Should Full Backup And Transaction Backup Be From One Plan?
Mar 11, 2008
Hello, everyone:
I just heard that for restore purpose, ths full backup and transaction log backup should be from one maintenance plan. Otherwise transaction log backup files cannot be restored after restoring full backup files.
Is it true? Can anyone offer official documents?
In my system, full and transaction backups are from one maintenance plan. Restores are doing fine. I am not sure that ideal is true or not.
Thanks
ZYT
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Jul 15, 2015
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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Apr 30, 2008
Please correct me if I am wrong with this:
I am using SQL Server 2000, when I do a backup I use the database maintenance plan at enterprise manager. I select my database and then I schedule the complete backup and transaction log backup to "everyday at 22:00:00"
My question is, do I really need to do the transaction log backup? If I am not wrong with the complete backup I can already recover all my data, the transaction log backup is useless if done at the same time that I do the complete backup, right?
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Mar 10, 2008
I have this database "DB1" which is in FULL recovery mode.
I run full daily backup -Monday to Saturday
DB1_Mon.bak
DB1_Tue.bak
DB1_Wed.bak
DB1_Thur.bak
DB1_Fri.bak
DB1_Sat.bak
Come Sunday - for the first time I have run transaction log backup.
DB1_Sun.trn
And now, I need to restore DB1 - but the only full backup that I have is the Monday - "DB1_Mon.bak"
Is my database complete if I restore only "DB1_Mon.bak" plus the "DB1_Sun.trn"?
Jeboy
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Apr 30, 2008
Please correct me if I am wrong with this:
I am using SQL Server 2000, when I do a backup I use the database maintenance plan at enterprise manager. I select my database and then I schedule the complete backup and transaction log backup to "everyday at 22:00:00"
My question is, do I really need to do the transaction log backup? If I am not wrong with the complete backup I can already recover all my data, the transaction log backup is useless if done at the same time that I do the complete backup, right?
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Oct 14, 2007
Hi, I am reading the book of MCTS Self-Pace Training Kit. If I set up the option of Recovery Model in the properties of a database, Does SQL Sever will generate/update the log file per transaction? What is the relationship between Transaction Log files and Recovery? When we want to recover a database, we can use the database's backup. Why we need to keep Transaction Log?
Sincerely,
Julian
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Feb 1, 2001
hi, I would like to know the correct reaction for a crash in both senarios.
First senario,
I made a full back up at 6 am , then scheduled sql server to make transaction log back up every 2 hours (8,10,12,2 pm,4,6,8) . If I have a crash at 12:30. How would I resotre the data in the first senario....Can I restore the full back up done at 6 am then restore the last transaction log backup ( which is 12 Noon ) . I am not sure If I need to resotre the whole tran from 6 am till the time it was crashed.
Second senario,
I made a full back up at 6 am, then scheduled sql server to make Incremental backup every 2 hours (8,10,12,2 pm,4,6,8) . If I have a crash at 3:00 pm. How would I resotre the data in the second senario. ....Do I restore the full backup at 6 am then restore each incremental backup backwords ( 2,12,10,8)
AS you can see, I am not sure how to deal with this issue, I do appreciate your feedback.
Best regards
Ahmed
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Jul 12, 2007
In MS SQL 2005 when you do a Full Backup does it also backup andtruncate the transaction logs or do I need to back the transactionlogs up separately?Thanks.Brian
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Feb 19, 2015
Using Ola Hallengren's scripts I do a full backup of a database on a Sunday. Then differential backups every 6 hours and log backups every hour. I would like to keep a full week of backups based off the full backup done on Sunday. Is there a way for me to clear out the diff and log folders after the successful full backup on Sunday nights?
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Aug 3, 2015
Need to restore database,here's the scenario:
Data got deleted on Friday evening, need to have database restored to FRiday afternoon and also some data has been entered on Monday, which needs to be there.
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Nov 16, 2015
I have a database that is just over 1.5GB and the Full backup that is 13GB not sure how this is since we have compression on for full backups and my other full backups are much smaller than there respective databases...Now my full backup is taken every Sunday night and the differentials are taken every 6 hours after the full backup. Now I have been thrown into this DBA role with little to no experience just what I have picked up and read. So my understanding of backups are limited but what I think I understand is that we take a full backup and the differential only captures what changes in the database so my question is why is my database 1.5GB but my differential is 15.4GB? I have others database that are on the same instance and don't seem to have this problem. I also just noticed that we do not rebuild the index before a full backup like we do on other instances...
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Nov 29, 2007
If my backup starts at 8PM and take 1 hour to complete, will the changes made to the database during that hour be captured in the full backup?
Stated another way, will my backup be a snapshot of:
a) 8PM when the backup started
b) 8PM with some of the changes made between the hour
c) 9PM when the backup finished?
Anybody know the exact way SQL Server handles that logic?
Thanks,
Marc
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Jul 19, 2007
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.
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Aug 8, 2007
Hello,
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
" failed with the following error: "BACKUP LOG cannot be performed because there is no current database backup.
BACKUP LOG is terminating abnormally.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
So, I think what happens is since my full backup of all databases are scheduled to run only once at night, and tran logs every hour, when new database is created during the day, there is no full backup for it, that is why tran logs backup fails. Becuase after the failure, if I run full backup again, then tran log runs just fine afterwards.
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.
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Oct 17, 2006
I have a full backup and several diff backup,now i want to restore
firstly,I restore full backup
RESTORE DATABASE ***
FROM DISK = 'D:databackup200610140000.bak'
WITH NORECOVERY
GO
it's working,then i don;'t know how to continue
Thanks in advance
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Mar 15, 2007
If I create an adhoc db backup that takes, say 30 miuntes to complete, should I suspend the tran log backups that run every 10 minutes, until the full backup is complete?
Drew
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Jun 6, 2007
Hi,
Using SQL Server 2005, we have a 2.8Gb database under the Simple recovery model. The database contains ~50M rows and each night ~60k rows are loaded(appended) to the database by a SSIS task.
We configured a Maintenance Plan which is executed once a week to perform a full backup of the database. The resulting backup file is ~2.8Gb, as expected.
We also configured another Maintenance Plan which is executed every day, a few hours after the SSIS task is executed, to perform a differential backup. To our surprise, the resulting backup file is about the same size as the full backup, ~2.8Gb when it should only be a few MB (only 60k rows are added to the database)
When we launch the "Restore Database" wizzard we clearly see the different backup set, Full and Differential but they all have about the same size (same for the physical backup file on disk).
Is there anything we are missing, why are the differential backup that big?
Thanks for any advice.
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Jun 13, 2007
what is the differences between a differenctial backup and transaction log backup?
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Oct 14, 2007
I neglected to backup the transaction log as part of the process of backing up the database. Now i only have the backup file for the database and no transaction log backup. When i try to do a restore on the database, i get the error on a "tail log missing" message (which i'm assuming is that it's looking for the t-log backup?).
Is it possible to restore or even restore to a new database? I'm only looking to retreive data from 2 tables within the backup file.
Thanks!
SQL Server 2005 on Windows 2003 Server x64.
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Oct 23, 2015
In SQL Server, whether the full backup of a database includes the backup of the log?
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Jun 14, 2007
Hi:
I have 30 databases on sql server 2005 that I need to do a full backup every morning at 7:00 and tran log backup every 30 minutes until 7:00 PM. If I create a maintenance plan for a backup using the wizard I have the option of starting a full backup at 7 am and then an option of doing tran log backups every hour using a different schedule. I plan on selecting the option to create a different folder for every database. I just need to confirm that in this way the way to restore the data would be
1. to restore a full backup
2. apply all the tran logs depending on the time they want to recover back to.
I just think this is the easiest approach to have 30 databases on the same backup scheme instead of creating a separate backup device for each database and doing a full backup on that device and appending all tran logs to that device which means just 1 bak file versus the above strategy with a number of tran log files. Please advise.
Thanks
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Jan 31, 2008
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
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Aug 13, 2006
I am having a hard time setting up a backup plan for my sql server databases. Right now I create a copy of each database on another machine on the network once a day. Once a week I upload a MSAccess version to a remote site. Obviously there are huge amounts of potential data loss if a crash of some sort would occur locally.
My new plan is looking like this:
1) Run a complete database backup once a day
2) Run Transaction Log backups every hour
My questions are as follows:
1) What role does a "Backup Device" play in this process (I currently do everything through the Enterprise Manager interface)?
2) I am having a hard time scheduling mydatabase_complete.bak and mydatabase_trans.TRN at all. I get several errors.
3) I would like to run these backups on another network machine but am not seeing how to access "My Network Places" from the "Backup Database" utility in Enterprise Manager.
Any help in the form of answers or pointing me towards a useful resource for this process would be much appreciated!
Thanks in advance~
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Feb 7, 2004
Hi all,
I am new to SQL and was given a SQL server to administer. There are lots of databases on the server and no one seems to know which one is used and which one is not. I try to do some cleanning.
1. Can I find out if there is any activity on a database so I can delete them off and how?
2. There are backup jobs that run every night which do a full backup. I am thinking of changing it to do full backup once a week and differential every night. These databases are updated daily. Some have lots of activities, some have less. Does that sound reasonable? and if I do differential backup, should I create separate back up file or should I add on to the full backup file?
Any comments or suggestions are greatly appreciated.
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Jan 6, 2008
I would like to implement the following backup strategy in SQL Server 2000:
full backup is done once a week
diff backup daily
tran backup every hour
How should I approach this. Should I use a backup device linked to a hard disk file? Should I create a backup device for each type of backup (full, diff, tran) and schedule it. If I use a backup device how do I distinguish each backup for old backups.
thanks
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Jan 24, 2002
Are there any known issues using Maintenance Plans to backup DBs in SQL Server 7.0
Thanks
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Apr 17, 2000
I made a backup maintenace plan in sql7.0, but it doesn´t work. The message included on the event logger is:
SQLServerAgent
SQL Server Scheduled Job
'DB Backup Job for DB Maintenance Plan 'Teste''
(0x219C5CB03C11D4119D8F0020188D7311) -
Status: Failed - Invoked on: 4/17/00 3:25:00 PM - Message:
The job failed. The Job was invoked by Schedule 12 (Schedule 1).
The last step to run was step 1 (Step 1).
And before this message there is another one that can be making something goes wrong:
SQLServerProfiler
Executable: C:WINNTsystem32mmc.exe
Description: Unable_To_Set_RegKey_Val
Source: ........srceventlog.c
Line: 315
Someone can help me telling me the reason that is generating this kind of error and doesn´t work. I have do the same think in others two server and there it works ok.
Thanks in regards
Sandra Lino
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Feb 23, 2000
I am doing full backups on 25 databases nightly using the SQL maintenance plan. Recently I have started getting the backup process hung on one database, so the whole plan does not finish. The job shows as executing, but nothing is being done, and nothing has been written to disk for this database. The SQL logs show a DBCC TRACEON 208, but the process it refers to is using another database. The NT logs do not show anything going on either. Additionally the backup process will not die when it is killed. They only way to make it go away is to stop and start the SQL Server. The system is a quad Pentium 450, 2Gig of ram, and plenty of disk space. It is NT SP5, SQL7 SP1. The DB is about 8.2 Gig. There are no other jobs scheduled to run at the time the backups run. Does anyone have any ideas what would be causeing the process to hang? Also what is a trace flag 208, it is not listed in BOL. Thanks for your help.
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Feb 7, 2003
I have a maintenance plan that I use to backup some of my databases and transaction logs. I have "Check Database Integrity" checked. If the database is being used by anyone when the backups are being performed, the check issues an error because the DB cannot be put into single user mode and then skips the backup. In the Plan, I have unchecked the box for "Perform these checks before backing up the database or transaction file" and apply the change. When I go back into the plan, the option is checked again. How can I get around this problem?
Thanks,
Ken
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Mar 21, 2002
I have a maintenance plan where I backup the system databases and my application databases every night. Once a week I do a Check Database Integrity. For the Master and MSDB databases, it errors out telling me that the database must be in single user mode. I thought that the maintenance plan would switch the DB to single user mode when it needed to perform its checks. Any suggestions on how to get this to work successfully?
Thanks,
Ken Nicholson
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Sep 6, 2001
I'm running sql server 2000. All the backups created through the Maintenance Plan failed (no specific error code), whereas backups created by itself (through database name => All Tasks => Backup database...) run fine. Does anybody have a clue why the Maintenance backup failed or how to trouble shout the problem?
The reason I want to make the backups from maintenance plan to work is that each backup will have a unique name and I can schedule to remove the old backup files from the system.
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Jun 21, 2006
Hi,
I have made a maintenance plan to backup a database.
The file name is like this: name_db_200606211209.BAK
isn 't it possible to get the filename to be always the same
(without 200606211209)
I have unchecked the checkbox to remove files older than x-days
but it still appends 2006... to it
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Oct 17, 2006
Our database is more than 20,000,000 bytes and increase largely everyday
who can give me some advise about stable backup?
My database is sqlserver2005 and now i use files to backup including full backup and diff backup,whether is better to use device?
any ideas? thanks in advance
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