[Scottish] Re: parity errors on scsi tape drive

[Buddhika Karunatilake]

Dear Tam McLaughlin,

I am facing the SAME issue. I'm having an Adaptec
39160 SCSI card with an attached AIT100 tape drive.
When I start tape transfers, above mentioned parity
error occurs. 

I have tested the equipment and they seem to be
properly contacted. 

Using Redhat Advanced Server 2.1 

If you have solved this issue, pls. let me know the
solution.In addition, were you able to find a source
code implementation of the above driver. My kernel
version is 2.4.9-e.27smp and www.adaptec.com doesn't
seem to have the binary driver objects for this kernel
version. I thought of compiling it from source. But
couldn't find one. 

Thanks in advance

Buddhika



Tam McLaughlin  scottish at mailman.lug.org.uk
Wed Jun 25 08:51:00 2003

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Hi, I have started to get the following intermittent
error in the syslog when 
doing a backup to an external SCSI 20/40Gb DAT drive
which has sometimes 
caused the server to hang.

kernel: st0: Error 70002 (sugg. bt 0x0, driver bt 0x0,
host bt 0x7).
 Jun 24 20:30:27 moon 
kernel: (scsi1:A:6:0): parity error detected in
Data-in phase. SEQADDR(0x1a3)

I have checked the external SCSI cable and the cable
from the external SCSI
connector which is connected the the internal SCSI
card. I have also checked
the termination which is set to automatic (IIRC) and
the DAT drive has been 
terminated. 
The SCSI card is an adaptec AIC7899 ultra160 wide with
an HP 20/40 Gb DAT 
drive running Linux Mandrake 8.1

I have searched around and not found much on this
apart from the fact that it 
could be a cable problem.

Does anyone have any ideas or suggestions about this?





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