Hi jeremy, howard use parameters db_file_name_convert and/or log_file_name_convert to accomplish that. They can map the actual controlfile contents ... Example: map /u00 to /u01 on standby site: alter system set db_file_name_convert = '/u00','/u01' scope=spfile; on primary site vice versa. alter system set db_file_name_convert = '/u01','/u00' scope=spfile; HTH Mathias -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of SHEEHAN, JEREMY Sent: Wednesday, February 04, 2009 5:56 PM To: Howard Latham Cc: oracle-l@xxxxxxxxxxxxx Subject: RE: standby That's a good question.... I've never had to do that before. All my standby db's were in the same format as my prod. I did a quick check on google, but couldn't find anything relevant... Sorry! Jeremy P Consider the environment. Please don't print this e-mail unless you really need to. -----Original Message----- From: Howard Latham [mailto:howard.latham@xxxxxxxxx] Sent: Wednesday, February 04, 2009 11:52 AM To: SHEEHAN, JEREMY Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: standby Thanks - That only works if the files are in the same place on the primary database. What if the layout if different.? 2009/2/4 SHEEHAN, JEREMY <JEREMY.SHEEHAN@xxxxxxx>: > Google = Good > > http://www.tiplib.com/138/create-standby-controlfile > > Jeremy > P Consider the environment. Please don't print this e-mail unless you really need to. > > -----Original Message----- > From: oracle-l-bounce@xxxxxxxxxxxxx > [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Howard Latham > Sent: Wednesday, February 04, 2009 11:41 AM > To: oracle-l@xxxxxxxxxxxxx > Subject: standby > > Oracle 11g > Redhat Linux, > We lost the controlfile from a standby its not THAT important but > whats the simplest way to rebuild it? > We can backup the primary control file to trace; > > > -- > Howard A. Latham > -- > //www.freelists.org/webpage/oracle-l > > > > > -- Howard A. Latham zn{i -- //www.freelists.org/webpage/oracle-l