On Sat, 16 Jan 1999, Petter Adsen wrote:
> I recently set up a machine with an IBM DGVS09U connected to a Tekram
> DC-390F. The motherboard is an Asus P2B-D with two P-II 400Mhz. Once in
> a while, I see the following error messages.
>
> Jan 15 17:42:52 eon kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return
>code = 28000002
> Jan 15 17:42:52 eon kernel: extra data not valid Current error sd08:01: sns = 70 4
> Jan 15 17:42:52 eon kernel: ASC=44 ASCQ= 0
Means INTERNAL TARGET FAILURE.
> Jan 15 17:42:52 eon kernel: Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00
Sense Key 4 means HARDWARE ERROR.
> 0x00 0x18 0x00 0x00 0x00 0x00 0x44 0x00 0x01 0x00
Field replaceable unit = 1 means that a device specific mechanism or unit
has failed.
That's all what these 16 bytes of sense data can tell us about the
problem. But, in fact, the device wanted to send 15 additionnal bytes of
information, probably vendor specific. With all the sense data returned by
the device and the full documention of the vendor specific sense infos, it
would be perhaps possible to understand what happened to the device. But
since Linux provides a 16 bytes buffer for sense data and that such a doc
is probably hard to obtain from IBM, that's just double-dreaming.
> Jan 15 17:42:52 eon kernel: scsidisk I/O error: dev 08:01, sector 2
>
> They seem to occur fairly infrequently - mostly about once or twice a
> week, although I have seen them several times in one day. I have seen
> this with kernels 2.1.125 up to 2.2.pre-5. The cable has been replaced,
> and should be of good quality. The disk has more than adequate cooling.
>
> How serious is this? Should I return the disk? Any help would be greatly
> appreciated.
Based on the sense data received, we can think that the problem is due
to some failure internal to the drive.
Regards,
Gerard.
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