Good Morning All, I was hoping someone here can point me to pertinent documents which address (DW). I know there are tons of online docs via google or metalink but was wondering if people her had their own favorites. Im particullary interested in nutshell concepts of: 1 reasonable maximum datafile sizes & physical disk striping 2 getting data from prod to dw 3 various partitioning 4 stratigies for backup + recovery Thanks Bob -- "Oracle error messages being what they are, do not highlight the correct cause of fault, but will identify some other error located close to where the real fault lies." -- //www.freelists.org/webpage/oracle-l