Enabled does anybody know if (a) these drives could be susceptible to the firmware bug that was discussed back in July or (b) if so, how can I edit the WCE flag? any help would be very much appreciated... thanks, Greg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message