Re: sa(4): removing device entry

On Mon, Apr 05, 2004 at 12:02:57PM +1000, Lachlan O'Dea wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hello,
> 
> I've got a 5.2.1 system with a Quantum DTL7000 tape drive. I'm using 
> dump(1) to backup to the tape, and this generally works fine. However, 
> on two occasions I have seen a problem like this:
> 
> Apr  2 00:42:01 isis kernel: (ahc0:A:6:0): Sending WDTR 1
> Apr  2 00:42:01 isis kernel: (ahc0:A:6:0): Received WDTR 1 filtered to 1
> Apr  2 00:42:01 isis kernel: ahc0: target 6 using 16bit transfers
> Apr  2 00:42:01 isis kernel: (ahc0:A:6:0): Sending SDTR period 19, 
> offset 8
> Apr  2 00:42:01 isis kernel: (ahc0:A:6:0): Received SDTR period 19, 
> offset 8
> Apr  2 00:42:01 isis kernel: Filtered to period 19, offset 8
> Apr  2 00:42:01 isis kernel: ahc0: target 6 synchronous at 10.0MHz, 
> offset = 0x8
> Apr  2 00:42:01 isis kernel: (sa0:ahc0:0:6:0): Retrying Command
> Apr  2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): Unexpected busfree in 
> Data-out phase
> Apr  2 01:08:36 isis kernel: SEQADDR == 0x73
> Apr  2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): Unexpected Bus Free

You have a hardware problem.
Check SCSI cableing/termination and power connection to the drive.

-- 
B.Walter                   BWCT                http://www.bwct.de
ticso_at_bwct.de                                  info_at_bwct.de