Server Administration :: Backup Of Controlfile
May 20, 2011
I have 3 controlfile in those i lost 2 controlfiles as dba what we do? Is the following process is right?
shut the instance abnormally as shut abort
restore the backup
startup nomount
alter database recover automatic using backup controlfile until cancel;
recover cancel;
alter database open resetlogs;
and one more thing is thatwhat we need to restore? the backup of controlfiles which are lost/all the controlfiles/all the database files
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Jan 5, 2011
we are having physical standby database and production database..we have create a soft link for a datafile in production to another mount point
ex- /disk1/data1 to /disk2/data1
now we want to keep the datafile in /disk2/data1 and remove the softlink..As we are having physical standby database . i need to know what are step to be taken. my action plan is as follows:
In production.
1. synchronise both standby(apply archive logs) and production.
2.shut down the standby
3.create controlfile in production in ascii format and edit the path (/disk1/data1 to /disk2/data1)
4. run the @control.sql that i have created
4.create a standby control file in production .
In standby:
1. take the backup of controlfile.
2.place the newly create controlfile(from production) to the location of controlfile
3. remove soft link.
4.startup mount.
5. then we can apply logs as usual to make the standby sync.
whether my action plan is 100% correct or any changes to be done.
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Sep 22, 2010
We performed image copy of production Oracle server (OS and instances) to a backup server. After a few weeks, we try to restore a latest Oracle database backup from production server to backup server. As we know, Oracle instance must be unique on the network.
Even we log on to backup server and bring up the instance, I think that still point to production instance since all init file, TNSNAMES.ora and listener file are still same. If we restore the database, we will end up bring down the production instance and restore on top of productions. How to change instance name on backup server including TNSNAMES, sqlnet, listener files in order for us to restore Oracle database from production to backup server?
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Mar 22, 2011
I have upgraded a 9i db to 10g on another server using rman backup (9.2.0.8.0 on linux to 10.2.0.4.0 on Linux)
I copied the hot backup - rman from 9i db server to 10g db server
Then I restores the rman backup on the 10g db server opened the database with
alter database open restlogs upgrade;
@?/rdbms/admin/catupgrd.sql
shutdown immediate;
startup restrict
@?/rdbms/admin/utlrp.sql
Now I have all components in VALID state but the db server itself in INVALID state as can be seen from results below
SQL> select comp_name, status, version from dba_registry;
COMP_NAME
--------------------------------------------------------------------------------
STATUS VERSION
----------- ------------------------------
Oracle Database Catalog Views
VALID 10.2.0.4.0
Oracle Database Packages and Types
VALID 10.2.0.4.0
SQL> @?/rdbms/admin/utlu102s.sql TEXT
.
Oracle Database 10.2 Upgrade Status Utility 03-22-2011 10:35:20
.
Component Status Version HH:MM:SS
Oracle Database Server INVALID 10.2.0.4.0 00:06:59
.
Total Upgrade Time: 00:07:05
PL/SQL procedure successfully completed.
SQL>
Has the upgrade failed?
Note that
OS for 9i db server is
Linux 2.6.9-42.EL #1 x86_64 x86_64 x86_64 GNU/Linux
OS for 10g db server is
Linux 2.6.18-53.el5 #1 x86_64 x86_64 x86_64 GNU/Linux
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May 10, 2012
My production database is about 900 GB in size but the actual data in our database is only approx 600Gb it means 300GB is a deleted data and not fragmented, as per my understanding the best way to resolve fragmentation is Import/Export but we can go for this option because its a very time taking process.
We are taking full database backup using RMAN every week and also going to upgrade our production database from Oracle SE to Oracle EE edition using the same full database RMAN backup, as i know Rman is also not backup of those blocks which not containing any data , it means if we will use Rman full backup to setup our new EE database it will only 600GB of data not 900GB or there is only Export/Import to remove fragmentation.
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Jun 27, 2012
When I try create controlfile reuse resetlogs database 'cms';
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file
'%ORACLE_HOME%DATABASEDBS1%ORACLE_SID%.ORA'
ORA-27048: skgfifi: file header information is invalid
OSD-04001: invalid logical block size (OS 1919900730)
What could be the problem? And why is it looking for DBS1%ORACLE_SID%.ORA' should there be such file?
ora11, Win2003 server
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Aug 29, 2012
I wish to know about Controlfile Snapshot in RMAN. Is this equalent to controlfile backup?
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Jul 4, 2013
I'm in 11203, and generation of ASH report is very slow.AWR and ADDM reports are generated quickly.To understand what happen, I check the wait event on the session that is executing ASH report, and I found that this session is waiting 99% with "controlfile sequential read". Is there any way to make the generation of ASH report quick ?Why the generation need to access to the controlfile?.
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Aug 7, 2012
I've read a lot about the different types of backup available with Oracle (hot and cold backup). However, I was thinking of a different way of performing this task. I'm currently using Windows Server 2008 R2 and Oracle 11g Standard Edition. I'd like to schedule an entire backup of my server via the utility "Windows Server Backup" (available for free).That way, I could recover my entire server with all the programs and files in case the latter crashes.I'm wondering if this solution could be used as a way of backing up (and recovering) the Oracle database. Should I still set up a regular hot backup with the Archivelog mode enabled in case some operations/transactions were being done at the time of the crash (for the data integrity)?
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Jun 21, 2011
We are using Oracle 10g R2 in Windows Server 2003. I'm trying to restore a database in a new server, using RMAN backups.
Our external consultant configured RMAN scripts for full and incremental backups but never tested them . Since he just doesn't show up, I'm forced to tested them, restoring the whole database in a new server.
My instance is named MTDPROD, and I will create all from scratch.
At current server, RMAN files are generated in:
//192.168.1.149/g$/XXXSRV4-ArcLogs/MTDPROD/RMAN
At new server, I run all these commands:
C:>oradim -new -sid MTDPROD -intpwd mtdprod
Instance created
-- I created the relevant folder hierarchy under <ORACLE_BASE>
directory
-- Then, I created the relevant directories for Oracle Database, as
follows:
--a. Create BDUMP, CDUMP, and UDUMP directories under '<ORACLE_ BASE>
[code]....
By instance, I see a lot of this kind of files:
- FULL_MTDPROD_20110529_386_1.BAK
- INCR_MTDPROD_20110621_480_7.BAK
And only see these two files:
- C-2169285856-20110527-03
- C-2169285856-20110527-04
It seems that this C-2169285856-.... files only were on 27/05/2011 and then no more. However, the FULL_... and INCR_.. files are generated every day. The FULL is generated at the end of each month and INCR is generated every day.
This is the backfull.sql:
run {
allocate channel c1 type disk maxpiecesize=4G;
CROSSCHECK archivelog all;
backup
incremental level 0
format '\192.168.1.149g$XXXSRV4-arclogsMTDPRODRMANFULL_
[code]....
This is the backincr.sql:
run {
allocate channel c1 type disk maxpiecesize=4G;
CROSSCHECK archivelog all;
backup
incremental level 1 cumulative
format '\192.168.1.149g$XXXSRV4-arclogsMTDPRODRMANINCR_
%d_%T_%s_%p.bak'
[code]....
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Feb 13, 2012
I am attempting to use an rman backup form our live server to restore live data over an existing dev database with a different name. I cant use the duplicate command as the versions of oracle are different (10.2.0.4 EE on live, 10.2.0.5 SE on dev) So I copied the backup sets including an autobackup control file onto the dev server. I set the ORACLE_SID to the DEV version (SUN43DEV) and startup nomount and restore controlfile from the backup location. This works and restored the live controlfile. However, I then wanted to mount the database and catalog the backupsets before making a note of the last archivelog etc and restoring the backup with set newname options. But when I try to mount the database I am told that the database has a different name (SUN43 is not SUN43DEV). I read somewhere that I need to set the ORACLE_SID to the live value (SUN43) and restore as that, then use nid TO RESET THE DBID and DATABASE NAME. However, my tnsnames on DEV has no entry for the live database, and we do not have any service defined through ORADIM for the live instance on the dev server. Should I be creating an entry in DEV tnsnames that actually looks at the LIVE server? or do I need to create a service and tns entry etc for SUN43 on my DEV server pointing at the DEV server I have not seen any mention in instructions of creating a service or adding the entry to tnsnames, or indeed adding an entry to the listener for the original live sid. I am worried that if I actually point to the live server then the restore would be attempted on the live server not dev even though I am running it from Dev.
Also, do I need to drop the existing database on DEV before I restore or will RMAN just restore over the top of it?
Finally, if I try to add an entry to the LISTENER.ORA for the new sid, when I stop and start the listener, or reload, the entry is not recognised. I also noticed that the existing SUN43DEV entry is not in there either, yet I can still use that SID - I am assuming that is because the listener is not being used and the sid is recognised from the existence of the service in windows services instead?
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Jan 31, 2011
I am trying to create my database on a new server using rman incremental hot backups.
I have already restored and recovered my level 0 database on new server, but i am not able to restore/recover the level 1 backup on the new server. I have transported level 1 backup irom the old server to the new one. Do i need to recover lvl 1 bkp only or restore it also.
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Feb 2, 2011
how export is called as logical backup ? If export is logical backup then what is hot backup .Can hot backup be called as logical backup.
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Jan 31, 2011
n my last post I asked abt the issues that I was facing while restoring the full backup of RMAN on a new server. I mentioned the steps as well, Now my Question is what If I want to restore the incremental backup on the new server?
What all steps do I have to follow after restoring the zero level backup on a new server.
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Jul 2, 2011
FIRST Question?
I have main database Server which is located on Server A, now I have to take the RMAN Backup of Server A and then shift the complete database on new Server B.
I am confused whether to use Backup command with AS COPY option or take the backup as backup sets. Which are the best option that I can use for the RMAN Backup.
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Jun 14, 2013
I would like get a copy of an oracle 10g database off the production server(windows 2003) and set it up on Windows 2003 virtual server to use for dev/testing.
What would be the safest and most efficient way.??
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Feb 27, 2013
I have two Solaris 5.11 x86 64 bit servers. I need to be able to copy the backup files to a temp location on the 2nd server and restore that server so it is a test version of the first server. There is no RMAN catalog, I simply want to backup on A move to B restore from files copied to b.
On the first server installed Oracle Enterprise 11.2.0.3. sid = orcl. i created one schema with a new table space added a table and inserted 500,000 rows.
i set the db to archivelog=on, set configure controlfile autobackup on
i then did RMAN backup as backupset database spfile;
on the second server, i installed Oracle Enterprise 11.2.03, sid=orcl exactly like i did on the first server.i scp'd all of the files created by the backup to one location on the test server. i renamed spfileorcl.ora in dbs to somethinge else. startup nomount, exit and go to rman and run this:
DUPLICATE DATABASE TO 'orcl' SPFILE BACKUP LOCATION '/tmp/backups' NOFILENAMECHECK;
this runs for a while and looks like it works but eventually fails with :
RMAN-05541: no archived logs found in target database
subsequent attempts to 'startup' the database receive the error ORA-19838: Cannot use this control file to open database.
This is very frustrating. I have gone over all of the manuals, documentation and more but there is no 'step by step' process that i can find that is current with my version of Oracle that documents the steps necessary to simply backup a db, move it to a test server to a disk and then restore that test server as a copy of the first server.
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Nov 29, 2010
i'm a student currently learning database administration security.
I need to create a tablespace for administration of database but i don't know what datafile settings are best suited for admin usage.
I have attached the schema that was given to me for this assignment.
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Oct 18, 2012
understanding rman scn based Backup Algorithm .. In SCN based backup do rman generate backup from archivelogs ???
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Jan 24, 2011
I have 2 seperate rman backup one backup is of only datafile ,spfile and controlfile which i am able to restore and recover without any problem say bkp1 taken at 10 am
other set of backup is of only archive log files of same day but later time than datafile backup say bkp2 taken at 8pm...if i restore and recover bkp1 and try to restore bkp2 it gives error datafile exist (possibly due to fact both backup have control file)
if i just restore bkp1 and try to restore bkp2 so that i can do one recover at time
it gives error datafile permission issue (possibly due to fact both backup have control file)
I want to restore database upto 8pm time how can i use both bkp1 and bkp2 to do it(restore datafiles and apply all archive logs on it)
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Apr 8, 2010
My manager is asking to create a SQL scrip, which will provide following information.
Our database is 9.2.0.7.0 on Windows 2000 Server
-How many records Insert / Update or Delete daily in my Oracle database?
- Check Archive log / Redo Log switching information?
-Check database growth ?
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Jan 11, 2011
i am trying to install Oracle 10.10.2.0 on Windows Server 2003 standard x64 Edition Service Pack, but when i try to run the installer or open DVD it gives me below error.
"The image file D: is Valid, but is for a machine type other than the current machine."
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Jun 27, 2012
I was trying to delete the database in the test server. When i was deleting listener was already stopped, i continued deleting using dbca, it shown me some alert that datafiles cant be deleted because system could't find database, since listner was stopped so only service was deleted(the one showing in the windows administrator toolsservicesOracleServiceTEST).
All the datafile parameter files are still there. How can i delete the datafiles and parameter files belongs to that database or how to create the deleted service, so that i will start the listener and do the complete deleting of the database.
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Oct 31, 2012
I have to migrate production database version 10gR2 on windows 2003 server to oracle 11gR2 on windows 2008 server . So far i have just installed the oracle software on 64bit windows 2008 server. How to move the data or migrate from old server to new server .
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Jan 11, 2011
after a long time,(i never remember when was the last time i installed 9i)i was asked to install 9i.So, whether i install server or cilent i get this error <attachment>
after i ignore it and finished the installation,The server installation gets abruptly ended for the client i get TNS errors.
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Feb 13, 2013
I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server.
2. I invoked "sqlplus" from another unix box to login to the database.
3. I found that the process id (ps -ef |grep sqlplus).
4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID,
SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM,
SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID
FROM
SYS.GV_$PROCESS, SYS.GV_$SESSION
WHERE
SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST'
and SYS.GV_$SESSION.MACHINE like '%hostname%'
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Jul 26, 2010
While creating the index we are getting the error "ORA-00603: ORACLE server session terminated by fatal error".
We have the space in tablespaces and also in the file systesm.
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Apr 18, 2011
I have database in single server. I already have ORACLE_SID=stagedb. So i want to create new sid and named as proddb.Is it possible have multiple db in single server? This server not running as RAC. It run as single only.
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Apr 30, 2012
database administration , we are planning to use amazon cloud database , this database does not allow us to login to server machine , unfortunately amazon don't provide ssh to this machine , in general for doing any of adminstration task on the database will there be need to log into the machine ? we can always log in through toad or any other sql client but we cannot do ssh to server..general can this limitation effect administration ?
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Apr 19, 2011
I want to install Oracle 11g R2 in windows 2008 64 bit server. How can I know whether my server is ready to install Oracle ie is all components are available in server or any patch is to be applied etc.
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