Date: Fri, 19 Oct 2001 10:57:42 -0300 From: Fernan Aguero <fernan@iib.unsam.edu.ar> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: SCSI problem (parity error) Message-ID: <20011019105742.B1933@iib005.iib.unsam.edu.ar>
next in thread | raw e-mail | index | archive | help
[ please CC me since I am not currently subscribed to questions ] I have installed a new HP SureStore 40 internal DAT. It is an LVD SCSI device and so I bought an internal LVD cable with a terminator on one side. It is connected to the LVD connector of an Adaptec 29160 card. The other (SE) internal connector is free, but I usually have something connected externally on the LVD external connector. Even though the DAT SCSI ID (3) is mapped as a high speed (160 MB/s) device, the card BIOS sets it at 40 MB/s. If I connect an external SCSI CD-R the max speed drops to 20 MB/s, but this is OK, since it is clearly explained in the card specs. But even with no external devices connected I don't get more than 40 MB/s. Note: this is what the BIOS reports on probing the devices at startup. I haven't measured the actual speed. Without too much knowledge about this I am assuming that this has something to do with the following kernel messages: messages from the kernel log: > (probe0:ahc0:0:3:1): parity error detected in Data-in phase. SEQADDR(0x75) SCSIRATE(0x95) > (probe0:ahc0:0:3:6): parity error detected in Data-in phase. SEQADDR(0x77) SCSIRATE(0x95) > (probe0:ahc0:0:3:7): parity error detected in Data-in phase. SEQADDR(0x75) SCSIRATE(0x95) Any ideas about where to look further? Is the cable the problem? Or maybe I should try to work with some swithces in the DAT (there are some switch comfigurations for different OSes, including different unices, and I just left factory defults). Anyone using this drive with FreeBSD? System is a Pentium III, 600 MHz, 768 RAM, Adaptec 29160 OS is FreeBSD 4.3 (RELENG_4_3) Thanks in advance, Fernan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20011019105742.B1933>