Mohan,

You don't mention version, release levels of the TSM Server.
Also, I assume you are referring to Data Protection for
Exchange... since you mention "storage groups" in your problem
description. It is always good to include that type of information
when posting to this list.

Named pipes should work. It sounds like you have a configuration
problem. If the BA client on the same machine is working (for sure),
then make sure the communications settings are the same in the
Data Protection for Exchange DSM.OPT file.

The thing that has me wondering here is that you said in the
"TDP dsmerror.log".  If Data Protection for Exchange has an error
with the TSM API communications, it would appear in a file called
DSIERROR.LOG, not DSMERROR.LOG. So, I am suspicious.

I would go back and double-check your settings in the options files
and verify for sure that the BA client is actually using named pipes
(QUERY SESSION on the TSM Server will show the communications method
being used). If you continue to have problems, you should call IBM
support.

Thanks,

Del

----------------------------------------------------

> I have a problem with the TDP.
>
> I can connect to the tsm server using the tdp gui and able to see the
> storage groups.but if I start the backup by selecting the storage groups
> I get an communication rejection error.
>
> Following is the error in the TDPdsmerror.log
>
> 01/24/2004 03:52:32 sessOpen: Failure in communications open call. rc:
> -190
> 01/24/2004 03:52:32 ANS1029E Communications have been dropped.
> 01/24/2004 04:12:32 NpOpen: Named pipe error connecting to server
> INVALID HANDLE.
> NpOpen: call failed with return code:2 pipe name \\.\PIPE\TSMPIPE
> 01/24/2004 04:12:32 sessOpen: Failure in communications open call. rc:
> -190
> 01/24/2004 04:12:32 ANS1029E Communications have been dropped.
>
> No changes were made to the dsm.opt file and they r configured correctly
> Iam able to telnet to port 1500 of the tsm server.Also Iam able to do
> the backup using the tsm backup archive client in the same box.But not
> able to do backup with the tdp.