The first thing you'll need is the bptm log from the media server that 
was writing the backup.

Then look for <32> level messages.  That'll give you more information 
as to the type of error (not a multiple of 512 indicates network 
problems and i forget the other type off the top of my head).

If you get the error from the log, I'm sure it'll ring my bell.

HTH
-Tim

On Aug 21, 2005, at 6:25 PM, Eric Ljungblad wrote:

>
> 4.5 (mp6) Master and media server -
> 2003 Windows Master / media server -
> 4 DLT7000 Sun L1800
>
> Last 2 weekends with Full backups
> We have been getting -
>
> media manager - system error occurred(174)
>
> on our large Window Client backups -
> 2 Windows 2000 and
> 2 Windows 2003 Clients.
>
> Communication buffer and network buffers have always been
> 64k - NIC's and ports all 100 FD -
> Nothing has changed?
>
> Any Ideas ?
>
> Thanks
> Eric
>
>
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