Differential Restore
Feb 6, 2008
Windows Server 2003R2 w/ Sp2
MS SQL 2005 w/ Sp1
Currently run a weekly (full) backup and a daily (differential) backup.
When I format the server and rebuild I restored the DB using the weekly (full) backup and all worked as it should.
When I format the server and rebuild I attempted to restore the DB using the daily (differential) backup - I got the following error:
'SPCDBDIF.BAK ' is not part of a multiple family media set. BACKUP WITH FORMAT can be used to form a new media set. RESTORE HEADERONLY is terminating abnormally. (MS SQL Server, Error: 3259)
I am sure I am not using the differential file properly. What is the proper method to restore a DB and use a differential backup?
Any insight appreciated.
Thanks,
Kerry
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Nov 25, 2007
Scenario: -
1. Full db backup
2. Database failure (delete all data)
3. Differential db backup (after 3 hour of db failure)
When i restore full db followed by the differential db backup, it only remains the differential db data.I do not have transaction log backup so that i can restore to the point.
What can i do to restore db that can have full backup and differential backup data?
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Aug 28, 2007
Hi All,
I am trying to restore full backup in Sql Server 2005. I am using the following query to restore full backup.
"Restore database Testdb from Disk = 'C:Testdbfull.bak'
with move 'Testdb' to 'C:DBTestdb.mdf ',
move 'Testdb_log' to 'C:DBTestdb_log.ldf ', norecovery "
The above query is running successfully and database restored. But i am not able to access this database since in the database tab it is showing 'Testdb (Restoring)'
The next day I want to restore the differential database backup so i used the 'norecovery' statement.
please help why it is showing as '(Restoring)'
Thanks in advance,
Senthil
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Oct 8, 2006
I create a full backup followed by daily differential backup, when I restore database from the fifth or later differential item, I get the following Error Message:
System.Data.SqlClient.SqlError: This differential backup cannot be restored because the database has not been restored to the earlier state. (Microsoft.SqlServer.Smo)
It seems that there is an error when the fifth differential backup occurred, It's a disaster, how can I do, help!
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Apr 27, 2006
Hello All,
I'm new to this forum after read a few question error it given me little bit more understanding. But here's my problem I was create a database implement some tables than make a 'Full Backup' and input information on the table before make a 'Differential Backup'. I don't want restore a full database and just want to recovery specific table were deleted or removed. Please help........
Message show error:
Restore failed for Server 'SALES18'. (Microsoft.SqlServer.Smo)
Additional information:
System.Data.SqlClient.SqlError: The log or differential backup cannot be restored because no files are ready to rollforward.
Thank you very much.
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Jul 19, 2007
We are doing the following steps:-
1. Weekly Full Bckup
2.Daily Differential backup
3.hr Log back up
The following command works fine for all the Backups. it means backup file is fine.
RESTORE FILELISTONLY from DISK = 'D:BackupewDB_ full.BAK'
RESTORE HEADERONLY FROM DISK = 'D:BackupewDB_ ull.BAK'
RESTORE LABELONLY FROM DISK = 'D:BackupewTest_full.BAK'
RESTORE VERIFYONLY FROM DISK = 'D:BackupewTest_full.BAK'
Also The full back up restoration works fine:
RESTORE DATABASE Test3 FROM DISK = 'D:BackupewTest_full.BAK'
WITH MOVE 'Test2_Data' TO 'F:MSSQL2KMSSQLdataTest2Net_Data.MDF',
MOVE 'Test2_Log' TO 'F:MSSQL2KMSSQLdataTest2Net_Log.LDF',
NORECOVERY
GO
/* RESULT :
Processed 1032 pages for database 'Test3', file 'test2_Data' on file 1.
Processed 1 pages for database 'Test3', file 'test2_Log' on file 1.
RESTORE DATABASE successfully processed 1033 pages in 1.907 seconds (4.433 MB/sec).
*/
But While restoring the Differential file it throws error:
RESTORE DATABASE Test3 from DISK = 'D:Backupew est2_Diff1.bak'
WITH NORECOVERY
GO
Msg 3136, Level 16, State 0, Line 1
Cannot apply the backup on device 'D:Backupew est2_Diff1.bak' to database 'Test3'.
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
I checked the SQL Server Log no error msg corresponding Differential backup restore.
I don't know how to proceed further.Can any one guide me how to over come this..
Thanks !
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Sep 13, 2006
I am running the following script to attempt a restore of a differential backup:
RESTORE DATABASE AdventureWorks
FROM DISK='C:SQL2005_BackupsAutoBackupsAdventureWorks.bak'
WITH
NORECOVERY
GO
RESTORE DATABASE AdventureWorks
FROM DISK='C:SQL2005_BackupsAutoBackupsAdventureWorksDiff.bak'
WITH RECOVERY
GO
I thought this was the way to do it. It does restore the full backup, but on the attempt to restore the differential backup, I get the following error:
Msg 3136, Level 16, State 1, Line 1
This differential backup cannot be restored because the database has not been restored to the correct earlier state.
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
Does anyone know what this means? Do I have to use "with recovery" on the first restore? (The sample I took this from used "with norecovery")
The original backups were done with SQL Agent scheduled jobs. The script for the full backup is:
BACKUP DATABASE AdventureWorks
TO DISK='C:SQL2005_BackupsAutoBackupsAdventureWorks.bak'
The script for the differential backup is:
BACKUP DATABASE AdventureWorks
TO DISK='C:SQL2005_BackupsAutoBackupsAdventureWorksDiff.bak'
WITH DIFFERENTIAL, INIT
All I can say is, it's a good thing I am testing this out with non-critical data, because I obviously don't know what I am doing. (Sorry, I'm primarily a programmer, not a DBA) Can anyone help?
Thanks
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Feb 25, 2015
We have a 1TB Database. Our backup strategy looks like this.
Weekly Full backups - Saturday 10pm. (Takes anywhere between 5 - 9 hours)
twice Nightly Diffs (8:30p and 2:30am - Mid week this takes roughly 1.5 hours)
Hourly Log backups starting at 4:00am until 11pm.
I have an issue where I need to restore to 3:00 today. If my (2:30a)Diff is still running at that recovery point.
I am getting an error when trying to restore Full/2:30a Diff/4a Log with a stopat 3:00a.
Error telling me my log backup is incorrectly formed.
Can I, in fact, restore to this point at all? Do I need to go back to my previous Diff (8:30p) and restore the logs, if so, which ones?
My nighttime Diff ran from 8:30 - 10p.
I have logs at 9p, 10p, 11p, 4a
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Aug 17, 2007
I have done a full backup on 3pm, and a differential backup on everyday 5pm.
I try to restore it back in my testing server and i encounter the problem in restoring the File3 and i try to restore the File 2 and it is okie. Can i know wat is the problem usually cause this error? Thank you
File 1: Full Backup
File 2: Differential Backup
File 3: Differential Backup
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Jul 26, 2007
As I tested, I found with Transaction logs and Full Backup can support any changing of database.
So I doubt that Do I need to back up by diffrential style ?
Please suggest me.
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May 2, 2002
I know that the differential backup will only back up information that was changed since the last full database backup, but I have process that I need to implement and need to know if differentials will work.
1. Perform full database backup on Sunday.
2. Perform differential backups Monday thru Friday (twice a day).
3. Perform a database restore on the following Sunday from the backup taken on the previous Sunday.
4. Perform differential backups Monday thru Friday.
At this point I would repeat steps 3 and 4 for the following weeks.
My question is this. Since I didn't actually perform a backup in step 3, but instead performed a database restore, will the differential backup in step 4 backup all of the information changed since step 1??..or will it backup all of the information changed since the restore in step 3? I'm hoping it will only back up the information changed since step 3.
Thanks!
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Jun 25, 2002
I perform a full database backup at night with a differential backup at noon each day. I created 2 devices to do this. Northwind (for full backups) and northwind_diff (for diff backups).
When the differential is run, it appends each day's noon backup to the northwind_diff file so the file doesn't really reflect only changes - it just keeps growing and growing. I'm using the following syntax to perform the diff backup.
backup database northwind to northwind_diff with differential
Is there a way to initilize the backup device(file) prior to the differential backup being done?
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May 3, 2001
SQL 7.0 SP1 on NT 4.0 EE
Thru maintenance plan I backup my DBs every night and the T-Logs every hour.
Now I have to set the option "select into/bulk copy" on one DB.
I schedule the differential backup every 3 hour with option "overwrite existing media", wich is, in my case, one file on disk.
My sequence of T-Logs is valid even if a non logged operations occurs?
If I have to restore this DB can I use the last full backup + the differential backup + all the logs in between?
example:
22.00 full db backup
08.00 t-log
09.00 t-log
10.00 t-log
10.30 diff backup
11.00 t-log
12.00 t-log
13.30 diff backup
14.00 t-log
15.00 t-log
Or my log are unusuable because the non logged operation?
Thank you very much.
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Jul 23, 2001
Hello
I am using SQL 7 database maintenance plans to create full backups for all the databases on my server every night which expire after 7 days, and transaction log backups every hour on some of the databases which also expire after 7 days.
I want to add differential backups but the maintenance plan doesn't allow me to add those. How do I add them, and what naming conventions should I use? I want them to expire after 7 days, but want to backup every 4 hours.
Thanks
Steve.
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Aug 31, 2001
I trying to created a Differential backup and I get the following error. Can anyone help?
The volume on device 'd:MSSQL7BACKUPCPIDATABKUP.BAK' is not part of a multifamily (RAID) media set. Use WITH FORMAT to form a new RAID set. [SQLSTATE 42000] (Error 3259) Backup or restore operation terminating abnormally. [SQLSTATE 42000] (Error 3013). The step failed.
Thanks
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Sep 19, 2001
I'm trying to create a differential backup job that run hourly and that creates a different differential files. Ext. dbfilename1am, dbfilename2am, dbfilename3am ect... Can I do this with one job? Are do I have to create a differential backup job for each hour?
Thanks
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Aug 27, 2001
Hi, I would like to do the following;
Mon - Full Backup
Tue - Differential
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Aug 28, 2001
Hi, is anyone using differential backups? I would like to have separate differential backups but right now it keeps appending to one big differential backup. If they are separated the older backups can be deleted. How do you do this?
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Sep 12, 2001
I am setting up differential backups thru EM every 4 hours. I append to the existing file. Is there a way to tell it to delete the files older than 2 days thru EM. I looked at the job, there is now way to do this.
Thru Mainplans you can create differential backups, it doesn't show you the option..
Any clues will be appreciated.
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Sep 27, 2007
Hi Folks!
I did a few searches and found some interesting threads but was not able to understand much. :)
I recently jumped from support to a DBA position and am learning about SQL Server 2000.
My dilemma: We have a SQL 2000 server with about 500GB's worth of databases that has some jobs from the app locking up due to tape backups. I am performing Full nightly and 1/2hour transaction SQL backups. We run daily differential and weekly full tape backups. It is taking 14 hours to run tape backups daily, causing some of the application jobs to fail. So to test it, I stopped the tape job to run one night and none of the App jobs failed.
So, I am hoping that if I start running nightly differentials, weekly fulls, and 1/2 hour trans, it should work. However, I am not very familiar with Differential jobs as till today i have been using maintenance plans. :confused:
My ideal scenario is this: Differentials start on Sat morning and stop before the weekly backup runs on Friday and then delete the older file when starting a new one. Is this possible? how?
C= OS, D=Backup (Raid 0), G=Data (Raid 5), E=Logs(Raid5).
Any help would be appreciated, and obviously if I have missed some piece of information, please feel free to ask.
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May 18, 2008
Hi,
I've defined a maintenance plan in SQL2005, which creates a differential backup of a DB daily. Suppose I'm having differential backups from May, 10 to May, 14 but backup files of May 12 and May 13 are lost (deleted unexpectedly). Am I losing some data, if I restore from backup file of May 14?
Thanks & Regards,
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Sep 10, 2007
I'm lost. We have Sql Server 2005 on a remote box (A) and the local pc (B). Both servers have a single database on them. We've been copying the database A to B for some time and its becoming tiresome. I've heard of replication but couldnt figure out what the MS site was saying.
How do i go about making a differential copy of the A database onto B?
Thanks
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Jan 29, 2008
I need to make sure that my databases are backed up every hour so they can be recovered. What should I be doing? Transaction log backups every hour or differental backups every hour? I assume differental is better because it is cumlative, but would take up more space. Also, how long are they worth keeping around. I was thing for a day until the next full backup is run. Any thoughts?
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Jul 31, 2006
I am using SSIS to replicate data from an AS400 mainframe to a SQL destination. I am using a lookup column to see if the primary key is duplicated and if not, it will INSERT the row. This is all working fine. What I need to know is can I also use the Lookup transformation to look for differential data and then UPDATE the row? The primary key of the table will never change, however the data might and I need the package to recognize that this is a modified row on the mainframe and that the same row on the SQL destination server needs to be updated.
Thanks for any useful information.
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Jan 11, 2002
Hi all
Can anybody explain why the size of a differential backup in SQL7 is MUCH higher than the one in SQL2000?
Do this test yourself: do a full backup of the pubs database in SQL7 , it will be around 1.5mb, do a differential backup, and it will be 2mb or 4mb.
If you do the same tests in SQL2000 the differential backup is around 200K.
thanks
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Sep 17, 2001
I need to replication a server database out side a firewall. But can't change the server configuring for replication, so replication is out. So I wanted to know if I have a full backup of every db send to me every 24hrs. W/ differential every hr, will the restoring process work on the restoring server? Should I restored the full 1st? I'm not sure if the restoring of the Differential will work. Any help on the steps to take, to get this to work with backups & differential will be greatly appreciated.
Thanks Reggie
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Jan 11, 2001
PLEASE HELP...
WE ARE DOWNLOADING THE BACKUP FILE FROM OTHER BRANCH OFFICE AND THE FILE SIZE IS GROWING LIKE HELL SO I AM CHANGING THE BACKUP POLICY TO DOWNLOAD THE DIFFERENTIAL BACKUP FILES EVERYDAY. BUT EVEN THE FILE SIZE GROWS DAY BY DAY UNTILL WE TAKE THE FULL BACKUP THERE. SO I WANT TO TAKE A DIIFERNETIAL BACKUP AND THEN IMMIDIATELY A FULL BACKUP AT THE REMOTE SERVER END. SO MY NEXT DIFFERNTIAL BACKUP WILL HAVE THE DATA OF ONLY PREVIOUS DAY.
FOR THIS I AM SCHEDULING A JOB WHICH FIRST TAKES A DIFFERENTIAL BACKUP AND THEN IMMIDIATELY FULL BACKUP EVERYDAY AT 12.00AM.
BUT I HAVE A CONCERN.. WHILE TAKING THE DIFFERENTIAL BACKUP ANY TRANSACTIONS THAT ARE TO BE COMMITED WILL NOT COMMIT UNTIL THE DIFFERENTIAL BACKUP COMPLETES. BUT IMMIDIATELY I AM STARTING FULL BACKUP. IS THERE ANY CHANCE THAT A TRANSACTION GETTING COMMITTED IN BETWEEN THESE TWO STEPS. IF SO IS THERE ANY WAY .. NOT RELEASE THE DATABASE UNTILL THESE 2 BACKUPS ARE COMPLETED?? I AM RUNNING IT AS A JOB..
ANY SUGGESTION??
THANKS IN ADVANCE.. :-)
KUMAR
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Jun 14, 2000
Hello,
I'm trying to run a differential backup on our new 7.0 box. It fails with an error message number 3242 "The file on Device 'E:MyFile' is not a valid Microsoft Tape Format backup set."
Why "Tape Format" if I said "Backup database [mydb] to disk"?..
When I run exactly the same query without "Differential" I got a full db backup.
Am I doing something wrong?
Thank you,
Anastasia.
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Feb 14, 2002
I am trying to set up a process where a differential backup is taken daily and applied to another DB. For some reason I cannot get the diff backup to restore. The full DB backup restored fine.
Server: Msg 3136, Level 16, State 1, Line 4
Cannot apply the differential backup on device 'diff' to database 'test'.
Server: Msg 3013, Level 16, State 1, Line 4
Backup or restore operation terminating abnormally.
Any suggestions? Thanks!
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Oct 19, 2005
Our production backup schedule is, FULL backup once a month and a DIFFERENTIAL backup every day.
We are starting the FULL and DIFFERENTIAL backups using something similar to
FULL Backup
backup database @DB to disk = @BackupFile
DIFFERENTIAL backup
backup database @DB to disk = @BackupFile WITH DIFFERENTIAL
A full backup was done on 10/6 and the DB size was 48GB. Since then we have been doing DIFFERENTIAL backups. I recently looked at the DIFFERENTIAL backup directory and found something I think is interesting.
10/07/2005 04:00 AM 8,604,160 prodDB_Diff_200510070400.BAK
10/08/2005 04:00 AM 1,144,320 prodDB_Diff_200510080400.BAK
10/09/2005 04:00 AM 1,134,080 prodDB_Diff_200510090400.BAK
10/10/2005 04:00 AM 21,185,024 prodDB_Diff_200510100400.BAK
10/11/2005 04:00 AM 7,119,360 prodDB_Diff_200510110400.BAK
10/12/2005 04:00 AM 163,669,504 prodDB_Diff_200510120400.BAK
10/13/2005 04:00 AM 14,743,040 prodDB_Diff_200510130400.BAK
10/14/2005 04:00 AM 120,875,520 prodDB_Diff_200510140400.BAK
10/15/2005 04:00 AM 1,216,000 prodDB_Diff_200510150400.BAK
10/16/2005 04:00 AM 5,139,968 prodDB_Diff_200510160400.BAK
10/17/2005 04:00 AM 4,277,760 prodDB_Diff_200510170400.BAK
10/18/2005 04:00 AM 2,778,624 prodDB_Diff_200510180400.BAK
10/19/2005 04:01 AM 750,575,104 prodDB_Diff_200510190400.BAK
My understanding of DIFFERENTIAL backups from books online is
"Specifies the database or file backup should consist only of the portions of the database or file changed since the last full backup"
MY Question:
Assuming I am understanding this correctly, all DIFFERENTIAL backups are independent of one another. If a failure happens, all I have to do is restore the latest FULL backup and then
restore the latest DIFFERENTIAL backup.
So, I would think the sizes of the backup files should be in ASCENDING order. Why is the size of the backup file from 10/15/2005 (1,216,000 bytes) smaller than the backup file from 10/14/2005 (120,875,520 bytes).
Assuming a crash happens on 10/15 5AM, I would restore the full backup from 10/6 and then restore the DIFF. backup from 10/15 4AM (Which will apply approx.. 1,216,000 bytes of data). So where has the data in the backup file from 10/14/2005 gone (120,875,520 bytes)?
Thanks
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May 13, 2008
Hi,
I have a DB on a SQL server version SQL 2000. I have copied over one table onto a different server into a newly created DB. This DB is on SQL 2005.
The tables are identical in structure.
Now I need to copy over the differential from the Source table on the SQL 2000 server into the table on the destination server which is SQL 2005 on a daily basis.
What is the best way of doing this? It is just 1 table, I do not need the entire DB.
This table does hold a lot of records and on a daily basis there will be roughly 20,000 that need to be copied over. One of the main reasons for the differential only is that these 2 servers are physically located on different continents so the connection speed is not that great.
The table in the Source holds about 36 million records already (which I copied over to get the initial start).
Any ideas, help, suggestions are greatly appreciated.
Thanks,
Michiel
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May 16, 2013
Differential back up failed , verify the network error 51
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Feb 4, 2004
When a new scheduled job is created for a Differential backup, the file specified in the Destination folder is automatically created by SQL Server. After the first time the job runs, is there a way to configure SQL Server to give each Differential file a unique name, including the timestamp (i.e. similar to Full Backup jobs)? I noticed my only options are 'Append to File" and "Overwrite Existing File." If I choose to enable "Backup Set Expiration," the backup job will not run, because it wants to append/overwrite the filename specified.
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