> Dear specalist and customers,
> 
> I need some help for the TDP 2.2 Product of our Exchange Servers.
> We backed up our Information-Stores over a GB/Ethernet  tcp/ip connection
> with very bad performance and long durations.
> After some tunings we got an "unknown API-Error" Code 425.
> 
> But first some Hardwareinformations:
> We use Compaq-Server with four 450 MHz prozzessors, 4 GB Ram,
> GB/Eth.-card, Exhange 5.5 incl. SP4, Win NT 4.0 incl. SP 6a,
> TSM B/A Client 4.2.1.16, TDP 2.2 and in the Backend a Comparex Tetragon
> Disk-Subsystem.
> 
> To tune the performance we opened a problemrecord with IBM and changed
> some parameters (Buffersize from 1024 to 8192 and Buffers from 3 to 8).
> After this tunings we got the first time the "code 425" and we doesn 't
> got out of this Problem yet by the way of uesing GB/Ethernet.
> Does anyone have also bad Experiance with this Error ? 
> 
> IBM told us, that this problem is based on the Microsoft API-Interface.
> There should be an HRBACKUPREAD-Problem with filling up the Buffers with
> Datas as fast as it should be done.
> The time is probably  too long  and than it becomes a timeout followed by
> the unknown API-Error.
> Is there someone who can help us?
> May a lot of TDP users have the same, unexplained problem.
> It would be nice to here of you soon.
> 
> kindley regards
> 
> Wolf-Christian Lücke
> 
> K-DOI-44
> Volkswagen AG Wolfsburg
> Storage Management
> Windows Platform
> 
> Tel.: 05361/9-22124
> E-Fax:        05361/9-57-22124
> 
> E-Mail:       mailto:wolf-christian.luecke AT volkswagen DOT de
>