Log Config Filename and Location
ps-data-directory/searchserver/ search-ID/config/SearchLogConfig.properties
Example
/var/opt/SUNWportal/searchserver/mySearch/config/SearchLogConfig.properties
Logfile Location
ps-data-directory/searchserver/ search-ID/logs/
By default three files will be created - rdmserver.0.0.log, rdm.0.0.log, rdmgr.0.0.log