"If no level 0 backup is available, then the behavior depends upon the compatibility mode setting. If compatibility is >=10.0.0, RMAN copies all blocks changed since the file was created, and stores the results as a level 1 backup. In other words, the SCN at the time the incremental backup is taken is the file creation SCN. If compatibility <10.0.0, RMAN generates a level 0 backup of the file contents at the time of the backup, to be consistent with the behavior in previous releases."
So yes, that's it. Even in the Oracle 11g OCP course and exam, the information given is for Oracle 9 (pre 10g). Seems like a major functional regression.
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Original problem.
Am I not understanding something about rman????
Using oracle 10g standard edition and rman.
No existing backups.
When I run repeated level 1 cumulative incrementals, the appear to back up everything (like a level 0 would).
My understanding is that if a level 1 is run w/o an existing level 0 backup, it will generate a level 0 backup.
All subsequent level 1 backups should be level 1's as expected.
If I explicitly generate an level 0, followed by level 1's it all works as expected.
I am determining what got backed up by the size of the resulting save sets.
Do I have to do an explicit level 0 and then explicit level 1's? I thought not.
We just purchased NAS (Raid5) unit to manage our data storage. I am planning to create a virtual partition on this nas device and use one partition for oracle data storage and another virtual partition will be used by other data (files and may be sqlserver data files....etc..)
We will have oracle installed on seperate oracle server. Can we use RMAN to manage incremental backups in this environment? May main worry point is that our data storage device will have many different type of datas and will we be able to tell RMAN to make backups only from certain virtual drives?
Here we have a dataguard environment with db1 as primary and db2 as physical standby database. We configured dataguard in 10g environments and we are not using grid control. What are the steps for configuring rman for incremental backups in this environment?
We want to schedule the backups to be taken in standby db, (that is applicable in case of switchover too). In the case of switchover to db2 what all do we need to do in rman manually to resume backups in db1?
if I run below rman command lines in 10g and 11g RMAN, it works well, but NOT in RMAN (Release 8.1.7.4.0), so which commandlines I should use to get to the same pursposes in RMAN 8.1.7.4?
run { ALLOCATE CHANNEL c1 TYPE 'sbt_tape'; ALLOCATE CHANNEL c2 TYPE 'sbt_tape'; ALLOCATE CHANNEL c3 TYPE 'sbt_tape';
We are going to implement oracle 11g. Now I wanna use rman to take the incremental backup in the follwing way:
Level-0 backup weekly, in the way:
run { allocate channel c1 type disk; allocate channel c2 type disk; BACKUP incremental level 0 DATABASE TAG 'Weekly_full' FORMAT 'E:RMAN_backupweekly_full_%d_%Y%M%D_s%s_p%p.bak'; backup archivelog all not backed up 1 times delete input TAG 'Weekly_full_arc' FORMAT 'E:RMAN_backupweekly_full_arc_%d_%Y%M%D_s%s_p%p.bak';
[code].....
and RETENTION POLICY TO RECOVERY WINDOW is set to 10 days, so that there is no chance that i will delete expired backup before taking backup.
Now my question is,
1) Is the way is correct that there is no wrong configuration. My main concern is about archive log, is it correct?
2) As i am deleting archive log files with the backup and after that the expired archive log backup is also deleted, so is there any chance of failure in recovery.
3) here how archive log backup will work with 10 days retention policy.
I have some client RMAN backups from an AIX machine, a set of .bkp files including the control file, that I have been asked to restore on a Windows 2003 server. My first question is if such a restore is possible?Also, the backups are from Oracle 10.2.0.3, and I need to restore them to 11g, will this cause any complications?
how to carry out such a restore procedure from scratch.
We have EM (Cloud 12c) initiated scheduled backup jobs that perform (all below are online backups, obviously archivelog mode)
- level 0 Incremental 3AM on Sunday - with options backup all archive logs, delete input, delete obsolete
- level 1 Incremental (non cumulative) 3AM every other day - same options
Recovery window is set to 3 days, other options below:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 3 DAYS; CONFIGURE BACKUP OPTIMIZATION OFF; # default CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default CONFIGURE CONTROLFILE AUTOBACKUP ON; CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 2;
[code]....
Everything appears to be working normally (archive logs are being backed up and once they are the archive logs themselves are being deleted from the FRA), but I'm having some trouble understanding the behavior of the delete obsolete.
With a recovery window of 3 days, on Monday at 11AM my expectation would be that I would find in backups the following:
- level 0s from day before (Sunday) and the previous Sunday (8 days prior)
- all level 1s from previous Sunday on (so Mon-Sat and this morning)
- archivelog backups from Friday until this morning
What I'm not understanding is that I'm seeing archivelog backups from last Monday, Tuesday, etc. - i would have thought these would have gone obsolete based on my recovery window, yet when I run report obsolete in RMAN nothing is showing up.
I have an environment in which backup is performed of Oracle 10/11 databases with the use of RMAN and Tivoli Storage Manager (Data Protection for Oracle).There are several databases and for every one there is a daily full backup and hourly archive logs backup.
Sometimes when full db backup takes longer (up to 4 hours) archive logs backups are missed - as TSM node cannot perform two backups at a time. I would like not to have those missed backups.
Option A was to delete association of the arch log scheduler during full backup. But when removing association we lose historical data about backup. And we need historical data to be able to create weekly / monthly / quarterly statistics of completed backups. We need to have 99% completed.
Option B was to create two nodes in TSM (TDPO) and one will do full backup only and another one only arch logs backup. So the problem is moved to RMAN. But from RMAN specialist I heard that this may cause problems with full backup. During full backup also archive logs are backed up (at the start and end) so there might be a problem with accessing the file that is used by another process. And this may cause problem with full backup - which we want to avoid especially.
RMAN is not removing obsolete backups and now the backup directory is nearly full.Retention policy is 1, however, there are backups more than 6 weeks old still in the backup directory.crosscheck and delete obsolete commands run every night, and I have also run these manually, yet the backup files still remain.It is like RMAN is not aware of their existance.How can I confirm that RMAN does not need them and therefore delete them manually using OS commands.
As part of an incremental backup I recover copies of the tablespaces. These by default are stored in the disk backup location diskgroup. Is it possible to move these copies to another disk group / location whilst still backing up to the default disk backup location diskgroup. I know how to do it with the main datafiles but not with the copies. e.g.
Current situation: Original Datafiles in +DATA Backups in +FRA Recovered Datafile copies in +FRA
New setup to be: Original Datafiles in +DATA Backups in +FRA Recovered Datafile copies in +BACKUP
I have taken the RMAN Full database backup through the following command.My database is in no archivelog mode.
AT RMAN prompt Shutdown immediate; Startup mount; run { allocate channel c01 device type disk format 'd: man_bkp est_%U'; allocate channel c02 device type disk format 'd: man_bkp est_%U'; backup full database tag 'full_bkup_test_081111'; backup current controlfile; backup spfile; release channel c01; release channel c02; }
Now i have deleted my all controlfile and spfile/Pfile from the database.So how can i recover my SPfile and controlfile? i do not have autobackup on of SPfile/Controlfile.
I have a live server on which Oracle 10g Database is running. We take full RMAN Backups everyday. Now we want to restore the RMAN Backup file from the Live server to another machine (which is going to be a test system). I want to restore the latest RMAN backup on the test machine (which is not on network).
When I copy the RMAN backup set in the flash recovery area of the test machine and then use "list backup", the backup set is not listed. I also tried "crosscheck backup" and then "list backup" but still the backup set does not appear. how can I register the backup set from live server into test machine and then restore it.
I have a problem in running delete obsolete or report obsolete using rman. Although the retention policy is set to "CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 60 DAYS;", when running delete obsolete or report obsolete it deletes or returns all the backupsets till sysdate. What should I do to solve this issue?
is it possible to have a vss snapshot backup on the top of an RMAN backup. Because the link [URL] says that we can have an incremental level 1 backup on the vss snapshot backup.
So I need to know if interoperability between RMAN and VSS exists or not.
Also is it possible to have mixed backups meaning vss snapshot backups and rman backups. Whenever we take snapshot backup, is it updated in the control file?
I am trying to learn about RMAN Incrementally Updated Backups. I created a database on Server A with the parameters and configurations as shown in image attached. I would like to restore full database on Server B (Test DB).The Server B is exactly same in directory structure as the Server A
e.g. ('E:archive','E:incr_backup'). I would like to automate this process so that it updates the Server B on daily basis for R&D purpose.
Oracle 10gR2 on 64-bit RHEL.Backup Strategy:There will be a level-0 backup of the database every Sunday and level-1 every weekday.Archivelogs will be backed up up every 30 minutes.
Q: How can I delete ALL the archivelog backups that were taken that day (every 30 minutes) right after successful completion of level-0 or level-1 backup?
I want to delete them because they may not be of any use after the level-0 or level-1 backup (am I right)?
7 of days ago Full backup has been taken to disk due to issues with tape devices.3 days ago tape devices have been fixed and we switched to CommVault managed tape backups. CommVault calls RMAN with following command:
These backups done successfully.Then archivelog backup taken similar way.But when I issue RESTORE DATABASE PREVIEW SUMMARY; RMAN starts with Full backup set, though newer Incremental Level 0 ones are available.Why it does not use these newer ones?
Got Active DataGuard on a primary database, quite nicely sending its archive logs to its secondary. I can quite happily use the Broker and switchover between them.
Now if I take RMAN backups of the primary database, if I have to failover to the secondary, I'm gonna loose all those backups.
Well, I can restore the whole database to the backup, cos I can restore the control file, from the backuip and therefore I can restore the whole db.
But if I want to restore to a tablespace, I wont be able to , cos the db_unique_names names are different, and the DB ID's will be different.
Same goes if I use a recovery catalog....
so how do I failover/switchover without loosing my previous rman backups ??
why can not we resize online redolog files instead of re-creating the same with large size and remove the older onces.2. How can we make RMAN obsolute backups as usable ?
I run DLY cold backups including controlfile & archivelogs and keep 3 gens of backups and archivelogs to 3 days also. What is the correct procedure to restore back to an old cold backup. Database is backed up Mon,Tue,Wed on Thur we require to bring database back to Tuesday DLY security.
I have tried: startup mount restore database from tag 'DLYTUE' recover database
( this just rolls forward on all archive logs once it restores datafiles, not getting to point to alter database open resetlogs.)
Next tried to :
recover database archivelog tag 'DLYTUE' ( same outcome )
What is the correct rman procedure including should I remove old archive logs from working OS directory ? Also need to know once I restore back and open database to TUE security how do you tidy up the archive logs and dumps which are no longer require i.e. : weds..
I have read about using the set until time option but how to I get absolute time from when cold backup completed if this is the correct procedure.
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.
I've a little question : Is it possible to use RMMAN to backup 2 tables incrementally ? I don't want to backup all the database but only these 2 tables.
I use kill -9 <pid> and kill the job and then i check ps -ef | grep rman and get no process of RMAN but when i login into Enterprise Manager and click on performance tab so i see the graph of RMAN (yellow in colour) which is still continue and means the RMAN backup is in progress , then i checked the top consumer page so there i see backup incr datafile(SYS$USERS)(26.8%), so i want to down this RMAN backup.i also used the this query to check the RMAN job running or not
select * from V$SESSION where MODULE like 'rman%'; it came up with no rows
