Recovering Standby DB From Incremental Backup
Nov 11, 2010
I've got a physical standby (10g) which is missing some archive logs, and thus the managed recovery is stuck. I followed the procedure for taking an incremental backup of the primary from the last SCN in the standby, and then recovering the standby from that backup using rman.
It seemed that everything went according to the instructions, except that the "recover database" of the standby from the backup went much faster than I expected. Afterwards I checked the SCN of the standby (select current_scn from v$database) and it had indeed updated to a number beyond where it was stuck originally. The standby controlfile was restored from a backup of the primary's current controlfile, and the standby restarted. The problem is that when I started up standby recovery again, the standby is still looking for the logs which were missing. I can't figure out why! I've been googling around and digging through the docs, and the only clues I can find suggest that this would happen if the standby controlfile wasn't updated. But I did that.
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Nov 6, 2013
I have a Primary database and Standby database both in ASM. Recently my archive logs got deleted and i am trying to recover my standby database with an incremental backup based on scn from primary database. But i face the below error when i recover the standby database with the incremental backup taken in primary database.
RMAN> recover database noredo;Starting recover at 06-NOV-13using target database control file instead of recovery catalogallocated channel: ORA_DISK_1channel ORA_DISK_1: SID=21 device type=DISKchannel ORA_DISK_1: starting incremental datafile backup set restorechannel ORA_DISK_1: specifying datafile(s) to restore from backup setdestination for restore of datafile 00001: +STDBY/11gdb/datafile/system.258.805921881destination for restore of datafile 00002: +STDBY/11gdb/datafile/sysaux.259.805921967destination for restore of datafile 00003: +STDBY/11gdb/datafile/undotbs1.260.805922023destination for restore of datafile 00004: +STDBY/11gdb/datafile
[code]....
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Jul 11, 2012
I want to ask if I restore a control file from backup of say day2 and I recover till day1 using RMAN script, then what will be the state of my database? I mean day2 control file may be having SCN-Day2, and I am instructing RMAN to recover till past point in time that is SCN-Day1.
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Apr 4, 2013
How to import the data from RMAN Incremental backups to a different platform. Which is the best way to implement this.
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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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Dec 27, 2011
I am using the following query to determine if my rman backup succeeded for failed. I look for "COMPLETED WITH ERRORS"
col input_type format a10
col bck_hrs format 99.9 heading "Run|Time"
col status format a21
col end_dt format a20 heading "End|Time"
col mbytes_per_sec format 9,999 heading "Output|Rate|MB/sec"
[code]...
output
======
End Run Output Rate
INPUT_TYPE STATUS Time Time Size GB MB/sec
---------- --------------------- -------------------- ----- ---------- ------
ARCHIVELOG COMPLETED 2011-12-24 06:03:54 .5 189.4 106
DB INCR COMPLETED 2011-12-24 05:33:05 9.3 3,392.6 103
ARCHIVELOG COMPLETED 2011-12-23 10:12:27 .2 73.3 105
I know that the DB INCR is an INCR 0 backup but is there some way query I can join with my example above to tell me this is INCR 0 or FULL BKUP?
I was thinking maybe setting "COMMAND_ID" some text like INCR 0 or INCR 1 or FULL BKUP. Does that sound feasible
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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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Oct 14, 2013
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.
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Jun 1, 2012
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
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Mar 8, 2013
Every Sunday in the month - Full Backup
RMAN > BACKUP DATABASE;
Rest of the days - Incremental Level 1 Backup.
RMAN> BACKUP INCREMENTAL LEVEL 1 DATABASE
Day of Month Backup Taken Backup Contents
1st Full Backup All files as of the 1st - Sunday
2nd Incremental #1 Files updates between the 1st and 2nd - Monday
3rd Incremental #2 Files updates between the 2nd and 3rd - Tuesday
4th Incremental #3 Files updates between the 3rd and 4th - Wednesday
5th Incremental #4 Files updates between the 4th and 5th - Thrusday
6th Incremental #6 Files updates between the 5th and 6th - Friday
7th Incremental #7 Files updates between the 6th and 7th - Saturday
8th Full Backup #8 Files updates from 1st,2nd to 7th - Sunday
9th Incremental #9 Files updates between the 8th and 9th _ Monday
10th Incremental #10Files updates between the 9th and 10th - Tuesday
11th Incremental #11 Files updates between the 10th and 11th - Wednesday
12th Incremental #12 Files updates between the 11th and 12th - Thrusday
13th Incremental #13 Files updates between the 12th and 13th - Friday
14th Incremental #14 Files updates between the 13th and 14th - Saturday
15th Full Backup CRASHES - NOT COMPLETED - Sunday
I would need to restore now from #8 ( full backup ) and #9 to #14 ( incremental backup )
Tell me the "restore command" to achieve the output?
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Jun 6, 2012
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.
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Jan 18, 2013
what is the difference between incremental and differential backup?
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Feb 10, 2011
We are trying to restore a database on the different server using RAM incremental level 0 and 1 backups. We have weekly Incremental level 0 backups along with incremental backups on daily basis. During recovery of Incremental level 0 backup, RMAN is expecting/looking for Incremental Level 0 backup of prior week as well. Is this the usual process for RMAN to look for prior level 0 backup though we need to restore from the current level 0 backup and roll forward by a week with subsequent Level 1 backup.?
We intend to restore from the Level 0 of 1/16 and roll forward with daily incrementals till 1/22. RMAN is expecting level 0 backupsets from 1/9 backup as well and keep failing since those backups are not available. quick inputs since we are in middle of recovery and trying to resolve if this is even doable.
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May 17, 2013
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
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Sep 10, 2012
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:
run {
allocate channel ch1 type 'sbt_tape'
PARMS="SBT_LIBRARY=/usr/local/bin/simpana/Base/libobk.so,BLKSIZE=1048576,ENV=(CV_mmsApiVsn=2,CV_channelPar=ch1,ThreadCommandLine=BACKUP -jm 45 -a 2:71 -cl 9 -ins 9 -at 22 -j 294321 -jt 294321:4:1 -bal 1 -rcp 0 -ms 1 -data -ma 89 -cn oraclehost -vm Instance001)"
TRACE 0;
setlimit channel ch1 maxopenfiles 8;
backup
incremental level = 0
filesperset = 32
database
include current controlfile spfile ;
}
exit;
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?
Oracle 10.2.0.5 for Linux on IBM POWER
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Nov 13, 2013
Any procedure which we can initiate an incremental backup without Level 0 backup.
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Oct 22, 2012
Can you take an incremental backup level 1 or level 0 without archivelogs?
syntax would bebackup as compressed backupset cummulative level 1 database.
The reason I ask is because when I run backup as compressed backupset cummulative level 1 database plus archivelogs # it runs fine, but when I run backup as compressed backupset cummulative level 1 database it just hangs.
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Sep 18, 2012
On my stand by DB when I run the following command I get this error:
Is this line really needed based on my run block?
run
{
sql 'ALTER DATABASE BACKUP CONTROLFILE TO TRACE';
allocate channel t1 type 'SBT_TAPE'
[Code]....
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Apr 3, 2013
I am trying to backup my control on a STBBY DB(RAC) and I am getting the ollowing error.
ORA-00245: control file backup failed; target is likely on a local file system
what the issue is? Note the FS is ACFS and can see on all my nodes
show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name PA01INS_IM3L059B are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
[code]...
ACFS file system
df -h /share/dbbkup/oracle/PA01INS/rman
Filesystem Size Used Avail Use% Mounted on
/dev/asm/pa01ins-33 75G 2.6G 73G 4% /share/dbbkup/oracle/PA01INS
rman cmdfile=control.rman
[code]...
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Oct 4, 2012
We have a customer that was backing up his data by copying the oracle data XE folder (all .dbf files) to a backup drive. His server crashed and he formatted it and reinstalled the database 11g from scratch.
Now he needs to re-attach the .DBF files, is there a way?
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Mar 2, 2011
I have a question in Recovering the database.
E.g. Backup has done yesterday and today evening all files are lost (control, redologs, archive, etc.)
We are in 24/7 environment then how we need to recover the database?
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Jul 25, 2012
I had a Windows XP client pc with Oracle Client 11-1-0-6 installed. In my absence this client was reinstalled with Windows 7. Therefore all my Registry and Start - Programs settings have been lost.
However my original 11-1-0-6 Oracle Home still exists intact on my C: drive ( i.e. C:appitjxtproduct11.1.0client_2 )
Is there any way I can use the Oracle installer to register this Client Oracle Home again ( so it appears in the Registry and in START PROGRAMS ) ? or is there a way just to get the installer tio reinstall into the client_2 directory again ?
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Mar 26, 2012
I have run a standby clone that terminated with error due to few missing LV-s. I removed all LV-s for the clone, recreated them including the missing ones. I ran the clone again,but it skips the files that were successfuly duplicated in the previous clone request that failed. I need to be able to start the clone all over again, but RMAN does persistantly skip duplicating the datafiles that were successfuly processed in the first atempt.
How to ignore the RESUME option so that the clone process would start from the beginning? Where does RMAN keep the info about the successfuly duplicated datafiles in clone standby process? I have tried few RMAN tables , but no luck.
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Oct 6, 2013
for rman backup with standby database with datagaurd but no active DG. I wanted to do a rman tablespace backup. but I am stuck at sql 'alter system archive log current' in rman with standby as target. which gives following errors with or without noswitch clause
RMAN> sql 'alter system archive log current noswitch';sql statement: alter system archive log current noswitch
RMAN-00571: ===========================================================RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============RMAN-00571: ===========================================================RMAN-03009:
failure of sql command on default channel at 10/05/2013 18:15:12RMAN-11003: failure during parse/execution of SQL statement: alter system archive log current noswitchORA-01109: database not open Recovery Manager: Release 11.2.0.1.0Oracle databaes Release 11.2.0.1.0 64 bitOS:RHEL 6 x86-64 bit Secondly,
do I need to cancel manged recovery while taking rman backups on standby. I scanned thru MOS but could find solutions for rman with active DG.
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May 9, 2013
I have Oracle database on Oracle 10g R2 with physical as well as logical standby database.
1) Is is necessary to take Physical standby database backup?
2) If 1) yes then Which RMAN backup is preferred?with catalog or default?How to take backup as different location?
3)how to Restore that backup?How to ensure backup is valid?
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Nov 15, 2013
I trying to backup archive logs using rman in standby database. I'm able to backup archive logs using simple command it get's successfully completed. rman > BACKUP ARCHIVELOG ALL When i'm trying to do with keep command it's getting failed.I'm trying to do on physical standby databaseBACKUP ARCHIVELOG ALL KEEP UNTIL TIME 'SYSDATE+100' TAG = 'TEST'.
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Jun 12, 2012
We have production database and standby database in 11g.
Production db server is taking care by different team even I don't have any access of the production server and I am responsible only for standby server. As of now everything is working fine except database backup on standby server because standby server is not register in catalog.
How to register standby server in catalog for RMAN backup?
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Dec 6, 2012
I have to recreate my standby database due to huge archive gap. I have full datafile backup of primary.
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Oct 9, 2012
I have One Production and one logical standby database . Due to tape problem we are unable to take backups of primary . And due to business , we cannot take back up on disk in hot period(Bank database ) .
If i take logical standby database backup(level 0 ) using RMAN , then will i be able to restore it on production dtbs (In case Production down) ? . Logical standby is in sync with primary .
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Jun 8, 2012
I use windows 2003 server, oracle 10.2.0.4.0.My question is related to maintaing a standby database
1. Do we need to take RMAN full backup of standby database on a regular basis? At the moment I dont take backups of standby database.
2. I have FRA on standby database. The archivelogs from primary go to FRA on standby. I delete my archivelogs as follows:
DELETE ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-3';
Though the archivelogs are delete there are still empty folders of archivelogs that are not deleted. How to get rid of them automatically.
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