Date: Fri, 17 May 2013 10:10:36 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Zaphod Beeblebrox <zbeeble@gmail.com> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: tape (sa0) on sparc64 ? Message-ID: <alpine.BSF.2.00.1305171009070.58048@wojtek.tensor.gdynia.pl> In-Reply-To: <CACpH0Mcass3ONxhFw5mRrQ1K931gxaxBZgo45_%2BynLrrbm4DUw@mail.gmail.com> References: <CACpH0Mcass3ONxhFw5mRrQ1K931gxaxBZgo45_%2BynLrrbm4DUw@mail.gmail.com>
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> 1: 0x26:DDS-4 variable 97000 DCLZ > 2: 0x26:DDS-4 variable 97000 DCLZ > 3: 0x26:DDS-4 variable 97000 DCLZ > --------------------------------- > Current Driver State: at rest. > --------------------------------- > File Number: 0 Record Number: 0 Residual Count 0 all fine. > > However, attached to either controller (after a reboot of the machine and a > powercycle of the drive), I get: > > [1:25:325]root@run:/home/foo> dd if=/dev/sa0 of=tape5 > dd: /dev/sa0: Input/output error > 0+0 records in > 0+0 records out > 0 bytes transferred in 0.002930 secs (0 bytes/sec) > > ... which is a return code of '1' and no messages on the console... > > I have, before you ask, tried "bs=10k" and 20k ... but I believe this > command should run by itself fetching the first 512 bytes of each block --- wrong. you have to specify proper block size or multiple of it. if you don't remember block size just try. I am not sure (not used tape for a long) but requesting larger block that is available should work too. if you used dump(8) then block size is most probably 32kB. try restore(8) or tar.
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