Date: Thu, 3 Oct 96 13:17:20 CDT From: bartling@cyrix.com (Steve Bartling) To: freebsd-hackers@freebsd.org, freebsd-questions@freebsd.org Cc: bartling@cyrix.com (Steve Bartling) Subject: Irwin ( exabyte 8200 ) and Freebsd 2.1.5 Message-ID: <9610031817.AA04092@mega.cyrix.com>
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Howdy, According to the Freebsd 2.1.5 documents, the st scsi tape driver has built in support for the Exabyte 8200. I have attempted to install this drive on SCSI ID 5. (Side note, the firmware revision is the generic 2618.) I have used the "expert" DOS software package that I downloaded from www.exabyte.com to test the drive under DOS. Other than a tendancy to report fairly high Rewrt and ECC percentages on the first couple of megabytes written, the drive passed all of the tests that this software provides. The Rewrt and ECC percentages will drop as you write/read more data from the drive. If you write/read enough data, the percentages average out to acceptable values. Is this typical behavior ? Oh well, I digress ... My real problem is with Freebsd 2.1.5. I have two tape drives installed. An Archive 2150s is present on SCSI ID 4. The 8200 is installed on ID 5. I created the proper devices in /dev using the "/dev/MAKEDEV st1" command. All of the proper devices were created. I rebooted just to make sure everything was clean and verified that Freebsd properly probed/detected the 8200 and attached it to the st1 interface. The Archive 2150s was also properly identified and was attached to st0. Now for the problem ... The Archive 2150s works fine. When I attempt to "tar -cvf /dev/rst1" the entire SCSI bus hangs, requiring a machine boot to clear the bus. I cannot use the st or the mt utilities to display status or set modes. When I attempt to do so, I get "Invalid Input/Output Error". Again, I can access the 2150s just fine. Hardware does not seem to be at fault since both drives are happy under DOS. Any clues ? - Steve Bartling email: bartling@cyrix.com
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