In Sql 7.0 you cannot perform a log backup with NO_TRUNCATE when the primary db file is missing (ref. Q218739). I'm not updated with respect to Sql2000 and was wondering if this remains an issue in that version too? Anybody know?
(the solution being to have a separate DEFAULT file group and store the primary file on the same disk as the log).
Backup Log ..... with no_truncate -- How to get it to work.
Applicable to SQL Server 7.0 Date 8/14/00 andrews_gary_w@solarturbines.com
Introduction to the "Backup Log …….with no_truncate" feature of SQL Server 7.0.
On occasion a database may become corrupt or a database file may be inaccessible. Ideally, in these cases you want to be able to restore and recover the data back to the current point in time.
This requires that the Transaction Log be backed up prior to the restore process beginning.
Microsoft has provided the "Backup Log ……with no_truncate" feature for use in cases such as this. However, this feature works only under very specific conditions and thus is the topic of this document.
Background.
When a database is defined, it always has a primary file group. In some cases this may be the only file group defined for the database. The primary filegroup contains, at a minimum, the system tables for the database being defined. The systems tables hold metadata describing the database. Where no other filegroups have been defined, the primary file group will also contain the user defined tables/indexes.
Essential requirement
"Backup Log …… with no_truncate" must be able to access the "metadata" located in the primary file group, or it will not work. This also means that this part of the database must not be corrupt or that the file containing this part of the database must not be inaccessible.
Specific conditions required for "Backup Log ….. with no_truncate" to work.
a. The database needs to be defined so that the user tables/indexes are contained in one or more file groups other than the primary filegroup.
b. Logging of changes to the database must be in effect.
c. A full backup must exist
d. Changes are made (logged) to the user database.
e. No non-logged operations must have been performed since the last full backup.
f. The primary filegroup file(s) must be available.
g. The primary filegroup data must not be corrupted. Or at least the portion needed by the backup operation must not be corrupted. I am not 100% sure about this issue.
h. The data in the filegroups other than primary may be corrupted or these files may be completely missing.
Process to restore/recover.
a. When problem detected (data file(s) inaccessible or database is corrupted), if primary filegroup is accessible, then perform the Backup Log …. with no_truncate.
b. Then perform the restore process using the "with replace" option for the database. This will get back any missing file(s) and recover you right up to when the last log backup was taken.
c.Post restore/recover process, your database will not be corrupt or missing any data file(s)
Bottom line
To achieve maximum recoverability, the following is recommended.
a. Define databases so that user data is not put in the primary file group.
i.e. Define not only a primary filegroup, but also one or more "other" filegroups.
b. Place user data in the "other" filegroup(s), NOT in the primary filegroup.
c. Place the primary filegroup on a disk drive separate from the "other" filegroup(s).
d. Place the log on a disk drive by itself.
Under the above scenario, at least three different disk drives would be needed to accommodate a single database.
Some sources recommend you put the primary file group and the transaction log on the same disk drive (mirrored). This would of course reduce the maximum number of disks needed to two. This topic, from my perspective, is another issue to be separately addressed and thus is not covered any further in this document.
Remember, even if the database files are isolated as recommended above:
a. Should the primary filegroup file(s) be inaccessible, then the Backup Log …. with no_truncate option will not work.
b. Should the primary filegroup file(s) be corrupt, then depending on where the corruption is determines whether or not the Backup Log ….. with no_truncate option will work.
Hello,
I am planning to backup my log files to DLT and to disk on a regular basis. I was planning to issue a "backup log xxxxDB to device with NO_truncate" and then issue a "backup log xxxxxDB to DLT_device".
I have tried this but noticed that the size of file produced from the first command was greater than produced by the second command. It seems that the NO_truncate command is actually truncating the Log.
I am using SQL 7 and SP2 and truncate log on checkpoint option is switched off.
Can anyone shed light on this.
Thanks in advance.
Samir
Hello,
In the process of migrating a logshipped database (in non recovery mode) from SQL2000 SP4 to SQL2005 SP2, I got the following error (sorry for the french translation!):
---
Conversion de la base de données 'AdStatistiques' de la version 539 à la version actuelle 611.
Base de données 'AdStatistiques' exécutant l'étape de mise à jour de la version 539 à la version 551.
Msg 601, Niveau 12, État 3, Ligne 1
Impossible de poursuivre l'analyse avec NOLOCK car les données ont été déplacées.
Msg 3167, Niveau 16, État 1, Ligne 1
RESTORE n'a pas pu démarrer la base de données 'adstatistiques'.
Msg 3013, Niveau 16, État 1, Ligne 1
RESTORE DATABASE s'est terminé anormalement.
---
Of course, the restore operation performs well when the destination is SQL2000. I suspect the integrity checker of SQL2005 to be less permissive, hence I run a checkdb on the original DB, which raise several errors, which are quite difficult for me to analyse:
[Sorry, it's in french again]
----
Serveur : Msg 8929, Niveau 16, État 1, Ligne 1
Objet ID = 2 : Erreurs trouvées dans le texte ID = 15620702208 possédé par l'enregistrement de données identifié par RID = (1:1385:13) id = 1902629821 and indid = 1.
Serveur : Msg 8929, Niveau 16, État 1, Ligne 1
Objet ID = 2 : Erreurs trouvées dans le texte ID = 15620767744 possédé par l'enregistrement de données identifié par RID = (1:1385:14) id = 1902629821 and indid = 2.
Serveur : Msg 8929, Niveau 16, État 1, Ligne 1
Objet ID = 2 : Erreurs trouvées dans le texte ID = 15620833280 possédé par l'enregistrement de données identifié par RID = (1:1385:15) id = 1902629821 and indid = 3.
Serveur : Msg 8929, Niveau 16, État 1, Ligne 1
Objet ID = 2 : Erreurs trouvées dans le texte ID = 15620898816 possédé par l'enregistrement de données identifié par RID = (1:1385:16) id = 1902629821 and indid = 4.
Serveur : Msg 8929, Niveau 16, État 1, Ligne 1
Objet ID = 2 : Erreurs trouvées dans le texte ID = 26594574336 possédé par l'enregistrement de données identifié par RID = (1:7153632:27) id = 1031010754 and indid = 5.
Serveur : Msg 8961, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 2. Le nœud text, ntext ou image à la page (1:1974), slot 0, texte ID = 26594574336 ne correspond pas à sa référence dans la page (1:191177), slot 10.
Serveur : Msg 8974, Niveau 16, État 1, Ligne 1
Nœud texte référencé par plusieurs nœuds. L'objet ID = 2, page de nœud text, ntext ou image (1:1974), slot 0, texte ID = 26594574336 est pointé par la page (1:191177), slot 10 et par la page (1:38504), slot 0.
Serveur : Msg 8965, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 2. Le nœud text, ntext ou image à la page (1:1111184), slot 0, texte ID = 15620767744 est référencé par la page (1:191177), slot 11, mais n'a pas été vu à l'analyse.
Serveur : Msg 8965, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 2. Le nœud text, ntext ou image à la page (1:1111185), slot 0, texte ID = 15620833280 est référencé par la page (1:191177), slot 12, mais n'a pas été vu à l'analyse.
RĂ©sultats DBCC pour 'AdStatistiques'.
RĂ©sultats DBCC pour 'sysobjects'.
Il y a 388 lignes dans 9 pages pour l'objet 'sysobjects'.
RĂ©sultats DBCC pour 'sysindexes'.
Serveur : Msg 8965, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 2. Le nœud text, ntext ou image à la page (1:1111186), slot 1, texte ID = 15620898816 est référencé par la page (1:1385), slot 16, mais n'a pas été vu à l'analyse.
Il y a 437 lignes dans 26 pages pour l'objet 'sysindexes'.
CHECKDB a trouvé 0 erreurs d'allocation et 10 erreurs de cohérence dans la table 'sysindexes' (objet ID = 2).
[SNIP]
RĂ©sultats DBCC pour 'AdStatPageHeure_OLD'.
Serveur : Msg 8977, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 1902629821, index ID = 1. Le nœud parent pour la page (1:1043307) n'a pas été rencontré.
Serveur : Msg 8977, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 1902629821, index ID = 1. Le nœud parent pour la page (1:1043308) n'a pas été rencontré.
Serveur : Msg 8977, Niveau 16, État 1, Ligne 1
Erreur de table : Objet ID = 1902629821, index ID = 1. Le nœud parent pour la page (1:1043309) n'a pas été rencontré.
Serveur : Msg 8977, Niveau 16, État 1, Ligne 1
[SNIP, several errors pretty similar here]
-Trop d'erreurs trouvées (201) pour l'objet ID = 1902629821. Pour voir tous les messages d'erreurs, relancez l'instruction avec 'WITH ALL_ERRORMSGS'.
Il y a 21062117 lignes dans 72062 pages pour l'objet 'AdStatPageHeure_OLD'.
CHECKDB a trouvé 0 erreurs d'allocation et 72063 erreurs de cohérence dans la table 'AdStatPageHeure_OLD' (objet ID = 1902629821).
---
Of course, I'd like to delete the AdStatPageHeure_OLD table but I get a cryptic error message when doing that, and I can't remove the indexes that, according to some other posts I browsed, could explain the behavior:
---
La page (1:1111186), slot 1 pour le noeud text, ntext ou image n'existe pas.
Page (1:1111186), slot 1 for text, ntext, or image node does not exist. (Microsoft SQL Server, Erreur : 7105)
Pour obtenir de l'aide, cliquez sur : http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=7105&LinkId=20476
---
Is there any easy option you can see to operate the transfer, since the backups I have from the DB already contain the data corruption?
Thanks a lot for any hint you could provide,
--
Julien
Hi all
i have taken backup of a database from SQL Server2005
can i Restore it on SQL Server2000 server?
Please help me
Thanks
hi,
i have six files ( 3 MDF and 3 LDF) from a backup of a MS SQL 2000 server.
I installed MS SQL 2005 and wanted to Restore these Dataset. but they cant be accessed. doesnt SQL 2005 support these files ?
How can i use these files to access them with SQL 2005 ?
Thx,
I am restoring a backup from SQL2000 Database to 2005 and I get this error :
An exception occured while executing a Transact-SQL statement or batch
(Microsoft.SqlServer.ConnectionInfo)
Additional Information: Too many backup devices specified fro backup or restore; only 64 are allowed.
RESTORE HEADEEONLY is terminationg abnormally. (Microsoft SQL Server, Error 3205)
How do fix this? Please assist.
Thanx
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System.Data.SqlClient.SqlError: The backup of full-text catalog 'DataBaseA' is not permitted because it is not online. Check errorlog file for the reason that full-text catalog became offline and bring it online. Or BACKUP can be performed by using the FILEGROUP or FILE clauses to restrict the selection to include only online data. (Microsoft.SqlServer.Smo)
Please note we left the DataBaseA in the old SQL2000 server.
Please help on how we can delete the Full-text catalog from DatabaseB so we can do a backup
Many Thanks
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Hi there
I'm getting this message on my third automated backup of the transaction logs of the day. Both databases are in full recovery mode, both successfully backed up at 01.00. The transaction logs backed up perfectly happily at 01:30 and 05:30, but failed at 09:30.
The only difference between 05:30 and 09:30's backups is that the log files were shrunk at 08:15 (the databases in question are the ones that sit under ILM2007, and keeping the log files small keeps the system running better).
Is it possible that shrinking the log files causes the database to think that there hasn't been a full database backup?
Thanks
Jane
On the SQL Server the Event Viewer shows the same messages and errors every evening between 22:05:00 and 22:08:00. The following information messages are shown for every database:
"I/O is frozen on database <database name>. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup."
"I/O was resumed on database <database name>. No user action is required."
"Database backed up. Database: <database name>, creation date(time): 2003/04/08(09:13:36), pages dumped: 306, first LSN: 44:148:37, last LSN: 44:165:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{A79410F7-4AC5-47CE-9E9B-F91660F1072B}4'}). This is an informational message only. No user action is required."
After the 3 messages the following error message is shown for every database:
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I have added a Maintenance Plan but these jobs run after 02:00:00 at night.
Where can I find the command or setup which will backup all databases and log files at 22:00:00 in the evening?
SQL Server 2008 r2 - 6 GB memory...I attempted a backup on a 500GB database but it was taking way too long. I checked the resources on the box and saw the CPU at 100%. I checked the SQL Server activity log and saw a hung query (user was not even logged on) that had multiple threads so I killed it and now the CPU utilization is back to normal.
Trouble is, now all of the threads in the activity monitor for the backup show 'suspended' and the backup appears to be not doing anything.
Hi,
I use the Transact-SQL BACKUP statement in Visual Basic to backup my local MSSQL Database. It give me this error
Error 3041
BACKUP failed to complete the command BACKUP DATABASE [BCFPC] to BCFPCBKP
I already created a backup device called BCFPCBKP and it is backup to the disk.
I tried to run the same BACKUP statement in SQL Query Analyzer and it worked fine. I tried to run my VB application in another PC. It worked fine when i use this command remotely. Can anyone tell me what's the problem?
Thanks in advance
regards,
M.Y. Yap
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We take a full backup in the early morning and hourly transaction log back during the working hours for one database in the production server. The application team made certain changes to the design of the said database in their development server. The backup from the development server was restored to the production server during working hours. After the restoration should we take a full backup before next transactional logbackup? Would the transactional log backup with out a full backup after the restoration of a database be valid?
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[Code] .....
Using SQL Server 2005 Server Management Studio, I attempted to back up a database, and received this error:
Backup failed: System.Data.SqlClient.SqlError: Backup and file manipulation operations (such as ALTER DATABASE ADD FILE) on a database must be serialized. Reissue the satement after the current backup or file manipulation is completed (Microsoft.SqlServer.Smo)
Program location:
at Microsoft.SqlServer.Management.Smo.Backup.SqlBackup(Server srv)
at Microsoft.SqlServer.Management.SqlManagerUI.BackupPropOptions.OnRunNow(Object sender)
Backup Options were set to:
Back up to the existing media set
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Thanks.
Shalini.
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Thanks,
Marc
Hi
I am using the Simple recovery model and I'm taking a weekly full backup each Monday morning with differentials taken every 4 hours during the day.
On Wednesday afternoon, a programmer ran a process that corrupted the db and I had to restore to the most recent differential. It was 5pm in the afternoon and a differential backup had just occured at 4pm. No problem, I figured.
I restored the full backup from Monday morning and tried to restore the most recent differential backup. The differential restore failed. Since I had used T-SQL for the initial attempt, I tried using Enterprise Manager to try again.
When viewing the backup history, I see my initial full backup taken on Monday plus all the differentials. BUT, on closer inspection, I noticed another full backup in the backup history that was taken early Tuesday morning. I can't figure out where this Tuesday morning full backup came from. It wasn't taken by me (or scheduled by me) and I'm the only one with access to the server. My full backups are usually named something like HCMPRP_20070718_FULL.bak. This erroneous full backup was named something like HCMPRP_03a_361adk2k_dd53.bak. It seemed like it was a system generated name. Not something I would choose. To top it off, I could not find this backup file anywhere on the server and when I tried to restore using this full backup, it failed.
Does anyone have any clues as to where this full backup might come from? Does SQL Server trigger a full backup on its own if some threshold is reached?
I ended up having to restore using the differential taken just before this erroneous full backup and lost a day of transactions.
Any insight is greatly appreciated.
I have only one tape drive.
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What should I do to make the tape drive shared by different softwares?
Regards,
Manuel
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I have MS SQL 2005 server with 300+ databases on it. The application is set up that way that it creates a new database as needed (dynamically). Do not ask me why - I hate this design... So, it can create 3-4 databases a day (random time).
I've scheduled full backup of all databases to run once at night, and it runs just fine. Besides that, I have scheduled tran logs backup of all databases to run every hour. This backup fails from time to time with the following error:
Executing the query "BACKUP LOG [survey_p0886464_test] TO DISK = N'D:\backups\log backups\survey_p0886464_test_backup_200708072300.trn' WITH NOFORMAT, NOINIT, NAME = N'survey_p0886464_test_backup_20070807230002', SKIP, REWIND, NOUNLOAD, STATS = 10
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I am new to MS SQL Server, I am mostly working with Sybase IQ. Do you know if I can "trigger" full backup every time when new database created to avoid tran lof failure?
Or is it possible to schedule full backup to run if tran log backup fails?
Any advice will be much appreciated.
I should restore a SQL Server 2005 Database from backup. The backup contains three files, named user.bak0, user.bak1 and user.bak2.
How is the syntax of the restore filelistonly and the restore database ... ?
I usualy write
restore filelistonly from disk = 'path and filenam.bak'
restore database. zy
from disk = 'path and filename.bak'
with replace,
move.....
move....
This works but I cannot use it with a splitted backup file. The files are much too big to put together to one file.
Thanks in advance for any help.