Date: Thu, 23 Nov 2000 16:08:17 +1100 From: "Roger Wilco" <freebsd@m2mtechnology.com> To: <freebsd-hardware@FreeBSD.ORG> Subject: RE: Qantum DLT 7000 2150 tape unit Message-ID: <NEBBIONCAPPDEJNFIAEGCEIFCAAA.freebsd@m2mtechnology.com> In-Reply-To: <8vhs3b$1h04$1@kemoauc.mips.inka.de>
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>> I have recently set up a SCSI DLT tape unit on our FreeBSD file server to >> take care of backups but I can not get it to work. > > I hate that question, but you are quite sure you haven't screwed > up the SCSI bus configuration? Is this an external device? I'm not sure what you mean by the SCSI bus configuration. If you are talking about the way the devices are connected to the bus then the tape device is the only SCSI device. It is external and it is terminated. The internal connectors on the SCSI card are not connected to anything, but I don't think that the need to be terminated. If you are talking about the kernel configuration then I began by including the following lines: device ahc #Adaptec 2940 device scbus #base SCSI code device sa #SCSI tapes When that didn't work I added the following lines: device da #SCSI direct access (disks) device cd #SCSI CD-ROMs device pass #CAM passthrough driver The only other line that may have an effect is: device ch #SCSI media changers I will try adding this when I get the chance to reboot the machine. I read something about the CHANGER_MIN_BUSY_SECONDS and CHANGER_MAX_BUSY_SECONDS options which said that they should be set to 100 and 500 for tapes (default = 2 and 10). I changed the values using sysctl but it didn't have any effect. Are there any other kernel options that I should look at? I have been playing with this problem for two days and haven't gotten anywhere. Please help. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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