RE: Hot Backup Theory Revisited:

Thanks everybody,

After I have backed up all the tablespaces I issue an ' alter database
backup controlfile to trace'

I then recreate the controlfile using the SQL.

I have to do it this way as the database name and file structure names
change slightly.

Mike the idea that it might already be in backup mode could be a good one.
We do get alarms if our tablespace our left in Backup mode but this now
seems the only logical explanation.

Stephen.
 

-----Original Message-----
From: Khedr, Waleed [mailto:Waleed.Khedr@xxxxxxx] 
Sent: Saturday, 26 June 2004 3:20
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Hot Backup Theory Revisited:

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
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