Date: Sat, 20 Nov 2004 08:23:15 -0700 From: Scott Long <scottl@freebsd.org> To: pgrunwald@comcast.net Cc: freebsd-scsi@freebsd.org Subject: Re: Still having trouble with tape on Dell 2450 Message-ID: <419F6163.8080807@freebsd.org> In-Reply-To: <111820041936.4640.419CF9D3000529E60000122022007354460B040E99029A9D099F@comcast.net> References: <111820041936.4640.419CF9D3000529E60000122022007354460B040E99029A9D099F@comcast.net>
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pgrunwald@comcast.net wrote: > I'm still having a little trouble with the Python Drive on a dell 2450. IT was acting really flaky and it turns out that Dell sent me an unterminated cable. I replaced with Dell part number 8459u. > > Drive is seen at boot: > dmesg > . > . > . > Waiting 15 seconds for SCSI devices to settle > aacd0: <RAID 5> on aac0 > aacd0: 52067MB (106633344 sectors) > sa0 at ahc0 bus 0 target 6 lun 0 > sa0: <ARCHIVE Python 06408-XXX 825B> Removable Sequential Access SCSI-3 device > sa0: 40.000MB/s transfers (20.000MHz, offset 32, 16bit) > > > mt status > Mode Density Blocksize bpi Compression > Current: 0x26:DDS-4 1024 bytes 97000 DCLZ > ---------available modes--------- > 0: 0x26:DDS-4 1024 bytes 97000 DCLZ > 1: 0x26:DDS-4 1024 bytes 97000 DCLZ > 2: 0x26:DDS-4 1024 bytes 97000 DCLZ > 3: 0x26:DDS-4 1024 bytes 97000 DCLZ > --------------------------------- > Current Driver State: at rest. > --------------------------------- > File Number: 0 Record Number: 0 Residual Count 0 > > camcontrol eject sa0 does eject the tape. > > mt rewind immediatly returns as does mt retension > > mt erase seems to permanently hang the system and I have needed to reboot to kill the process. > > dump seems to work: > dump -0u -a -L -f /dev/sa0 /home > DUMP: Date of this level 0 dump: Thu Nov 18 12:31:29 2004 > DUMP: Date of last level 0 dump: the epoch > DUMP: Dumping snapshot of /dev/aacd0s1f (/home) to /dev/sa0 > DUMP: mapping (Pass I) [regular files] > DUMP: mapping (Pass II) [directories] > DUMP: estimated 1489 tape blocks. > DUMP: dumping (Pass III) [directories] > DUMP: dumping (Pass IV) [regular files] > DUMP: DUMP: 1019 tape blocks on 1 volume > DUMP: finished in less than a second > DUMP: level 0 dump on Thu Nov 18 12:31:29 2004 > DUMP: Closing /dev/sa0 > DUMP: DUMP IS DONE > > I'm having trouble with restore: > > root@samba:/tmp/restore_test$ mt fsf 1 > root@samba:/tmp/restore_test$ restore rf /dev/sa0 > tape read error: Unknown error: 0 > > > I was using this page as my guide: http://www.freebsddiary.org/dump-restore.php > Any suggestions? > > Thanks, > P. Simple question.... did you rewind the tape after the dump? Scott
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