Gunther,

it's over. What solve the problem was the microcode D0IC_AAE, I received
friday and installed immediately. I guess it has been written expecially
form me ::) ... I hope it simply doesn't skip over all the errors!

Thank you, ciao

Mauro, STM
> Gunther,
>
> IBM is still investigating on my side. They came today a force a dump
> from the driver after loading a `special' microcode ... still waiting
for
> a solution. In fact, I am having problems even with brand new
cartridges.
>
> Mauro, STM
>
> > Mauro
> >
> > >
> > > H.G.,
> > >
> > > still having problems on two out of the four tapes.
> > >
> > > IBM changed on one of the two faulty drive:
> > >
> > >         - head      (nothing's changed)
> > >         - card-pack (nothing's changed)
> > >
> > > I changed:
> > >
> > >         - 3590 microcode from D0IC_994 to D0IC_A70 (nothing's
> changed)
> > >         - Atape driver downgraded 5.0.2 -> 4.6.2   (nothing's
> changed)
> > >
> > > IBM guys are scratching their heads, they run short on ideas ...
I'm
> busy
> > > copying the R/O cartridges and trying to restore what it's set as
> > > damaged. I wish I could go back to the old and secure 3590-1BA
> drives.
> > >
> > > I have two drive on each board (Wide/Fast-20 SCSI I/O Controller).
> Can
> > > this be a problem given the current throughput of the new drives?
> > >
> > > How many 3590-1EA do you have on a single SCSI channel and which
SCSI
> > > board do you have on the AIX box?
> >
> > We have wide differential SCSI adapters (type 4-C and 4-6). We have 4
> drives
> > on each SCSI-bus which is ian interim solution until the installation
> of
> > new server hardware. Our servers are RS/6000 590 models.
> >
> > IBM analyzed our errorlogs and came to the result that the errors
were
> caused
> > by three volumes which are not readable any longer. They stated that
> there
> > may be problems reading tapes with 3590E drives which were written
with
> the
> > old drives before upgrade!
> >
> > Gunther
> >
>
._______________________________________________________________________
> __.
> > |H.G.Borrmann                               |Tel.: (0761) 203-4652          
> >   |
> > |Rechenzentrum der Universitaet Freiburg|Fax:  (0761) 203-4643              
> >   |
> > |Hermann-Herder-Str. 10                     |email:                         
> >   |
> > |D79104 FREIBURG                    |borrmann AT ruf.uni-freiburg DOT de    
> >  |
> >
>
|_______________________________________________________________________
> __|
> >
> >
> >
> > >
>