Question about backup validate command datafile

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• Question about backup of FRA

  Hi all.

  I use 11g Rel2 and know that there is a command area backup recovery and backup recovery. I have these two questions:

  (1) either of these commands cause a consistent backup? I mean, for the copy of the FRA process, new archiving logs could be created. RMAN all these areas will also backup the destination to spare?. I guess it does, but want to hear expert advice on this.

  (2) could someone provide an example of how restore the FRA to such support?

  Thanks in advance!

  What needs to be "compliant"?  When you save the FRA, you save backups, not the database.

  As for your specific question on the archivelogs, I don't know the exact answer, but I would ask ' what?  What of the archivelog what is written 1 millisecond before the backup ends FRA?  That he is the one who ends 1 millisecond after the backup of the FRA end?

  Suppose you write archivelogs in a regular journal 1 / minute (which in itself is a problem, but for the sake of the current issue, in fact a practical number).

  Now suppose that, today, your FRA backup takes 5 minutes.

  Now assume that the behavior is that the backup of the FRA does not get the archivelogs written after the beginning of the backup.  OK, the 5 archivelogs get backed up the next time.

  Next day, because of the overload of system or something else, your FRA backup takes 2 minutes.  And the next day, 10 minutes.  So what?

  Now, repeat above with the assumption that the backup FRA gets all archivelogs that are carried out before the end of the backup of the FRA.

  This is not saving this time, next time will get saved.

• Question about RMAN DUPLICATE command

  Oracle version: 10.2
  Operating system: Solaris 10
  
  To create a physical standby DB, I'll take full DB more backup archivelog on main site and copy it to the location of the previous day.
  I'm going to standby mode,
  

  startup nomount pfile=/path/init.ora
  rman target sys/password@primDB auxiliary /
  
  RMAN> run {
  allocate channel t1 device type disk;
  allocate auxiliary channel t2 device type disk;
  duplicate target database for standby nofilenamecheck;
  }

  1. is it true that I need to keep the full backup on the main site when you run the RMAN DUPLICATE backup server? In the affirmative. Why? We have already copied the full backup to the backup site. Right?
  
  2. why the command DORECOVER is optional?
  
  3. several archived newspapers may have been generated after that full backups have been copied to the backup site. When you run the backup site COPY command, RMAN will extract the info again newly generated primary and apply automatically in standby mode?

  Hello;

  I keep the RMAN backup on the primary until the copy is complete, so my RMAN catalog know about it. Sound cleaner this way. What magic RMAN can or can not do with it is not very important IMHO.
  Don't forget that the news of the eve doesn't have to be registered with RMAN, because it is the same database as the main. However you can use a tape with the method too, so it's probably more to do with not having to repeat the same backup if you make a mistake.

  I've never had to use a DORECOVER to a double never. Completing this task at least 30 times and I think 'optional' is not a word strong enough. According to the doc DORECOVER specifies that RMAN should recover the database after it is created. I've never had to use it. See this doc for more information:

  http://docs.Oracle.com/CD/B19306_01/backup.102/b14194/rcmsynta028.htm

  On move any what archiving log new expectations before to start the double so the news of the day before can start working immediately, without additional measures. Usually the Data Guard will begin apply immediately and have RMAN does not do anything. None of the notes has any special note for additional archives moving after starting two copies. RMAN duplicates and Data Guard apply struggling upward.

  Here are my notes on this topic: (these works on Oracle 10 or 11 of the Oracle)

  http://www.Visi.com/~mseberg/duprman2.html

  Best regards

  mseberg

  Published by: mseberg on March 17, 2012 13:07

• Question about "split partition" command

  Hello
  
  I have the following partitioned table...
  
  CREATE TABLE trans_tab
  (
  
  TRANS_ID number (10),
  DATE OF TRANS_DATE,
  CONSTRAINT PK_TRNS_ID PRIMARY KEY (TRANS_ID))
  PARTITION BY RANGE (TRANS_DATE)
  (PARTITION TRANS_2010 VALUES LESS THAN (TO_DATE ("2010-10-01 00:00:00 ',' SYYYY-MM-DD HH24:MI:SS ',' NLS_CALENDAR = GREGORIAN '")) TABLESPACE TRANS_2010,)
  PMAX VALUES LESS THAN (MAXVALUE) TABLESPACE TRANS_MAX PARTITION);
  
  Now, I intend to add a partition, as shown below...
  
  ALTER table split partition pmax trans_tab at (TO_DATE (' 2012-10-01 00:00:00 ',' SYYYY-MM-DD HH24:MI:SS ',' NLS_CALENDAR = GREGORIAN ')) in (2012 partition, partition pmax);
  
  
  The command above split partition worked well and ended quickly in the TEST environment which had only 100 records. I now intend to do in the production, which has about 90 MM records in the table. Here are my questions...
  
  (1) I will try to find how long would the "split partition" command to run into a table that has ~ 90 mm record table the command "split partition" to physically move the records or just logically to remap the records to the appropriate partition? If it is logical remapping, I guess that the split command would complement quickly even against a huge table... Could check you?
  
  (2) in the TEST environment, I checked the non partitioned status of the global and the local index after splitting the partiton and they look good? Should I be rebuild the index after splitting the partition?
  
  Thanks for your time...

  Assuming he has no line of 2012 year in partition PMAX, the SPLIT would create a vacuum PMAX anew. However, it has the maximum value of TRANS_DATE in the PMAX partition - so he must sweep the partition (or use a LOCAL index on the partition, if available). Therefore, depending on how it can identify lines, it may take a little time.

  I think that the current PMAX partition is not empty (that is, it has lines of 2011). As a result, a SPLIT will cause GLOBAL Indexes to score UNUSABLE unlesss you use the UPDATE GLOBAL INDEXES.

  Was your test with the actual number of lines to PMAX?

  Hemant K Collette

• Question about ALTER TABLESPACE add datafile on/slide

  Good afternoon
  
  As an exercise, I created a STORETABS tablespace and added a data file using the command:
  

  SQL> alter tablespace storetabs add datafile 'e:/storetabs3.dbf' size 50M;

  This successful step. A new file was created at the root of e: as expected.
  
  Following this command, I have published:
  

  SQL> alter tablespace storetabs drop datafile 'e:/storetabs3.dbf';
  
  Tablespace altered.

  The command succeeded. However, the file * ' e:/storetabs3.dbf' * has not been deleted. After re-reading the documentation found at http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_3002.htm, I feel that deleting the operating system file itself is something that must still be done manually.
  
  Question: Am I right that there is no option to cause 'alter tablespace < tablespace > drop datafile < datafilename >' remove it the o/s file? In other words, should the o/s file always be deleted manually as a separate step?
  
  Thank you for your help,
  
  John.

  John,

  Don't know what part of the documentation page you are referring to but on the same page to the following location
  http://download.Oracle.com/docs/CD/B28359_01/server.111/b28286/statements_3002.htm#sthref5437,
  He clearly staes

  Specify DROP to drop from the tablespace an empty datafile or tempfile specified by filename or file_number.
  This clause causes the datafile or tempfile to be removed from the data dictionary and deleted from the operating system.
  The database must be open at the time this clause is specified
  

• Backup validate command

  I have a few questions to clear my confusion. Someone can it clarify it please.
  
  (1) valid backup logical database checking more archivelog all take them at the same time as true backup?
  (2) that data must be in archivelog mode?
  (3) it can perform a validation control run mount State?
  
  Thank you

  Dear user9097501,

  http://download.Oracle.com/docs/CD/E11882_01/backup.112/e10642/rcmvalid.htm#i1031282

  When validating files on disk or tape, RMAN reads all blocks in the backup piece or image copy.
  RMAN also validates offsite backups.
  The validation is identical to a real restore operation except that RMAN does not write output files.
  

  http://download.Oracle.com/docs/CD/E11882_01/server.112/e10897/backrest.htm#ADMQS0933

  Note:
  
  Validating backups stored on tape can be time-consuming because the entire backup is read from tape.
  

  Kind regards.

  Ogan

• Question about backups

  Mr. Ryan Cummings recently removed from the remains of the regcure win 32 virus from my computer.  I have two, a terrabyte external hard drives that I use to keep my backups on.  If I connect the HDD to backup will it re infect my computer with regcure win 32 remains of the virus.

  Hi Ernest sharkey

  Your question has been moved by a moderator for the security, confidentiality and the forum of the user accounts for more attracted attention by experts on this subject.

• Question about backup registry cleaners...

  Hello

  Is it possible that I scan with a registry cleaner and it creates a problem in my pc but then

  the problem of surfaces 4 months later (for example when I install a new PC game)? At this point, I could

  have used the registry cleaner 16 times and have backups 16 - you try to restore the last registry

  backup and the problem won't get fixed, you must try each backup 16 - and if problem surfaces

  a year later, they could be 36 backups...

  Hope you see what I mean, honestly is it useful to use these registry cleaners?

  What is the answer of specialists?

  Thank you

  Karl

  KarlSu

  Lol the benefits outweigh the risks. If you have installed registry cleaner program, remove it and then run the SFC.exe tool.

  How to run the command "SFC/scannow" at the start or in Windows 8 and 8.1

  http://www.eightforums.com/tutorials/3047-sfc-scannow-command-run-Windows-8-a.html

• Question about backup

  When you back up data to the internet, it works both ways?  Transfer you the new data from your phone to the internet AND transfer new data about your accounts on the internet on your phone?

  The word "backup" makes it sound like the phone data on the internet.  IDK how to explain it better.

  You think of two different (but similar) things... Backup and synergy.

  Backup is the ability of the phone to automatically save certain data and settings that resides on the phone, to your Palm profile.  This would include contacts, for example, that have been created in the phone compared to another Palm profile account count as Google.  This article explains what is backed up during the backup process in webOS.

  Synergy is the ability to perform two-way synchronization between your phone and various internet accounts.  Data such as calendar and contacts that you enter on your phone using one of your accounts on the internet (like Google) are synchronized between the phone and the account... and the data that you enter directly into one of these accounts online are also synchronized.  So in this sense, the data you enter on the phone using an online account are "supported" this account online.  But generally, I think the term "Backup" will see the data that is stored on the Palm profile.

  Hope that helps.

• (Redirected) Question about backup and by default

  Asked me to back up my data system so that Dell Technical Support Engineer (Harry) to do a restore from my PC to the factory default. Other less intrusive methods that he tried to engineer were not enough to solve my problems. This gives, I have a technical question. Can I use the Dell system programs and backup data on a USB hard drive? I guess the answer is Yes, however, my concern is that if the PC is returned to the factory, probably a copy of the restore process image, then, if I'm running Dell system programs and restore data Back-Up, this process could put the files corrupt system which caused problems and we're back where we started? Please advise on how this backup process should be done. I've always backed up my data, but never had to go through this process.

  Hi Rayk18,

  Please repost this in the forum Microsoft OS for faster assistance. Please post if you have a laptop or desktop computer and the operating system, like Windows Vista, 7, or 8.

  http://en.community.Dell.com/support-forums/software-OS/f/3524.aspx

• General questions about backup, restore, upgrade and migration

  Hello

  1 can restore you a backup in windows xp, vista or windows 7 to windows 8 after clean installtion of it, or which is not possible due to differences in file format!

  2. What is the difference beween upgrade and migration in normal version of windows xp, vista, 7?

  3. when pass you any version of windows to superior version whitout a wil stay intact messaging and data backup?

  Thank you

  Johan

  Thanks for all the useful information, my last two questions are:

  1 can spend you xp to 8 or 8.1 pro or Enterprise version?

  See my answer

  2. can you use the original release of windows 7 or 8 in a network of windows server environment or it must be pro, ultimate and Enterprise version?

  Unfortunately not.
  Comapare editions: what each restriction versions are
  https://www.Microsoft.com/Windows/Business/Windows-version-comparison-chart.aspx

  Upgrade to Windows 8.1 of Windows Vista or Windows XP
  http://Windows.Microsoft.com/en-us/Windows-8/upgrade-from-Windows-Vista-XP-tutorial

  Note: If your PC is currently provided with pre-installed XP, the processor (CPU) is perhaps not able to support any version of Windows 8 or 8.1 as 8 or 8.1 requires the CPU supported the NX bit. That one version of the Intel Pentium 4 a NX supports, if you purchased a late model XP computer comes with an Intel Core 2 Duo processor, then chances are that it supports NX.

  For more information, see this post:
  http://answers.Microsoft.com/en-us/Windows/Forum/windows8_1-performance/Windows-81-requires-support-for-NX/f30ec261-4378-4a31-9d46-abb7620dd5ef

  Also download and run the upgrade wizard
  http://Windows.Microsoft.com/en-us/Windows-8/Upgrade-Assistant-download-online-FAQ

  J W Stuart: http://www.pagestart.com

• Question about backup with VDR 2.0.2

  Hello

  Excuse me for very low knowledge on this argument.

  I have a very simple question. If I made a backup of a motor home on Windows Server virtual machine and I create a folder on this machine between the time where VDR create the snapshot and the time of the end of the copy, when VDR remove the snapshot, the folder will remain on the server? All the changes I made on a virtual machine in the VDR copy will be lost or before to remove the snapshot, the changes will be merged with the original disc?

  Thank you very much.

  Hello

  the disks will be merged. If your changes are not lost.

  The backup however of course only will contain data up to the point when the snapshot was created.

  Concerning

  Tim

• Question about backup hot with Tablespace with no logging

  Hi, we have an application that using a temporary tables (tables of work). The application maintains a persistent connection to the DB.
  During the loading of data, the application will create work tables and then remove it when the process is complete. This recommended by Oracle on this application is to create a tablespace separated with no record.
  
  Here's the recommendation:
  "To minimize the contention of disk and logging, you can create a tablespace with NoLogging for the.
  work tables and indexes and store data files for storage on a physical disk separate.
  Because work tables are created and dropped during the processing of data, creating a tablespace
  without connect to work tables and the indexes of the working table can improve performance. »
  
  I asked experts to demand that all agree to implement the above suggestion. However, our DBA is reluctant to implement the suggestion above that there are concerns about the validity of the hot backup. Here is his comment:
  "The problem is that we cannot guarantee the recovery of this database unless recover us from a cold backup. This means that if there is something on this database which is important, we will have problems with data protection. "He said, not to apply any log will affect the ability to recover the database in the event of failure, even if tables work East of temporary tables only. His opinion is that, when the backup occur at the same time when the table is created, will result not valid backup. The only way to save the database must publish a cold backup, which means that we must stop the application to make the backup.
  
  Is it true. What is the best backup strategy for the above case?
  From the expert point of view of the application, cold backup is not necessary that the application does not maintain a persistent connection to the database.
  
  Thank you.

  If it's a temporary table only that is kept in storage space, in any case the data on their part would go, either at the end of the transaction or at the end of the session. Not sure that the data your dba trying to protect? I have yet to have my first cup of coffee then maybe missing me something obvious here, but I don't see a point in the protection of temporary tables and "cold backup to use for their recovery.

  HTH
  Aman...

• Questions about backups

  Whenever I add more photos to my PSE 7 library creates a new folder with the date of days which is OK.  I then created a complete upward on another drive, & all the images went into a new folder.  Later, when I asked to do an incremental backup I chose the same drive as the destination.  I see that the program has all the loose sitting additional images not in any folder, & that the thumbnails have only a description which is a number not the correct file name.  Is it normal for the description?  The latest pictures must be in a separate folder?

  You're right, Barb, I have not read the original question with sufficient attention.

  When you perform an incremental backup to an external hard drive, you must create and select a new folder where will the differential. For example, full backup goes into folder named "Backup" (I'm so creative...) and the first goes further in a new folder, for example, 'Backup1 '.

  Error of the original poster was that he probably just held the record of the external hard disk for its incremental backup. It must have created a new folder.

• A stupid question about backup...?

  I have my production Oracle running on HP - UX database.
  I don't have any other HPUX box to test my recovery to ensure that backups are recoverable.
  Maybe this is a stupid question. Is it possible to restore the back upward in HP - UX on Enterprise Linux?
  Oracle 10g R2
  Thank you
  Smith

  Is it possible to restore the back upward in HP - UX on Enterprise Linux?

  N °