Date: Sun, 23 Aug 1998 14:58:19 -0400 From: "Richard Reiner" <rreiner@fscinternet.com> To: freebsd-questions@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: SCSI tape crashes on 2.1.6 Message-ID: <199808231855.OAA11540@forest.fscinternet.com>
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P90 using a 1542CF driving an Archive DDS-1 DAT and 90m tapes. We're running FreeBSD 2.1.6 on this box (yes, it's time for an upgrade, but unless someone can tell me otherwise that won't solve this problem). Problem: We can write backups to tape without error. Reading backups back from tape results in a large variety of errors ranging from bad reads to system crashes. Termination has been double-and-triple-and-quadruple-checked to be correct. Have also tried a different SCSI host adapter -- BT946C -- with same results. Has our DAT drive just gone south? Or is this some bug in the scsi or st drivers in our old version of FreeBSD? BTW, this problem came to light when we switched from GNU tar to BRU (from www.estinc.com), thanks to BRU's superior error detection and tape verification features. EXCELLENT backup software -- buy it if you value your data! >From dmesg: 100 nSEC ok, using 150 nSEC aha0 at 0x330-0x333 irq 11 drq 5 on isa aha0 waiting for scsi devices to settle (aha0:0:0): "CONNER CFP2105S 2.14GB 2B4B" type 0 fixed SCSI 2 sd0(aha0:0:0): Direct-Access 2048MB (4194304 512 byte sectors) (aha0:2:0): "ARCHIVE Python 28388-XXX 5.28" type 1 removable SCSI 2 st0(aha0:2:0): Sequential-Access density code 0x13, 512-byte blocks, write-enabled (aha0:4:0): "TOSHIBA CD-ROM XM-5301TA 1535" type 5 removable SCSI 2 cd0(aha0:4:0): CD-ROM cd present.[325264 x 2048 byte records] Thanks, Richard -- . . . . . . . . . . . . . . . . . . . . . . . . . . . Richard Reiner, Ph.D. . rreiner@fscinternet.com ~~~~~~~~~~~~~~~~~~~~~ . http://www.fscinternet.com FSC Internet Corp. . +1 416 921-4280 . . . . . . . . . . . . . . . . . . . . . . . . . . . To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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