Updates/Writes to the file during the O/S copy process, possibly, makes = the copied file inconsistent. Waleed -----Original Message----- From: Guang Mei [mailto:gmei@xxxxxxxxxx] Sent: Friday, June 25, 2004 1:03 PM To: oracle-l@xxxxxxxxxxxxx Subject: RE: Hot Backup Theory Revisited: Why OS copy of control file won't work? Guang > -----Original Message----- Guang, Under normal circumstances yes, but the control file has to be a "alter database backup controlfile . . .", not a OS copy. Mike -----Original Message----- From: Guang Mei [mailto:gmei@xxxxxxxxxx] Sent: Friday, June 25, 2004 11:17 AM To: oracle-l@xxxxxxxxxxxxx Subject: RE: Hot Backup Theory Revisited: I am trying to understand: Is it true that if the copy of control file (just an OS copy) is done = AFTER issuing ALTER SYSTEM ARCHIVE LOG CURRENT; then no earlier (than the log switch) archive log is needed? We still = need the archive logs generated during tablespace backup process. Guang=20 ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------