Equivalence of parallelism to allocate no.. wire to allocated channel whereas maxfilesopen means no. reading by time of input file and fileperset means no. writing by time of tapes/discs.
May I know what are the relationships between the parallelism and maxfilesopen + filepreset.
Do mean allocate no.. of threads allocated for read write the process in general?
Thank you
StarterAman
Speaking of RMAN it is confusing to use the term parallelism and threads.
On the contrary, the correct terms are:
channel is a pipe to a physical output device. If you have several physical output devices, so you can have several channels simultaneously running. Each channel is associated with a session.
maxfilesopen (IE multiplex) corresponds to the maximum number of simultaneous files that can be read simultaneously for a channel. No matter how many files by channel multiplexing - there is still only 1 session / channel. By default the multiplex = 8 files per channel.
filesperset is simply the maximum number of files that can be written in a backupset. Unsaved files are written in an another backupset. Default = 64 files per set.
My database is in ARCHIVELOG mode. I intend to make a weekly backup for my db (02:00 every Monday). There will be all the incremental backups between these windows(Monday-to-Monday) of backup that I have would function for retrieving archived redo logs.
Question1. I want to save the archived logs every day (for example at 23:00). How can I configure that?
These are the configuration setting, that I intend to implement. I don't know how to set up the archive log backup
configure default device type to disk;
configure retention policy to redundancy;
configure device type disk parallelism 1;
configure channel 1 device type disk clear;
configure channel 2 device type disk clear;
configure channel 1 device type disk format '/u05/rman1/datafiles/rmnabackup1_%U';
configure channel 2 device type disk format '/u05/rman2/datafiles/rmnabackup2_%U';
configure controlfile autobackup on;
configure controlfile autobackup format for device type disk to '/u05/rman1/control_files/rmnabackup1_%U';
Question2. After that a new full backup is taken at 02:00 on Mondays, the archived redo logs accumulated since the last 7 days become unnecessary. How can I automate the removal of the archive redo logs with RMAN?
Archive the log delete them all input command will take the destination of the log archiving log backup archive and delete this destination.
In the log archive destination he has archived log in the sequence 1 to 100 then will he take the backup and delete any of the destination (Monday 23:00).
In the log archive destination he has archived sequence journal 101 to 150 then will he take the backup and remove those in the destination (Tuesday 23:00).
In the log archive destination he has archived log in the sequence from 151 to 180 so will he take the backup and delete any of the destination (Wednesday 10:00).
It will continue like that.
Concerning Asif Kabir
-If you help brand the response as correct/useful.
All output data base Oracle can restore backup sets and copies created by any prior release of Oracle Database.
However, in order to open a database, the data must match the version of the Oracle binaries. If you restore and recover a previous version of the database, you will need to update database permission to open it.
RMAN cannot upgrade and migrate a database, but you can use the wizard for DBUA do. I suggest that you only consider this document showing your upgrade options:
Unfortunately, there is no way to upgrade direct 11.1.0.6 12.1 and you must upgrade the database to 11.1.0.7 first before restoring it. Other options, see the link above.
We backup data base of sbt with rman and nmda library (networker).
We want to copy the disk sbt backupset. Is this possible?
Kind regards
William
I remember that this is not possible. It was perhaps possible to redraw the rman backup and restore concepts, but there is probably no real business applications. Remember that a band or an sbt (series tape backup) is a streaming device. You can read from tape or write about a band, but you can't read and write in the same band at the same time. What syntax would you choose to perform an rman backup from tape to disk or tape to tape? Rman backup you can specify a peripheral channel of exit and entry for the use of the restore command. As far as I know, the rman backup source is the database control file and it reads no Ribbon.
DB version: 11.2.0.4.0, not the RAC environment, single instances
That's happened? My My db catalog rman session did not survive? Why the error happened at 09:00 (and not 17:00)? Why the session called the catalog rman during switching of the data files?
Can someone explain it to me?
Thank you!
Hello
The connection of the RMAN catalog remains inactive during the backup/restore process, once rman completes the task and try to activate the connection it gets error.
What is expected as you said the rebooted server. If this happens because of the expiration time, we went with the parameter net expire_time to maintain the connection.
RMAN is not able to recover the corrupt blocks, I don't know about that. We do not use RMAN to our backups (using snap backup). I just connected to the RMAN prompt and tried recovery. I may be wrong on
that we do not have previous backups of the database. Do we need previous backups to recover blocks? Clarify pls,
Thank you
Hari
block recovery is like data file recovery and data recovery - all of them are based on database backups and archivelogs.
Hello. I use the server of Oracle 11 GR 1 material with operating system Oracle Linux 5.10 database.
I understand how to back up the database instance in SQL Server with Windows. But do not really understand how to back up the database instance in Oracle on Linux. I did it cold and hot backup for the database HRCS90 instance, but both receive the same error message.
Cold backup is below:
SQL > startup ORACLE instance started.
Total System Global Area 538677248 bytes Bytes of size 2146024 fixed 528482584 variable size bytes 4194304 buffers of data bytes Redo buffers 3854336 bytes Mounted database. Open database.
SQL > shutdown immediate The database is closed. The database is dismounted. ORACLE instance stops.
RMAN > backup database;
From backup 25 November 13 using the control file of the target instead of recovery catalog database RMAN-00571: =========================================================== RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =. RMAN-00571: =========================================================== RMAN-03002: failure of the backup command to the 25/11/2013 14:26:52 RMAN-06171: not connected to the target database
RMAN > backup HRCS90
RMAN-00571: =========================================================== RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =. RMAN-00571: =========================================================== RMAN-00558: error occurred during parsing of order entry RMAN-01009: syntax error: found 'distinctive sign': expected an of: ' archivelog, auxiliary, as, backup backupset, blocks, channel, check, copy, copies, controlfilecopy, cumulative, current, basic data, datafile, datafilecopy, device, diskratio, db_recovery_file_dest, db_file_name_convert, duration, filesperset, for, format, from, full, strength, file, incremental, keep, (, maxsetsize nochecksum, noexclude, nokeep, not, proxy, pool, re-use, recovery, section, skip). ', spfile, skip readonly, setsize, tablespace, tag to validate. RMAN-01008: the identifier of the AfDB was: HRCS90 RMAN-01007: line 1 column 8 file: entry standard
RMAN > backup database HRCS90
RMAN-00571: =========================================================== RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =. RMAN-00571: =========================================================== RMAN-00558: error occurred during parsing of order entry RMAN-01009: syntax error: found 'distinctive sign': expected an of: ' archivelog, auxiliary, backupset channel, copy, controlfilecopy, backup, common, base data, data file, datafilecopy, remove, diskratio, db_recovery_file_dest, filesperset, format, force, file, include, keep, (, maxsetsize, noexclude, nokeep, not, pool, more reuse, recovery, section, skip, spfile, pass readonly, setsize, tablespace, tag, to). RMAN-01008: the identifier of the AfDB was: HRCS90 RMAN-01007: line 1 column 17 file: entry standard
While the instance of database HRCS90 is starting, I do hot backup by using the same commands and get the same error message with above cold backup.
My question is:
Can any folk tell me specific steps (order by order) to back up a single instance of the database in Oracle with RMAN?
Thank you.
Yes, you can restore and recover the backup, but not at the moment. You will only be able to restore and recover at the time of your backup.
For example.
If you take backup (mount point with no mode of journal archive) at 06:00 and your grave database crashes at 21:00, you will be able to restore and recover until 06:00. You will find all the changes made to the database between 06:00 and 21:00.
If you want your database to recover until 9 PM or until a point in time, then you must put your database in log mode archive, and then save the archives.
Perhaps this impact that all face you when creating physical standby DB. I'm trying to create a physical standby database Using RMAN double order a server
(pri machine) machine on standby.
Here are the steps I followed to create the above:
Step 1:-activate forced logging
SQL > ALTER DATABASE FORCE LOGGING;
Step 2:-set up a standby Redo Log
SQL > ALTER DATABASE ADD STANDBY LOGFILE GROUP 10
2 > ('/ oracle/dbs/log1c.rdo','/oracle/dbs/log2c.rdo') SIZE 500 M;
Step 3:-set the parameters of primary database initialization
SQL > create pfile='?/dbs/pfileorcl.ora' of spfile;
Edit the pfile to add the sleep settings, shown here:
Step 6:-backup of database and copy it to standby mode
This backup script must be run on primary and copied to sleep on the same mount point, run these scripts with RMAN, all files in /rman_backup need to be copied in /rman_backup on the standby server.
$rman target.
RMAN > run
{
allocate channel c1 type disk;
allocate channel c2 type disk;
backup of database format ' / rman_backup/%U';
ARCHIVELOG backup all the format ' / rman_backup %U ';
backup current controlfile to Eve format ' / rman_backup/%U';
}
Step 7:-availability of measures database
Installation of Oracle software
This should be the same version and patch group with exactly same ORACLE_HOME mount point.
Commissioning of the listener
Create and start a listener on the database of sleep by using NetCA, or create listener.ora in $ORACLE_HOME/network/admin
A password file must be created on the primary and copied to the standby site. The sys password must be the same on both sites. Copy orapworcl in $ORACLE_HOME/dbs and rename the file in orapworcldr
Step 11:-create for Oracle mount points
Mount point must be created on the standby server with the same convention used in primary education, which includes the location for controlfiles, redo logs, data files, destination of the newspaper Archives and alert logs.
$ mkdir Pei/u01/app/oracle/oradata/orcl /.
$ mkdir Pei/u01/app/oracle/flash_recovery_area /.
$ mkdir Pei/u01/app/oracle/admin/orcl/adump
$ mkdir Pei/u01/app/oracle/admin/orcl/bdump
$ mkdir Pei/u01/app/oracle/admin/orcl/cdump
$ mkdir Pei/u01/app/oracle/admin/orcl/udump
Step 12:-use RMAN to restore the backup and standby configuration
Connecting to RMAN and run the following command to create the database pending, this must be performed on the standby server after the backup copy and the tnsnames parameter.
We currently use RMAN scripts to back up our 11 GR 2 as Linux RAC databases to ASM. My company is thinking using Netbackup for data backup.
How does the netbackup with rman? One way I can think is RMAN will backup of database in ASM and netbackup will recover backups from the box of ASM and passes it to a remote site (I don't know if netbackup can read ASM).
Are there other ways I can use netbackup with or without RMAN?
Thank you in advance.
No. I say that rreads RMAN frfom of ASM data files and sends them to NetBackup. NetBackup disseminates the incoming bytes on tape.
I intend to clone my PROD database to create a database of emergency with RMAN, the situation in the present case, it is that I want to use the same db_name so create spfile scp to the target server, run a level 0 backup dB, create the same file structure as well, but I'm confused because when I connect to RMAN to perform cloning as you can see...
RMAN> run {
allocate auxiliary channel c1 device type disk;
allocate channel c2 device type disk;
duplicate target database to 'prod1';
}
-Is it possible that crushes my source PROD1 database
-C' is ok, if I run the clone with the database of the source open with few users working? Even he will operate a backup, this will obviously have a performance impact but also the integrity of the data? I'm not sure what other files of this procedure will be used in clonning.
-Should I enter into channel c2 backup full path to the source server?
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