Hello,

We have Unix master (Solaris 2.6) with DataCenter 3.2 patch 645. Our
robot is STK 9710 with 5 DLT7000 drives in it.

We had a lot of cleaning requests until the microcode was upgraded to
version 106. Since then we have much less cleaning (by factor of ~5),
but many more 84 errors (media write error), and it seems also that the
backups are slower (could be from the many retries).

I considered asking our H/W support to downgrade the microcode, but now
I'm not sure. I think it should be reported to STK ASAP.



        Miriam


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Miriam Ben-Haim                 E-mail: miriam AT technion.ac DOT il
 Unix Systems                    Phone : +972-4-8292177
 Taub Computer Center            Fax   : +972-4-8236212
 Technion - Israel Institute of Technology, Haifa 32000, ISRAEL

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

On Thu, 8 Nov 2001 kkadams AT mmm DOT com wrote:

>We are running Netbackup 3.4 Datacenter on a Windows 2000 server
>
>We have StorageTek L700 with DLT7000 tape drives.
>
>For some time we were running at firmware version 95 on the tape drives. We had
>issues with the drives raising invalid cleaning messages.
>
>We then upgraded to firmware version 106 on the tape drives. This fixed our
>invaled cleaning flags but caused backup performance to drop significantly.
>
>So we backed out our firmware change from 106 to 95.
>
>We are now getting and abnormally high number of Media errors (status 83).
>
>Can anyone offer a step by step way to determine the cause of status 83 errors?
>
>
>Question #2: Is anyone running with Windows 2000 Server service pack 2?
>
>
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