Hi SUN Managers,
my original posting was:
> Hi SUN Gurus,
>
> I have problems with a third-party disk (IBM 0663-E12) on SparcStation 5
> running Solaris 2.3 or 2.4.
>
> In case of heavy disk load I see the following messages on the console:
>
> /iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,8800000/sd@2,0 (sd2):
> Apr 19 12:15:59 zam092 unix: SCSI transport failed: reason 'timeout': retrying command
>
> ....
>
> Apr 19 12:17:39 zam092 unix: WARNING: /iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,8800000 (esp0):
> Apr 19 12:17:39 zam092 unix: Disconnected tagged cmds (2) timeout for Target 2.0
>
>
> The SCSI-Bus is terminated actively and has a length of 1-2m (less than 9inch).
>
> The disk has no problem in case of running on an SS1, SS2 or SS10
> under Sun OS 4.1.3.
>
> Any suggestions?
The problem was the tagged queuing of the drive, which is only used under
Solaris 2.x.
I turned it of via set scsi_options=0x178 in the /etc/system file.
Rebooting fixes the problem.
Many thanks to Kevin Sheehan,
Volker
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