Question

Backup Oracle 8.1 ?

Asked by: ammounpierre

Hello Gurus,
I am to maintain a Oracle Application 8.1. that is not supported any more by the application developer.
Since I am the IT there , so I have that burden...

I cloned my server...and it is now running... ok...
I need a backup strategy so I am safe no matter what... so I can recover in case of pb..
I got a script from the net.. that dos stop the services... copies the files (index and tables...)
then re-mount the services...
My pb is that sometimes... (and it happened... ) the services are not being re-started..and we need to re-start them manually..
which requires a manual intervention... which I am to avoid.

I am now running the exp command to dump the whole tables without compression...
is that enough ?

any other "hot" backup available that would give us a "recoverable" backup ?
thanks

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Asked On
2009-10-30 at 04:50:33ID24857715
Topic

Oracle 8.x

Participating Experts
1
Points
500
Comments
5

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Answers

 

by: mrjoltcolaPosted on 2009-10-30 at 06:21:07ID: 25702637

8i has two hot backup options. Both require your database to be running in archivelog mode.

1) Traditional hot backup - A script that puts your tablespaces in backup mode, copies the datafiles, then takes them out of hot backup mode.

2) RMAN - See the hot backup section on this page:
http://www.oracle-base.com/articles/8i/RecoveryManager8i.php

As for help if you need more info.

 

by: ammounpierrePosted on 2009-10-30 at 07:50:29ID: 25703496

1) Traditional hot backup - A script  ? Can  I have a script ?
I am told that RMAN is not so good under 8i ?

 

by: mrjoltcolaPosted on 2009-10-30 at 08:10:19ID: 25703722

>>I am told that RMAN is not so good under 8i ?

By who and what reasons did they give?

True, earlier versions of RMAN had less capability and options, but if used carefully, it does the job fine.

However, if you are running unsupported, it is up to you to choose what you can manage. RMAN can do backup in image or backupset format. Images are the same as doing hot backups manually, however, RMAN has the advantage of less overhead, because it can backup a datafile without putting the tablespace into HOT BACKUP mode (which causes some performance issue).

For COLD and HOT BACKUP scripts, see schwertner's post here (section B is HOT BACKUP): http://www.experts-exchange.com/Database/Oracle/Q_20249339.html

For an RMAN hot backup, see my post here:

http://www.experts-exchange.com/Database/Oracle/10.x/Q_24490317.html

 

by: ammounpierrePosted on 2009-11-03 at 16:28:48ID: 25735367

I was searching the net and I came across this script.
can U pls confirm that this will "do the job" (full backup of the system ?)

*******************************************************************************
connect sys/oracle as sysdba
alter system switch logfile;
alter system archive log all;
set serveroutput on size 1000000
set echo off
spool G:\hotbackit.sql
declare
  cursor c1 is select name from v$tablespace;
  cursor c2 (vname in varchar2) is select FILE_NAME from dba_data_files where tablespace_name = vname;
begin
  for rec in c1 loop
        dbms_output.put_line('alter tablespace '||rec.name||' begin backup;');
     for rec2 in c2 (rec.NAME) loop
        dbms_output.put_line('host xcopy '||rec2.file_name||' W:\hotbackup\');
     end loop;
        dbms_output.put_line('alter tablespace '||rec.name||' end backup;');
  end loop;
end;
/
spool off
G:\hotbackit.sql
*******************************************************************************


 

by: ammounpierrePosted on 2009-11-10 at 06:42:54ID: 25785807

??

20120131-EE-VQP-002

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