Date: Tue, 16 Mar 1999 23:55:47 -0800 From: Josh MacDonald <jmacd@CS.Berkeley.EDU> To: freebsd-hackers@freebsd.org Subject: SCSI Tape (HP SureStore T20) trouble Message-ID: <19990316235547.14559@helen.CS.Berkeley.EDU>
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I reported trouble with this tape drive under 3.0-RELEASE a while ago and was told to try 3.1, so I did. Now I am using 3.1-STABLE as of today. I'm still having trouble, but different trouble. The HP SureStore T20 uses a QIC-3220 format (Travan TR-5) minicartridge (10G uncompressed capacity). The manual says it has a sustained data transfer rate of 1M/s and a burst rate of 3M/s. sa0 at ncr0 bus 0 target 5 lun 0 sa0: <HP T20 3.00> Removable Sequential Access SCSI-2 device sa0: 3.300MB/s transfers And I can run dump, and the mt commands. 'mt status' reports: Mode Density Blocksize bpi Compression Current: 0x47 512 bytes 0 unsupported ---------available modes--------- 0: 0x47 512 bytes 0 unsupported 1: 0x47 512 bytes 0 unsupported 2: 0x47 512 bytes 0 unsupported 3: 0x47 512 bytes 0 unsupported --------------------------------- Current Driver State: at rest. I ran dump to see if it really works, and dump reports no errors, but there are console messages. DUMP: Date of this level 0 dump: Tue Mar 16 23:42:42 1999 DUMP: Date of last level 0 dump: the epoch DUMP: Dumping /dev/rda0s2a (/) to /dev/nrsa0 DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 26417 tape blocks. DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: DUMP: 26407 tape blocks on 1 volumes(s) DUMP: finished in 58 seconds, throughput 455 KBytes/sec DUMP: level 0 dump on Tue Mar 16 23:42:42 1999 DUMP: Closing /dev/nrsa0 DUMP: DUMP IS DONE The console reads: (sa0:ncr0:0:5:0): SPACE. CDB: 11 1 ff ff ff 0 (sa0:ncr0:0:5:0): ILLEGAL REQUEST asc:2c,0 (sa0:ncr0:0:5:0): Command sequence error (sa0:ncr0:0:5:0): unable to backspace over one of double filemarks at EOD- opting for safety and it rewinds the tape even though I opened the nrsa0 device (which supposedly does NOT rewind). I am able to restore from the dump, but it seems broken that it does not rewind. Also, the drive says it supports hardware compression, but 'mt status' says it is unsupported. Does anyone know whats the trouble with either of these problems? -josh To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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