RMAN design
Hello again,
Just another question related to the default RMAN control file repository OR a separated RMAN recovery catalog.
I have multiple databases running on the same hosts or on different hosts. Do you recommend setting one centralized RMAN recovery catalog on a specific host or setting up multiple RMAN recovery catalog each one sitting next the instance it is registered to ?
Some databases are really small others are quite huge.
Your ideas/suggestions are welcome.
Thanks a lot !! Bye
Edited by: 791569 on Aug 30, 2010 2:39 AM
1. If you set up RMAN catalog then it will be easier to manage lots of database which backed up by RMAN. But if catalog database has been crashed then it will be disaster for you. So you have to maintain your RMAN catalog database carefully. If your catalog database has been destroyed you can take the RMAN backup with no catalog option.
2. In your company if you manage more than 10 database you can use catalog otherwise no catalog options will be helpful.
Regards
Asif Kabir
-- mark your helpful post as correct/helpful.
http://forums.oracle.com/forums/ann.jspa?annID=885
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Hi all,
I have a question about a proposed Oracle 10g Release 2 RAC design for a 2 node cluster.
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Why do we use RMAN DUPLICATE for cloning DB on a different server ?
DB version : 11.2.0.2, 10.2.0.5
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run {
restore database ;
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alter database open resetlogs ;
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run
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nofilenamecheck
pfile=/tmp/aux.ora;
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>
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Platform: Solaris 5.10 SPARC
Helloo..
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1. If you were to design a Backup strategy, would you backup to Disk first and then get the Sysadmin to
copy to Tape OR backup directly to Tape?
2. Do you guys backup Level_0 backup on TapeA , Level_1 backups on Tape B
and Archivelogs, Control file , Spfile on TapeC
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c. Slow process
Writing directly to Disks
Adv:a. For smaller databases with less retention.
b. Faster backups locally
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3. Refer #1.
hth.
Edited by: user11155666 on Jun 2, 2011 5:52 PM -
Some queries on Data Guard design
Hi, I have some basic questions around Data Guard design
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I guess you could be trying to reduce node to node latency if some of the standby were quite distant from the primary
Q5. Is it possible to convert a Logical Standby back to a Physical one ?
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thanks,
JimHi,
Q5 . Is it possible to convert a Logical Standby back to a Physical one ? --- Yes it is possible .
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SESSIONS ACTIVE
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-- see alertlog.
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NAME OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS PROTECTION_MODE PROTECTION_LEVEL
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shutdown abort
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sqlplus / as sysdba
startup nomount
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recover managed standby database using current logfile disconnect from session;
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NAME OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS PROTECTION_MODE PROTECTION_LEVEL
AZKKDB READ WRITE PRIMARY TO STANDBY MAXIMUM PERFORMANCE MAXIMUM PERFORMANCE
Q2 . . Is it normal practice to backup your standby database as well – if so why ?
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Please see link : http://blog.dbvisit.com/rman-backups-on-your-standby-database-yes-it-is-easy/
Thank you -
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Hi,
I'm using Oracle 10g, RMAN and TDPO (the TSM client for Oracle). I'm
trying to do a PITR to a non-production machine, but RMAN is intolerant
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This is from the Microsoft Vista support page Roxio is listed :
http://support.microsoft.com/kb/947562/en-us
let me know if this helps!
Click Accept as Solution for posts that have solved your issue(s)!
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Why do we need a connection to the Source DB for RMAN DUPLICATE ?
Version Info: 11.2.0.3/RHEL 5.8
We want to clone a Production DB to a test DB.
Prod DB size: 100gb
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In the Test server , we will be running RMAN DUPLICATE command after connecting like below
rman target sys/passwd@SID_OF_SOURCE_DB auxiliary /We have everything we need in test server to do the cloning ie. all the RMAN Backup pieces. Then why does RMAN connect to the source DB ?from [url http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta020.htm] here
Backup-based duplication without a target connection
RMAN creates duplicate files from pre-existing RMAN backups and copies. The DUPLICATE command must have been issued with the DATABASE clause. This form requires a connection to an auxiliary instance and a recovery catalog.
This mode is useful when the target database is not available or a connection to it is not desirable (as mandated by security policy restrictions or a firewall).
Backup-based duplication without connection to target and recovery catalog
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Edited by: swapnil kambli on May 21, 2013 1:36 AM -
I have many oracle databases on two different sun servers.
In RMAN script I am copying some files (like password, tnsnames etc) by using host command. It works fine on one sun box but on other I am getting this error
host command complete
released channel: d1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06135: error executing host command: Additional information: 512
Additional information: 4
This error I got when I run it via oracle schedular. If I run on command propmt it ask me to enter ORACLE_SID for each 4 times (I have four host commands) and after entering that it is fine.
As my knowledge in oracle + unix is less but it looks to me that it might be some environmental variables settings. Can anyone get rid of this error. ThanksAccording to oracle note 75003.1
Where are oraenv and coraenv found and how do they get created on various
Unix platforms?
These scripts are used to allow the DBA to set a common environment
for all users and make it easier for users to move between databases.
By setting the variable "ORAENV_ASK" to yes, the user will be
prompted to enter the <SID> value of the database they would like to
access. If "ORAENV_ASK" is set to no, the current value of "ORACLE_SID"
will be used.
Next, the script 'dbhome' is called to determine the "$ORACLE_HOME"
for that SID and set "$ORACLE_HOME" to the corresponding value.
'dbhome' will also add "$ORACLE_HOME/bin" to the user's PATH and
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These scripts can usually be found in:
/usr/local/bin, $ORACLE_HOME/bin HP-UX
/usr/bin, $ORACLE_HOME/bin Solaris, AIX
Both oraenv and coraenv are created during install and copied to
your "/usr/local/bin" when "root.sh" is run during post installation
steps.
Use oraenv when you are using the Bourne and Korne Shells.
Use coraenv when you are using the C shell.
These scripts perform the same functions, but are designed
for the different shells. -
RAC 10gr2 using ASM for RMAN a cluster file system or a Local directory
The environment is composed of a RAC with 2 nodes using ASM. I have to determine what design is better for Backup and Recovery with RMAN. The backups are going to be saved to disk only. The database is only transactional and small in size
I am not sure how to create a cluster file system or if it is better to use a local directory. What's the benefit of having a recovery catalog that is optional to the database?
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I do not see where he setenv again to change to the second instance to run RMAN to backup the second instance. It looks to me that the backup is only done to the first instance, but not to the second instance. I may be wrong, but I do not see the second instance backup.
Kindly, I request your assistance on the steps/connection to backup the second instance. Thank you so much!! Terry -
Need to Configure RMAN backup in 8.1.7.4.1
I have been asked to design a backup and recovery strategy for our production and test databases
I got 2003 Enterprise server with 3 disks of each 300gb.
There are 10 databases running in versions 8,9,10 with 5 production and 5 UAT database.
The sum of the Db will be around 70Gb
I got 200Gb free space in 2 disks
how can i design a BACKUP startegy here. I have palnned to use RMAN backups.
Any useful links and proper guiding from you people expected.
Right Now there is only export backup in Night.
I have informed them we are running the Db in risk,.They have asked me to comeup with a plan.
Any help please
Message was edited by:
Maran.EMaran,
>
Is it possible to backup 8.1.7.4.1 by 10g database.
i can create a recovery catalog in 10g and wil i be able to backup a 8 and 9 Db
>
I have test 10g catalog with 9i. No idea with the 8i.
I guess, 8i(817) is more comportable with 10g and it should work.
Have a try with your test database and also cross check the metrix with different version in the Metalink.
Jaffar
Good news Maran,
I just come across of the following note which explains the RMAN compatibility between 8 - 10g versions.
RMAN Compatibility Oracle8i 8.1.7.4 - Oracle10g 10.1.0.4
Doc ID: Note:307022.1
In case, if you dont have access to metalink, the punch line from the note is :
SUMMARY
=======
Is best practice to use 'rule of thumb'. Always used the target database RMAN executable and the latest release of Oracle for your recovery catalog.
If you are going to use a lower version RMAN executable to backup higher version databases remember you are restricted to only the features available
in the database your using. But the executable you are using must be able to handle the feature or configuration you are using. Case and point the
RMAN-06466 error above where in 9.0.1 there is no concept of "AS BACKUPSET".
Because configure commands were executed some options in the controlfile were not understood when parsed by the lower version RMAN.
Message was edited by:
Syed Jaffar -
We had an Oracle DBA come in and set up RMAN to do the following:
1) Create a full backup every Sunday evening
2) Create an incremental backup every other evening
3) Create a backup of the ArchiveLog every hour.
This has been done using batch files launched with the Windows Scheduler. I am trying to verify that I am in a "safe" place as regards to backups; in other words, that in the event of a crash, I can restore my data.
Here are my problems:
1) I came in Tuesday, and every file prior to Monday had disappeared. There are some commands in the batch file that say DELETE NOPROMPT, which seem to be designed to delete obselete backup files, but why would they have deleted my full backup from Sunday?
2) I run a List Backup; all of the backups that are shown in the list have an incremente level of 1. Don't I need a level 0 to get a good backup?
3) I have seen many documents that refer to RESTORE VALIDATE. However, there seems to be some contraversy about it's usefulness. I need to know, beyond a shadow of a doubt, that I can successfully restore my database from the existing backup files. Will this command give me this information? If not, how can I know for certain?
The bottom line is, I need to know for certain that my backup scheme is valid. Any suggestions would be helpful. Thanks.
Geoff CallaghanNothing you've written about how the consultant did their job puts a smile on my face.
1. RMAN should be running from DBMS_SCHEDULER not an operating system job.
2. The deletes are being done in the operating system shell not using RMAN's "DELETE OBSOLETE"
3. You don't understand what this person did and have no ability to understand whether they did something poorly as it appears is the case.
My advice is to bring in someone else to redo the work, to do it properly, and make sure this person trains at least two people in your organization on what they did, how it works, and how to maintain it. -
Have requirement to migrate 100+ applications (400+ Oracle databases) to Exadata X2-2. Project timeline is 12 months to move everything to Exadata environment.
Current state of databases:
===================
1. All databases are in 11.2.0.2/3
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3. Mostly OLTP applications
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========
1. How many Exadata Full RACKs would be required to buy so that all these databases workload would be accommodated?
2. What is the best way to use these FULL RACK - meaning - should we break down the FULL RACK to Quarter RACK or to HALF RACK ? what is the methodology to follow to design this?
3. Is there any impact of availability of usable storage if a FULL RACK is broken down to HALF or QUATER ? how much % waste of storage and why the waste?
4. Due to cost, is it advisable to use Non-Exadata environment for development/Test databases?
Thanks,1. How many Exadata Full RACKs would be required to buy so that all these databases workload would be accommodated?
Without information on transaction activity, database size and many other factors here is no way to give a solid answer. Have you had Oracle or another firm experienced with Exadata migrations evaluate the environment, this would be the best way to get an answer to this question.
2. What is the best way to use these FULL RACK - meaning - should we break down the FULL RACK to Quarter RACK or to HALF RACK ? what is the methodology to follow to design this?
Best way to use Exadata is to utilize the features of the environment, ie. Resource management and instance caging and instance placement. By evaluating the databases and instances and placing them properly and then applying resource management and instance caging you can have a good level of control of resource utilization. Breaking a Full rack down to 2 half racks or 1 half rack and 2 quarter racks while possible and has been done typically is done in cases where there is a firm requirements to divide the workload and based on SLAs promise not to share any resources between the environments and must dedicate hardware for those environments.
3. Is there any impact of availability of usable storage if a FULL RACK is broken down to HALF or QUATER ? how much % waste of storage and why the waste?
Yes, if you break the Racks apart physically you will loose some space utilization due to mirror required free in the configuration the amount that you would lose will depend on how many physical Racks you break down into. In an Exadata configuration the tolerance is to be able to lose an entire cell without impacting availability. The more you break down the rack the more cells have to be used to ensure that a lost storage cell can still happen therefore usable space is reduce by that amount.
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Rman bis new hard disk ( with my email )
bjr
Je fais une sauvegarde par rman comme ci dessus
ceci est un test en cas du crach du serveur
Bck_full.bat ( fichier bat)
rman target internal/0490@act nocatalog cmdfile d:\Essai_Rman\RmanBckFull.rcv
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backup
full
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filesperset 6
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(database);
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2 fichiers se sont crees , je les sauvegarde dans un endroit sur avec les fichiers
arcs
je remets un nouveau disque dur
- installation oracle8i
- creation tables users grants ok
je copie les arcs dernierement sauvegardes
je lance la restauration rman comme ci dessous
Rec_Full.bat
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pause
RmanRecFull.rcv
run {
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recover database;
release channel d1;
Mon Analyse est t'elle correcte ????
Quelles precautions supplementaires doit je prendre ?
Doit je sauvegarder aussi les redo logs et les control files ??
merci
mail is [email protected]Cyberpundit wrote:
Why is it not available "in the other direction"? What is Apple trying to achieve, or limit? Looks like this requirement is one that MANY PEOPLE face.
Long standing design of iTunes, presumably to prevent people casually swapping media with each other and keep the record companies on board.
I do not have any backup of my old library etc. Because all the stuff is on my iPhone. Why do I need a separate backup?
I guessed. Because as you've just found out extracting your media & other data from your iPhone is a non-trivial task.
Could you please recommend an external software program then that will allow me to:
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2. Then when iTunes has "freshly synced" this new iPhone and thereby erased everything because this is what Apple thinks is "good functionality", the said app should pull all the stuff back into iPhone.
PLease tell me there's a software (paid or free) that does this?
Suggested software listed in the user tip. I don't have a personal recommendation. It isn't quite as simple as buying the software and pushing one button. iTunes can extract all your iTunes purchased content, 3rd party tools for anything else. You need to work through the steps given to get your device to see the new library as the "home" computer and to preserve contacts, calendar info. and application data.
tt2 -
Hi,
I have to use Rman with Time Navigator (quadratec tool). I would like to know if someone did an implementation with these tools and there is some problems.
Thanks
StephaneWe've used BRU Server for several months now. Works reliably, and Tolis Group has been actively updating their GUI app monthly to incorporate user requests. Version 1.20H is a marked GUI improvement over 1.2.0. I don't think you'll beat the price of $600 (25 clients) + $200 (3 year support) for robotic tape support.
We had been using Veritas Netbackup on a venerable SGI/IRIX server before Xserve/BRU, and although BRU definitely does not have all the bells and whistles of VN (mainly database support), it is a fraction of the price and we never needed any of those features anyway. BRU is also vastly easier to use/deploy than more sophisticated offerings. BRU represents a good fit for small shops without enterprise scale protocols.
BRU makes a LE version (US $125) with limited robotic support for local file systems, but last I used it - you cannot do true incremental backups on hard disk since a unique archive name is not used for each night's backup. In contrast, BRU Server utilizes a random hexadecimal name for each archive file. I suppose a Apple script, unix script or user intervention could make sure each BRU LE archive name is unique.
BRU has one more limitation that may affect you: BRU Server 1.2.0 can only have one volume designated as a backup destination. This "stage" can be swapped out by the user with other volumes, providing that the mount point is named identically or you modify the preferences to reflect the new name. I am not sure why this limitation exists.
If your only backing up to disk, or would rather have random access to your files (versus an archive file that you need BRU to restore) - you may consider a free solution like RsyncX before plunking down money on a tape-centric solution. -
RMAN in an eBusiness Suite environment.
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For example is it possible in RMAN to synchronize database backup with (say) $APPL_TOP?
Does anyone have any experience that they would like to share of trying to implement RMAN in an eBusiness environment?
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Thank you.First of all, Applications (E-Business Suite) consists of two main parts - database and applications file system (APPL_TOP and others). You can use RMAN for database backup - as well as you can use it for any Oracle database. And for Applications file system backup you have to use other backup tools - RMAN is not designed for file systems backup.
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