Date: Fri, 15 Apr 2005 08:34:38 -0600 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Christian Robottom Reis <kiko@async.com.br>, AIC7xxx Mailing List <aic7xxx@freebsd.org> Subject: Re: 2940A failing mt operations with Medium Error Message-ID: <41D76B9E487CACA46E899923@caspian.scsiguy.com> In-Reply-To: <20050415132335.GA11591@www.async.com.br> References: <20050415132335.GA11591@www.async.com.br>
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> Hello there, > > We're having a problem with our SDT-9000 DDS-3 tape drive, which is > attached to a rather puny 2940A. We had it installed on a little Pentium > MMX and it was working fine, but since moving it last week to a more > modern machine, we've been getting error on all mt operations. The > kernel complaint is below. This is what I'm running: > > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.3.9 > <Adaptec 2940A Ultra SCSI adapter> > aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs > Vendor: SONY Model: SDT-9000 Rev: 0601 > Type: Sequential-Access ANSI SCSI revision: 02 > st: Version 20040102, bufsize 32768, max init. bufs 4, s/g segs 16 > > The messages below indicates a Medium Error/Cartidge fault, but no > matter if I try with a new cartridge or old, the same error ensues. The timeout messages from the ahc driver indicate that the tape drive is failing to complete a transaction that is in the disconnected state. This often happens if the tape drive is stuck in a retry loop trying desparately to either read or write data and thus neglects to complete a transaction before the OS command timeout fires. You might try running a cleaning cartridge through your drive. -- Justin
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