SUMMARY: HP 35480 DAT drive on Sparc 2 problems

From: Chris Mackerell (chris@bcl.co.nz)
Date: Tue Oct 20 1992 - 02:16:14 CDT


My original post...
>
> Hi,
>
> I've got a problem with a Sparc 2 with a HP 35480 DAT drive connected.
> (SunOS 4.1.2).
>
> There systems is reporting many
>
> "Target 4 now synchronous at 4MB" messages (target 4 is the DAT drive).
>
> When writing a tape this happens once at the start, but when reading
> a tape the system seems to generate zillions of them, bogging down
> system performance.
>
> Has anyone else experienced this? Better yet, have you found how to
> fix it :-)
>
> Cheers,
>
> Chris

Thanks to:

Eckhard.Rueggeberg@ts.go.dlr.de
leideck@pi3.informatik.uni-mannheim.de (Wolfgang Leideck)
paulg@csd.unsw.OZ.AU (Paul Gillis)
ivan@fac.anu.edu.au (Ivan Angus - ne Dean)
"(Cengiz Oezcan-Barlach)" <coez@tet.uni-hannover.dbp.de>
Jonathan Corbet <corbet@stout.atd.ucar.EDU>

The real solution seems to be to upgrade to 4.1.3 or failing that apply
patch 100484-01 which at least suppresses the messages.

We have applied the patch and all appears to be well.

Many thanks,

Chris

-- 
    _     _
 / /_) / /   / /  / Chris Mackerell <chris@bcl.co.nz> [a/h chris@owdjim.gen.nz]
/ /_) / /_  / /_ /  Ph: +64 (4) 801-6716  Fax: +64 (4) 385-2752
Business Computers Ltd, Box 3236, Wellington 6000, NEW ZEALAND.



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