Hi , We have been facing issues with our rman backups in cluster & in non-cluster envoronments due to this "enq: WL - contention". The rman backup just hangs at this point. Generally this is happening when we execute some command like "alter system archive log current". This is a recommended command to execute as part of backup procedure. Can any one please guide me to some resource where i can find more information about this. Thanks, Ravi.M -- //www.freelists.org/webpage/oracle-l