Envirnment: OS: IBM AIX INFORMIX 11.10
To change the size of the physical log you first need to know the dbspace name. This can be found in the onconfig file: onstat -c | grep PHYSDBS PHYSDBS physdbs # Location (dbspace) of physical log
The AIX command to change the size is: onparams -p -s size -d dbspace -y
ie: onparams -p -s 511000 -d physdbs