I have a TSM 5.1.6.3 server on AIX 5.2.0.0 and the TSM client and TDP
Informix are on the same system. When I use COMMMETHOD TCPIP  with
TCPSERVERADDRESS 127.0.0.1 between the client and server I get some very
strange results. If the data is going to disk storagepool then I see good
performance. If the data is going direct to LTO tape (SCSI attached) then I
see 15-sec RecvW times between blocks of data. If I do the same thing with a
client on a different server over TCPIP, then I see good performance no
matter where the data goes.

If I change the COMMMETHOD to SHAREDMEM, then I get great results. I am
using TDP Informix and I was able to backup a 40GB database direct to LTO
tape in 16-minutes. The TSM API that came with the TDP Informix agent didn't
support SHAREDMEM, so I upgraded to the 5.1.6.0 API change to SHAREDMEM and
things took off.

Has anyone seen performance issues with TSM and AIX 5.2.0.0??


TIA,
Bill Boyer
"Some days you are the bug, some days you are the windshield." - ??