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SubjectRe: which is it ncr53c810 or ncr53c810a?

810A
----

Your problem doesn't look like an SCSI transport error to me. Any SCSI
controller will probably not give better result.

Your device does not like some SCSI command and returns CHECK CONDITION
status, then returns SENSE DATA that are passed to the application
client.

> CDB: 52 01 00 00 00 FF 00 00 1C 00

52 -> READ TRACK INFORMATION.
TRACK BIT=1 TRACK NUMBER=0xff -> track number of the invisible track
ALLOCATION LENGTH = 0x1C = 28 which looks correct for the size of the
response.

The SCSI command seems correct to me. But given the value of byte 15
(0xC0) of the SENSE DATA, the device wants to tell you about the field
stated invalid with SENSE DATA bytes 16 and 17, but infortunately only 16
bytes are displayed in the trace instead of 18 as it is usual. So, we will
not know.

I would suggest you to report the problem to 'cdrecord' maintainers or to
HP support.

Gerard.

On Sun, 1 Oct 2000, Joe wrote:

> Hi,
> I have been troubleshoting some scsi errors that I have been
> recieving, and noticed something weird. In my proc/pci my controller
> card is identified as (I know obsolete).
> -------
> Bus 0, device 18, function 0:
> SCSI storage controller: NCR 53c810 (rev 18).
> Medium devsel. IRQ 9. Master Capable. Latency=64. Min
> Gnt=8.Max Lat=64.
> I/O at 0x6800 [0x6801].
> Non-prefetchable 32 bit memory at 0xe4000000 [0xe4000000].
> -------
> I then looked in the /proc/scsi/ncr53c8xx/0 file and it said
> -------
> General information:
> Chip NCR53C810a, device id 0x1, revision id 0x12
> IO port address 0x6800, IRQ number 9
> Using memory mapped IO at virtual address 0xc8902000
> Synchronous period factor 25, max commands per lun 32
> ---------
> So which is it? An 810 or 810A? Also sometimes I get the following
> error when writing cdr's
> --------
> cdrecord: Input/output error. read track info: scsi sendcmd: retryable
> error
> CDB: 52 01 00 00 00 FF 00 00 1C 00
> status: 0x2 (CHECK CONDITION)
> Sense Bytes: 70 00 05 00 00 00 00 12 00 00 00 00 24 00 00 C0
> Sense Key: 0x5 Illegal Request, Segment 0
> Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
> Sense flags: Blk 0 (not valid) error refers to command part, bit ptr 0
> (not valid) field ptr 0
> --------
> The drive is an HP 9200i, any ideas? The drive is terminated and is the
> only drive on the scsi bus. The strangest thing is that I have set the
> scsi speed to Fast-5 Mb as fast 10 increases the frequency of this
> error, and when I do a modprobe -a ncr53c8xx it spits out it is fast-10
> and then when I do a modprobe -a sr_mod it detects it is a Fast-5. Is
> anyone else using the HP 9200i scsi drive? I don't think that it is a
> scsi termination issue or cabling.
>
> --
> Joe Acosta ........
> home: joeja@mindspring.com

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