In an attempt to tune our system (AIX 5.3, TSM 5.2.7) we changed the
following AIX parameters and now several archive jobs tend to just die
and hangout until they timeout.  

sb_max = 2097152
tcp_sendspace = 262144
tcp_recvspace = 262144
udp_sendspace = 131072
udp_recvspace = 131072
rfc1323= 1 

We made these changes trying get to better throughput on our gig
network.  (we are now working on 2 problems at once).  The gig nics are
set to auto_negotiate since AIX does not have a 1000/full setting.  The
network folks say everything is clean from their end.

I would like to resolve the hung condition first and then continue to
address the gig speed issues.  Does anyone have some ideas.  I can
remove the options I changed but on face value I believe they should be
set like this.

Any and all help is appreciated.

Have a nice day everyone.

Ralph