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?

Mauro, STM
> Hello,
>
> we see exactly the same problems and are realy very dissatiesfied!
> Those drives had been told us to be comaptible with the 3590!!!!
> Now we have problems to read our old tapes. Forget archive with
> IBM tapes.
>
> H.G.Borrmann
>
._______________________________________________________________________
__.
> |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
 |
>
|_______________________________________________________________________
__|
>
>
>
> >
> > Dears,
> >
> > upgrade done 2 days ago, with the following packages:
> >
> >         atldd: 4.0.7
> >         Atape: 5.0.2
> >         3494 Library Manager Code: 521.17
> >
> > everything apparently was fine. But the next night 20 cartridges had
I/O
> > errors and were set in ReadOnly access mode. Last night other 22,
today 6
> > ... The errpt report "BAD MEDIA" and Atape sometimes crash dump!
> >
> > +++
> > Description
> > TAPE OPERATION ERROR
> >
> > Probable Causes
> > TAPE
> >
> > User Causes
> > MEDIA DEFECTIVE
> > DIRTY READ/WRITE HEAD
> >
> >         Recommended Actions
> >         FOR REMOVABLE MEDIA, CHANGE MEDIA AND RETRY
> >         PERFORM PROBLEM DETERMINATION PROCEDURES
> > ---
> >
> > IBM technicians say that, it might be related to the fact that those
> > tapes were written at 128 tracks before (never had an error in 10
months
> > before!).
> >
> > AUDIT VOLUME on those cartridges reports NO Errors!
> >
> > Did anybody of you experience such problem?
> > Am I using a too recent Atape code?
> >
> > Thank you
> >
> > Mauro, STM