Date: 23 Jun 1999 01:54:15 +0200 From: naddy@mips.rhein-neckar.de (Christian Weisgerber) To: freebsd-scsi@freebsd.org Subject: Tape drive drops into state of refusal Message-ID: <7kp7n7$cmo$1@mips.rhein-neckar.de>
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Today, after a successful backup, my tape drive decided to refuse any
further read/write commands.
4.0-CURRENT (May 29).
sa0 at ncr0 bus 0 target 6 lun 0
sa0: <WANGTEK 51000 SCSI RVM7 5F5> Removable Sequential Access SCSI-CCS device
sa0: 3.300MB/s transfers
Quirk entry:
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
"51000*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_1FM, 0
}
(Yes, this is slightly modified from the one currently in the tree.)
The tape drive works.
Today, after a successful backup with dump, I inserted a new tape, and
any attempts to write data to the drive produced only this:
(sa0:ncr0:0:6:0): WRITE(06). CDB: a 0 0 28 0 0
(sa0:ncr0:0:6:0): ILLEGAL REQUEST csi:0,8,0,0
A read attempt didn't fare any better:
(sa0:ncr0:0:6:0): READ(06). CDB: 8 0 1 0 0 0
(sa0:ncr0:0:6:0): ILLEGAL REQUEST csi:0,8,0,0
# camcontrol reset 0:6:0
Reset of 0:6:0 returned error 0x6
And the problem persisted. Removing and reinserting the tape or another
tape didn't help either. Rebooting did. :-(
(Damn. For ten years SCSI has been pretty much plug and play for me. But
ever since I put that tape drive into the FreeBSD box I get the
impression I should have a copy of the SCSI specs on my desk.)
--
Christian "naddy" Weisgerber naddy@mips.rhein-neckar.de
carpe librum: books 'n' reviews <URL:http://www.carpe.com/buch/>;
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