Restoring - But possible corrupted system data file on tape?

Is ther any way of recovering a database with a bad system data file (system tablespace file)?

As you know system tablespace is heart of the Oracle database.
It depends how you are doing your recovery, how many valid backupset are available for RMAN for restore and recovery options.
You can always check the following to make sure you have good backups.
RESTORE DATABASE VALIDATE;
If you want to know what are file required for restore and recovery:
RESTORE DATABASE PREVIEW;
Jaffar

Similar Messages

  • Possibly Corrupt Catalog .Dat Files - A Serious Problem?

    This question continues from http://forums.adobe.com/thread/804620?tstart=-1.
    The three .dat files (backupCt.dat, collstatus.dat and tagstatus.dat) in one of our Adobe\Catalog Folders subfolders ("Paintings") may be corrupted.  Whereas these files appear to be rewritten routinely, along with the thumb.5.cache file, each time Adobe Photoshop Elements is opened to one or another of our catalogs, the three files have not been rewritten for the Paintings catalog since 3/9/11, although that catalog has been opened almost every day.  This situation came to my attention because the three files showed up in error messages in the Second Copy backup program I run every night, saying that the three files could not be copied because access is denied.  In my previous post (referenced above), MichelBParis suggested that I could delete those files safely and that they would be rewritten when the catalog was next opened.  However, I can't delete the files, rename them, or move them elsewhere because of the access denied status (I get an error message asking me to be sure that the disk is not full or write protected [which it is not] and that the files are not currently in use [which they are not, at least as far as I can tell -- Adobe Photoshop Elements has been closed when I have attempted all procedures, and I don't see any other applications or processes running, as per Task Manager, that I can immediately identify as belonging to Adobe).  I have thought about restarting the computer in Safe Mode to see if I can delete the files then.  However, I am a bit nervous about trying this, as the Paintings catalog in question is huge and of enormous importance to my wife -- I don't want to do something that might inadvertently make it impossible to access or use that catalog (as happened to us once before when we were using Adobe Photoshop Album Starter Edition 3.2, and the catalog became corrupted).
    My questions:
    (1)  Does anyone know what these three .dat files actually do?  I've not so far been able to find this information via Google.
    (2)  If these files remain in their present state (access denied and non-rewritten), do we run the risk of ending up with a serious problem down the road and loss of our ability to access the catalog (or some other loss of functionality)?
    (3)  Would it be safe for me in fact to delete these three files if I can find a way to do so (e.g., in Safe Mode)?
    (4)  If it would, indeed, be safe for me to delete the files, and if that would seem to be a next step to try, are there any suggestions for how I could go about doing so?
    (5)  Any other suggestions about how I can get the Paintings catalog back in proper shape?
    Thanks for any help anyone can provide!

    Most likely the files are not corrupt if your basis is that the backup program cannot open the files.  However, I would be concerned about the security settings in the files if multiple users need to access the same catalog.  This might be why you aren't seeing any changes to the time/date because one of the user doesn't have rights to modify the file.
    Please tell me what OS you are running and what version of PsE?
    For PsE 9 (and I think 8), you can modify the media-analysis options from the Organizer...
    Menu 'Edit->Preferences->Media-Analysis'
    Uncheck either checkbox as shown in the red circles
    After hitting 'OK', exit the organzier and reboot.
    See if you can access the .Dat files.
    Instead of copying the catalog, I would just create a new empty catalog.  This can be done as follows...
    Menu 'File->Catalog...'
    Make sure you note where the current catalog is located before you continue.  The name of the current catalog is found in the box at the bottom of the dialog with [Current] added to the end of the name.  Now...
    Click on 'New...'
    Enter the new catalog name.
    Click on 'OK'
    The organizer will use the new catalog.  You will now see nothing is in the organzier.
    See if you can access the .dat files.  You may need to reboot.
    You can select the previous catalog as follows...
    Menu 'File->Catalog...'
    Click on the previous catalog name
    Click 'Open'
    There is something not right with the security settings especially if you want multiple users to be able and access the catalog.  As far as how things got messed up -- I have no idea.  Some possible options are that one user has more rights than another user.  The one with more rights created the files just fine but the other user has no way to read the files.  Or someone was messing with the security settings.
    Security settings in Windows can get very complex very fast. I hesitate attempting to walk through this can be done because there could be many factors which has caused this issue.  You could have specific security settings on the files which override parent directory security settings.   Or the parent directory security setting could simply be wrong.
    You first need to determine if both users need write access to the catalog.  If this is the case and they are not administrators, I would go ahead and set the security settings on the folder containing the catalog.  You do need to be careful so you don't remove security settings such that you cannot even make changes to the security settings.  Make sure you give full control to "This folder, subfolders, and files" in the Permission Entry dialog.
    I would encourage you to look at the effective permissions on all files in the catalog after making any changes and before you start up PsE again.  I have no idea what would happen if the security setting was wrong on a single file.  This could cause a corrupted catalog depending on how PsE is written.

  • How can i recover my database after losing system data file.

    hi everyone,
    how can i recover my database in the following scenario.
    1. offline complete backup taken 2 days ago. database was in archive mode.
    2. today i lost my system data file, and also lost my all archived files.
    3. i started up the database but, the following error was generated.
    SQL> startup
    ORACLE instance started.
    Total System Global Area 135338868 bytes
    Fixed Size 453492 bytes
    Variable Size 109051904 bytes
    Database Buffers 25165824 bytes
    Redo Buffers 667648 bytes
    Database mounted.
    ORA-01113: file 1 needs media recovery
    ORA-01110: data file 1: 'D:\ORACLE\ORADATA\ORCL\SYSTEM01.DBF'
    4. i copied the system data file from backup and wrote the following statement, to recover the database.
    SQL> recover datafile 1;
    ORA-00279: change 2234434 generated at 07/15/2009 10:52:10 needed for thread 1
    ORA-00289: suggestion : C:\B\ARC00051.001
    ORA-00280: change 2234434 for thread 1 is in sequence #51
    Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
    now i don't have any archive file. is there any chance to recover the database ?
    R e g a r d s,
    Asif Iqbal
    Software Engineer,
    Lucky Tex, Karachi,
    Pakistan.

    now i don't have any archive file. is there any chance to recover the database ?If no archive log files are available you can't recover the datafile.You need to have all the archives from the time of offline backup was taken till the system datafile is lost.
    Anand

  • System data file is almost full around 17G

    Hi,
    I have put audit in my database.So, because of the more data in sys.aud$ table my system data file almost reached 17g..
    can i reduce size of the system data file?
    what is the solution? I am using 10g release 2.
    Thanks in advance.

    RMAN is a Physical Backup-Restore method. It will restore and recreate the datafiles to be the same on-disk size as they were at the time of the backup.
    Export-DropDatabase-CreateEmptyDatabase-Import is used to "shrink" databases if there is a lot of wasted space.
    Normally for non-SYSTEM tablespaces, it is simpler to create a new tablespace and move data into the new tablespace and then drop the older tablespace so as to not have to use Export-Drop-Create-Import.
    However, you cannot use this method for SYSTEM so you'd have to Export-Drop-Create-Import as the SYSTEM tablespace is your issue.
    Make sure that you have practiced this method and verifed that there are no issues with database accounts, schemas, privileges, database links, indexes, datatypes, storedprocedures etc after you import into a test database before you try this on production.
    Hemant K Chitale

  • HT201442 I am got error while trying to restore,, but i just only error file with 3194. I try many step by install lastest version and fix host file, but still fail. Anybody can give me any key point to solve this problem? Thank you

    I am got error while trying to restore,, but i just only error file with 3194. I try many step by install lastest version and fix host file, but still fail. Anybody can give me any key point to solve this problem? Thank you

    Error 3194:
    This device isn't eligible for the requested build
    It means that Apple has stopped signing the version of iOS that you have, try downloading the latest iOS version, then try Restore again.

  • TS2771 Itunes says my ipod touch needs to be restored but I will lose data, what do I do?

    I was trying to update my ipod touch and itunes says it needs to be restored but I will lose data. What do I do?

    If you synced your iPod Touch with iTunes, you already created a complete backup of all its content.

  • Restore steps if lost some data files?

    I lost some data files in database and I am not sure what datafiles are. But one think sure is the control and redo log files are here. For this case, I don't have to restore contronl files and archivelog files. Please correct me if my idea is wrong.
    Steps as follows:
    ===========
    restore database;
    recover database;
    alter database open;
    Please advice if the steps are wrong.
    FAN

    Hi user623471!
    Yes you don't have to restore control, redo log and archive log files in the case that they are not lost. To find out which datafiles are lost do the following steps:
    <pre>
    sqlplus / as sysdba
    --Make a checkpoint
    ALTER SYSTEM CHECKPOINT;
    --query v$recover_file to see which files need recovery
    SELECT file#, error, online_status, change#, time
    FROM v$recover_file;
    exit
    </pre>
    Now start rman an restore only the files shown by v$recover_file.
    <pre>
    rman target /
    restore datafile x, y, z;
    recover database;
    sql 'alter database open';
    exit;
    </pre>
    x, y and z are placeholders for the filenumbers shown by the file# column of v$recover_file.
    Hope that helps!
    yours sincerely

  • HT1414 I never synched my iPad to a computer, and I forgot my passcode and am now locked out.  I read that I need to do a restore, but will lose all my files.  Is there any way to get into my iPad but NOT lose my photos and files?

    I forget my passcode, and got locked out of my iPad.  I never synched, so my files aren't backed up.  I read that I need to restore, but will lose everything.  Is there any other way to not lose my photos and files on my computer?

    If you cannot remember the passcode, you will need to restore your device using the computer with which you last synced it. This allows you to reset your passcode and resync the data from the device (or restore from a backup).
    If you restore on a different computer that was never synced with the device, you will be able to unlock the device for use and remove the passcode, but your data will not be present.
    You may have to force iPad/iPod into Recovery Mode
    http://support.apple.com/kb/ht4097

  • Windows Phone 8.1 Universal: VS 2013 deploys app to device but does not delete data file in roamingfolder and roaming is not activated.

    I am using VS 2013 to develop a Windows Phone 8.1 Universal app.  When I deploy to the device (my phone), the old data file that I had stored in the roamingfolder previously continues to be used.  I have uninstalled the app after being deployed,
    I put code in the app to delete the files individually from the roamingfolder and used ClearAsync(). That worked until I deployed the app again and then the old files came back.  I have not associated these apps with the store yet so roaming should
    not be working. The desktop app does not have this problem, when I uninstall it the files are deleted.
    In the phone app properties debug tab, I have the Uninstall and the reinstall my package checked for all configurations.  I have looked everywhere I can think of for these old files: laptop c:, phone tempfolder, localfolder, etc. thinking VS is reinstalling
    them from somewhere when deploying the app but I cannot find them.  If I change the phone app to use the localfolder, the old files are not used.
    Is this just the way it is if I use the roamingfolder or is there a way to delete these old files?
    Any help would be greatly appreciated.  Thanks.

    Hi MV12,
    >>When I deploy to the device (my phone), the old data file that I had stored in the roamingfolder previously continues to be used
    Yes, it is designed to work like that, please refer to this document for details:
    #Accessing app data with the Windows Runtime (Windows Runtime apps)
    https://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh464917.aspx#roaming_app_data
    Roaming data for an app is available in the cloud as long as it is accessed by the user from some device within the required time interval.
    If the user does not run an app for longer than this time interval, its roaming data is removed from the cloud.
    If a user uninstalls an app, its roaming data isn't automatically removed from the cloud, it's preserved. If the user reinstalls the app within the time interval, the roaming data is synchronized from the cloud. The current policy specifies
    that this time interval is 30 days. Location is available via the roamingFolder property.
    >>Is this just the way it is if I use the roamingfolder or is there a way to delete these old files?
    No, you will have to wait.
    We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
    Click
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  • Possibility of capturing data file name in SQL * Loader

    Hi,
    I have a requirement to capture the data file name in the staging table, is there a way that i can capture it in SQL * Loader or any other way of doing it.
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    Thanks,
    Genoo

    Hi Genoo.
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    You may use the above command mentioned in my previous post (if Linux) to populate the Test.csv file with the available file name in the directory, i.e:
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    Please refer notes:
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    Script To Generate SQL*Loader Control File (Doc ID 1019523.6)
    SQL*Loader performance tips (Doc ID 28631.1)
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    How to Get Data from Existing Table to Flat File Usable by SQL*Loader (Doc ID 123852.1)
    Also see link:
    10 Oracle SQLLDR Command Examples (Oracle SQL*Loader Tutorial)
    Thanks &
    Best regards,

  • Restore my DB with the data files.

    I needed to re-install my Windows 2000, so I lost my Oracle, so I have only my data files, I'd like to know if I can get my Data on it.

    What datafiles you have. Do you have control files and other dbf files or not. If you do then you might recover your old database. You have to install exactly the same Oracle and Database configuration that you had before. Then replace the old db files with your old control files. It should come-up fine. Give a shot.

  • Purchased a Bold 9900 but cannot transfer all data/files from my previos Bold 9000

    Using Blackberry Desktop Software for PC, using the option of changing device, followed the software instructions and connected first the original device Bold 9000 and copied everything; this step went thru ok. Then disconnected the 9000 and connectec the 9900, copying process starts but stops suddenly indicating an error because of not having correct blackberry app software. I have not been able to move from here. Tried twice to repeat but ends up dame. Thanks for the help. I have a new phone that I have not been able to transfer any data from my previos one.

    Hey kaki,
    Welcome to the BlackBerry Support Community Forums.
    Just to clarify are you just doing a standard backup and restore or a switch device wizard?
    Also can you provide the full error message you're receiving?
    -ViciousFerret
    Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
    Be sure to click Like! for those who have helped you.
    Click  Accept as Solution for posts that have solved your issue(s)!

  • Final cut update corrupted my data files

    I downloaded the new update to Final Cut X
    .. everythinng was working fine before this download... and I thought it was working fine after it.. i edited a video.. and it was working fine.. but when I went to export it.. it wouldn't export. I clicked on Youtube.. and nothing happened... i couldn't see anything working.
    So i went to export it as a master file to see if that would work... and then it told me I had to update old files to make things work.. and it then told me i have corrupted files ( 2 of them)...  I tried to just delete them but it won't let me..
    So i tried to contact Apple...  and the Final Cut support team wants $800 to answer questions.. or $100 per question. For a $299 program? .. seriously?
    anyway..
    I can't delete these files.. can't fix things.. i went to the Library folder and reset the preferences and still nothing works.. it now just says FInal cut is shutting down because to maintain the integrity of other files..
    does anyboidy know what to do?
    I don't exactly want to have to spend $800 for a problem that APPLE created with their download. They created the problem and they won't fix it. I find that incredibly arrogant. If their download created the problem shouldn't they help fix the problem?
    in any case.. anyone have a solution ?

    Ron Camilleri wrote:
    ...Isn't it funny how the hard drive worked fine before and after the conversion the only files that magically disappeared were the ones that went through this conversion process. If a hard drive is corrupted shouldn't it have problems with other files too? All the other files are there on the hard drive and work fine...
    No, actually not. That is exactly what is seen again and again and again when the HD index becomes corrupted!
    I have seen people wonder 'where did that file go.. oh, I will find it latter...' and a [day|week|month] latter, the complete disk is useles.
    If you are VERY lucky, Disk Utility will try to fix it, but it might only do so. The problem with D.U. is that it tries to repair the current index, not rebuild it.
    Only tool I have ever found to be able to do so, is DiskWarrior.
    And to my knowledge, FCPX does not have any rutines to delete the files during the update! It will ask to update the Event & Project files, but that is only the XML files, not the media files!
    This screems: BACKUP NOW and do NOT write any other file to the disk! That is, if you have anything valuable on the disk...

  • "The file is possibly corrupt. The file header checksum does not match the computed checksum."

    Yesterday evening, I accidentally dropped my Probook 6565b. It bluescreened with strange red boxes around the text, so I thought the screen or something was damaged. I emergency shut down the computer, and started it up again. It was visibly slower, but I was able to use it, so, relieved, I turned it off again and went to bed.
    This morning, I tried to turn it on again. It started out normally (and I am able to access the start up screen) . But afterwards, it gives me a blank dark blue screen (like before you see the Windows logo) and it stays there for around 15 seconds before it gives me the error.
    I have no idea what to do, so any advice would be greatly appreciated!
    I think my operating system is Windows 7, but I'm not sure.
    Thank you.

    I see you have damaged both your hardrive(hardware) and your operating sytem (corrupted too, software)
    You may want to run an diagonstic test of your hard drive complete before trying to reinstall windows.
    Press ESC right after power button and repeatdley and look for Diagnostic test and start up test and hard drive test.
    Please report results.
    Sorry because of different timezone I might not be able to help/reply you right away.IF that happens I deeply apologize!
    **Click the White thumb if you like the answer.**
    **Please mark Accept As Solution if it solves your problem and only solves your problem, if you have any more questions please ask, this also helps others to solve related issues.**
    Feel yourself like home here, we are all happy to help, if you have an question reply or start a topic or pm me or an expert.

  • Possibly corrupt prefs.js file. Need help with this file please.

    I've been having a problem with sending/receiving text messages in Yahoo Messenger and I think I've narrowed it to the prefs.js file in Firefox. I'm using Firefox 3.6.25 on Windows XP sp3. The Yahoo Messenger window would not open when the appropriate mobile phone link was clicked. I uninstalled/reinstalled flash without change. I cleared cache, etc., without change. I created a new Firefox profile and I was able to get the Yahoo Messenger window to open. When I copied the prefs.js file from the old profile to the new profile, I encountered the problem again. I opened the prefs.js file with wordpad and noticed that editing should occur in about:config in the currently running Firefox browser. I briefly compared the two about:config tabs from the working profile and the non-working profile. They were significantly different. How do I make a copy of one so that I can paste it into wordpad and make the editing of the other one easier? Where can I find information about the individual parameters and their settings?

    Hi,
    Please see [[http://kb.mozillazine.org/About:config_entries this.]
    [http://kb.mozillazine.org/About:config about:config]
    You can try to '''Reset all user preferences to Firefox defaults:''' and '''Make Changes and Restart''' in the [https://support.mozilla.org/en-US/kb/Safe%20Mode Firefox Safe Mode] start screen which would also hopefully solve the issue. You can also try to manually '''Reset''' to defaults the modified entries by right-clicking on the bold entries (user set) in about:config. Clicking on the '''Status''' column header would sort the entries between user set (modified) and the defaults.
    An easy way would be to create a [https://support.mozilla.org/en-US/kb/Managing-profiles new profile] and [https://support.mozilla.org/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile?s=profile&r=1&e=sph&as=s copy/transfer the needed personal data] from the old profile and start using the new profile. You can then delete or troubleshoot the old proile. Firefox stores your personal data and settings in [http://kb.mozillazine.org/Profile_folder another location (profile folder)] separate from its [http://kb.mozillazine.org/Installation_directory folders/files]. A new profile would have the default Firefox settings in '''Tools''' ('''Alt''' + '''T''') > [https://support.mozilla.org/en-US/kb/Options%20window Options] and [http://kb.mozillazine.org/About:config about:config], and usually would also be empty of '''Extensions''' and themes ('''Appearance''') in '''Tools''' > '''Add-ons''', and their settings. Also, a new profile would have no previous stored website cache/cookies/data/preferences: '''Tools''' > [https://support.mozilla.org/en-US/kb/Clear%20Recent%20History '''Clear Recent History'''].
    [https://support.mozilla.org/en-US/kb/Profiles?s=profile&r=2&e=sph&as=s Profiles Howto]
    [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder & Files]

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