Date: Wed, 23 Sep 1998 08:01:58 -0500 (EST) From: Richard J Kuhns <rjk@grauel.com> To: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> Cc: current@FreeBSD.ORG Subject: Re: Can't write tape with -current kernel Message-ID: <13832.61766.654883.959811@moran.grauel.com> In-Reply-To: <199809222058.OAA09149@narnia.plutotech.com> References: <13831.49269.578934.271721@moran.grauel.com> <199809222058.OAA09149@narnia.plutotech.com>
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Justin T. Gibbs writes: > In article <13831.49269.578934.271721@moran.grauel.com> you wrote: > > sa0 at ahc0 bus 0 target 6 lun 0 > > sa0: <ARCHIVE VIPER 2525 25462 -007> Removable Sequential Access SCSI1 device > > sa0: 3.300MB/s transfers > > ... > > > Mode Density Blocksize bpi Compression > > Current: QIC-320 1024 bytes 16000 unsupported > > ---------available modes--------- > > 0: QIC-320 1024 bytes 16000 unsupported > > According to the old st driver's quirk entries, this drive can only > do QIC-120, QIC-150, and QIC-525. The CAM driver does not have this > information on hand, and relies on the user to specify a proper density. > Ken and I are looking at the best way to deal with these kinds of > issues without bloating the driver too much. In the mean time, > can you experiment with different densities (via mt) and see if this helps > your situation? > Unless it also goes under a different name, mt doesn't know about QIC-525 (I freely admit that I'm not a SCSI expert). I tried -120 and -150, but it didn't do anything at all that I could see. Here's a short transcript. moran:~# mt status Mode Density Blocksize bpi Compression Current: QIC-320 1024 bytes 16000 unsupported ---------available modes--------- 0: QIC-320 1024 bytes 16000 unsupported 1: QIC-320 1024 bytes 16000 unsupported 2: QIC-320 1024 bytes 16000 unsupported 3: QIC-320 1024 bytes 16000 unsupported moran:~# mt density QIC-525; echo $? mt: QIC-525: unknown density 1 moran:~# mt density QIC-150; echo $? 0 moran:~# mt status Mode Density Blocksize bpi Compression Current: QIC-320 1024 bytes 16000 unsupported ---------available modes--------- 0: QIC-320 1024 bytes 16000 unsupported 1: QIC-320 1024 bytes 16000 unsupported 2: QIC-320 1024 bytes 16000 unsupported 3: QIC-320 1024 bytes 16000 unsupported moran:~# tar -cvf /dev/rsa0 . ./ Src/ Src/xmartin.tzr tar: only wrote 0 of 10240 bytes to /dev/rsa0 moran:~# exit Substituting QIC-120 for the -150 above didn't change anything. -- Richard Kuhns rjk@grauel.com PO Box 6249 Tel: (765)477-6000 \ 100 Sawmill Road x319 Lafayette, IN 47903 (800)489-4891 / To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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