> Where can we find the APAR and the description?  Thanks.

I have subscribed to the online Tivoli support at
http://www.tivoli.com/support/knowledgebase/
but if you can't/haven't registered, a call to Tivoli support should give
you the details.

But here they are anyway, copied from the Web site above:

Error Description:

Domino Release 5.09 on AIX made changes to memory management that adversely
affect the usage of any products which use the C API Toolkit.  TDP for
Domino is one of these products.  The customer may see the following when
trying to run domdsmc after upgrading their AIX Domino Server to 5.09:

0x01FE: This process "domdsmc" is unable to map the required amount of
shared memory. Please refer to the documentation on how to fix this.
ACD5130E Could not initialize the connection to Lotus Domino properly.
error=510

In Domino Server release 5.09 or higher (on AIX only) customers will need
to run a tool provided by Domino that modifies application binaries to use
two memory segments versus having had to use only one in prior releases up
to Domino 5.08.

Domino has provided a tool that allows for proper modification of these
binaries called dataseg.  This tool ships with the 5.09 Domino Server
release CD.

The recommended syntax for running dataseg to correct this problem for TDP
for Domino on AIX is:
dataseg -s /usr/tivoli/tsm/client/domino/bin/domdsmc

If your TDP for Domino install exists under a different path than the
default, please specify that directory instead, along with the domdsmc
executable as demonstrated above.

This applies to TDP for Domino running with any AIX Domino Server releases
that are 5.09 or higher.  This does not affect any releases prior to 5.09.

For any additional details regarding the change in memory segments or the
dataseg utility, please contact Lotus support.