Backup And Shrink Trans Logs??
May 30, 2008
Hi,
I am in the process of migrating databases from a SQL Server 2000 server to a 2005 server.
I have taken full backups and restored without recovery on the 2005 server. I now need to take transaction log backups and restore with recovery tonight to complete the operation. My question is this:
Some of the transaction logs have grown very large. Is it safe practice to perform a backup tran with truncate only and then run dbcc shrinkfile to reduce the size before I back up? This would make the process much quicker.
Thanks.
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Mar 9, 2005
Hi,
Can someone please express their experience and recommendations for the following questions?
1. Do you need to unable SQL-Backup if you already using a 3rd party software utility to backup the SQL data drives?
2. If you do not want to shutdown SQL services for backup can you use Volume Shadow Copy as a solution to open files?
3. What size would you recommended to use for the Transaction Logs DB if my Data DB size is 2GB
I am running Windows 2003 with SQL 2000/SP3. Obviously, I am not an expert in SQL so I appreciate your help.
Thanks
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May 3, 2007
I have a 2000 DB which is log-shipping to another server. The log has grown huge and needs to be made smaller. Can I use DBCC SHRINKFILE without damaging the log-shipping? I know that truncating the log destroys log-shipping, but shrinking should logically not cause any harm. Do you know? Is there a better way to reduce the size of the log file without damaging log-shipping??
Thanks!
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May 2, 2006
I am sure this has been asked multiple times before, but I have a DB (SQL 2K) that is involved in transactional replication. The log periodically grows to a seriously big size. How can I shrink it without damaging replication? I have opened SSIS (SQL 2005 is the subscriber) and tried to shrink the file, but to no avail. It reckons I could shrink it to 0MB, but I feel this would throw out replication.
Any help appreciated.
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Sep 29, 2006
hi,
how can I trunc an shring a db transaction log?
thanks for reply....
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Aug 10, 2001
We're running Lawson software on our SQL 2000 box. We're using Veritas
Backup Exec to back up the databases to tape. I'm also using a Maint
Plan for an extra backup (kinda redundant, but I need the practice at
all this). I just added transaction logs to the maint plan (so I
thought) but I only see a log for 1 of the 3 databases.
Also, my trans log file is 11 gig. I thought backing up the trans logs
would get the trans to delete afterwards (databases are recovery
model=full). Can anyone point a newbie in the right direction.
Fortunately it's not in production yet, and we haven't had any disasters
(yet).
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Jul 31, 2002
I have my SQL7 server running on NT4 server. Currently the transaction log backups are on the same server but I want to back these up to a Win2000
server in another building. When creating a Backup Device in Enterprise Manager on the NT server it cannot see the drive but not the folder I have created on the Win2000 server, even though I have shared this folder out and set the permissions. Any help would be appreciated.. Thanks
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Nov 7, 2002
There are so many to choose from, which ones are the most important to monitor?
Also if you have your data files and trans logs set to grow automaticlly and would like to change this to a fixed number is there a way to determine how large you should set them at? Thanks in advance.
:confused:
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Feb 28, 2008
Regarding backups.
The first available time to do a full backup is at 11:00pm which also applies to diff. backups.
How often does the trans. logs need a back up?
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Feb 8, 2008
Just want to inquire on how to shrink my sql logs.
My disk space is running and I suspect that sql logs is the cause
of the problem..
Kindly help
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Jun 5, 2002
I have seen quite a few people post this type of problem, but I am finding few solutions. Your advice and/or experiences are greatly appreciated.
Here's my scenario:
Environment: Windows NT 4.0 SP 6, SQL 7.0 (set up for Transactional Replication)
Problem: We have several remote dB machines configured for full recovery. On these machines are several dB's that are capturing aprox. 280 data points per second per unit. (Each dB represents one unit, and we have 21 units) No problem here. The problem is the transaction logs, that obviously grow profusely, will not SHRINK after, backups, dbcc commands and TSQL has been issued in failed attempts to shrink the logs. (in other words we've tried everything)
My questions are:
1. Because we are replicating, is it absolutely necessary to configure dB's for FULL recovery? How do I check in 7.0 if the dB is certainly in FULL vs. SIMPLE recovery mode?
2. I work with SQL 2000 and shrinking files is no problem. How can we shrink these log files in SQL 7.0?
It is rather urgent I find a solution as we are running out of hard drive space on our remote machines. Please help :-(
Christine
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Nov 4, 2005
I have a trans log backup that runs every 15 minutes on san, works fine until I do a backup after a large load. I get the below error message. Anyone had this before?
Executed as user: DPSCSDOMsqlexec. The file on device 'n:sqllogsmdentallgdmp' is not a valid Microsoft Tape Format backup set. [SQLSTATE 42000] (Error 3242) BACKUP LOG is terminating abnormally. [SQLSTATE 42000] (Error 3013). The step fail
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Jan 20, 2005
Is there anyway in SQL to backup the Database and Transaction log without truncte the Transaction log? :o. I would like to keep all or as much of the Transaction log info as possable. I know the Trans log will get large but HD space is not a problem. I use the transaction log to report field changes usung Log Explorer.
Thanks
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Aug 28, 2001
Hi Every one,
According to our stratergy we are taking trans log backup of every user database everuy two hours.things seem to work great and with success at the day time and at night once at 12.03 and 2.03 they fail and when i checked the error log i found that there is only one database for which its failing and it gives the following error.
Database ors: Transaction Log Backup...
Destination: [D:BackupTranLogorsors_tlog_200108280203.TRN]
[Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 4213: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot allow BACKUP LOG because file 'ors_Data' has been subjected to nonlogged updates and cannot be rolled forward. Perform a full database, or differential database, backup.
[Microsoft][ODBC SQL Server Driver][SQL Server]Backup or restore operation terminating abnormally.
We had a option called select into/bulccopy set which i disabled once this failure has occured but still the problem persists....there are no other options set...i am out of resources i donno what to do..could you suggest me something and how to solve this problem its happening in prod.
Thanks for your help.
Kavitha
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Aug 29, 2001
Hi Every one,
According to our stratergy we are taking trans log backup of every user database everuy two hours.things seem to work great and with success at the day time and at night once at 12.03 and 2.03 they fail and when i checked the error log i found that there is only one database for which its failing and it gives the following error.
Database ors: Transaction Log Backup...
Destination: [D:BackupTranLogorsors_tlog_200108280203.TRN]
[Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 4213: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot allow BACKUP LOG because file 'ors_Data' has been subjected to nonlogged updates and cannot be rolled forward. Perform a full database, or differential database, backup.
[Microsoft][ODBC SQL Server Driver][SQL Server]Backup or restore operation terminating abnormally.
We had a option called select into/bulccopy set which i disabled once this failure has occured but still the problem persists....there are no other options set...i am out of resources i donno what to do..could you suggest me something and how to solve this problem its happening in prod.
As Said by someone i took a full backup...tooooo it does not solve the issue.
Thanks for your help.
Kavitha
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Dec 6, 1999
This is a silly question but I am not sure of the answer.
Each day I do a complete DB backup and houly I backup the Translog file with the append mode.
Question Is the Transaction log truncated each time I do a Transaction Log Backup?
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Aug 15, 2007
I am a bit confused. I was told that backing up the TLog cleared out all the commited transactions which shrinks the log. Is this true, becuase I started with a 72 gig transaction log and the created a maint plan to back it up as a .trn. After this was successful the 72gig .ldf was still the same size. What am I doing wrong to get this log size down?
Thanks!
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Aug 19, 2007
I'm running full recovery mode and doing log shipping so changing to simple mode is not an option.
I'm running BACKUP LOG right before and when I check it says my log is 99% free (on a 180GB log).
When I do DBCC LOGINFO('dbname') right before and after I see a dozen entries and they are all over the file and not just at the starting offset areas. The BACKUP LOG doesn't clean out the file completely.
Is there any explanation for this? Even though I'm doing this at off hours, is it possible that someone on the site in that split second is putting new entries in the log? Why are they spread out though? If they just put entries at the beginning I could shrink the file to a normal size still.
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Jun 14, 2006
Hi,
Is it possible to shrink a DB thru .NET.
Presently I have to go into the SQL server 2005 studio to shrink the DB.
To shrik the DB I right click on the DB and select all tasks -> Shrink -> DB
How would I do this thru SQL codse?
I would like to do it thru my VB.NET code as you would compact an ACCESS DB.
The reason I want to set it thru my code is :
The clients that use my program have no clue of
SQL or for that matter computer itself.
I just want them to click on a button on my application which should
do the shrinking.
Similarly for backup of the DB.
Tnx
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Oct 2, 2015
I need a script to Backup & Shrink tempdb.
namesize
tempdev1024
templog64
tempdev21024
tempdev31024
tempdev41024
tempdev51024
tempdev61024
tempdev71024
tempdev81024
I can't believe how many tempdb's there are?
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May 1, 2000
I've truncated and shrunk the database and now, it says that the size of the db is 14 mb and 8mb is free. However, on the file system, the mdb and
ldb files together adds up to 14 mb. How can I free up the 8 mb for other usage?
Thanks,
Anthony
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Feb 21, 2001
Help on Backup of Logs
I get the following errors when I am trying to backup log every 15 minutes. It fails only during the peak hours.Does anyone have any ideas why it happens.
Cannot allow BACKUP LOG because file 'XX_data' has been subjected to nonlogged updates and cannot be rolled forward. Perform a full database, or differential database, backup. [SQLSTATE 42000] (Error 4213) Backup or restore operation terminating abnormally. [SQLSTATE 4200
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Oct 12, 2006
I am trying to backup my Transaction Logs using T-SQL with the aid of a job. The problem I am running into is that I need it to backup every three hours and retain one days worth of transactional logs. This is the query I got so far.
BACKUP LOG CA001 TO DISK = 'S:AZTARGPCA001ca001_TRN_bkuplog.trn' with retaindays = 1
Any suggestions welcomed.
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Dec 20, 2007
I've got a Sql server 2000 box that currently backs up to tape in full every night. I also want to back the box up off site but not in full (as 30GB is a little too much to transfer every evening).
So my plan was to do a full backup to tape at 7pm then a differential at 8pm (to transfer off site).
The problem I am having is that after my differential has been done the logs get truncated so if I want to replay them for any reason I need to get that differential back to site.
Anyone have any suggestions please?
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Aug 16, 2007
We have received a backup file that is 6G in size. The log file isabout 74G while the MDF is about 5 G when we restored. Is there a wayto run a SQL script to restore the .BAK file without restoring the logfile as we do not have enough space on the server.PS. We are running Sql2K5.Thanks!
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Dec 14, 2006
Hi:
I have configured maintenace plan to do a full backup of sql server at 5:00 Am followed by transaction log backup every 15 mts.The transaction log backup basically appends to existing backups so there is only one file of transaction log backup.
I want to modify that the transaction logs backup only has transaction logs after 5:00 Am full backup.Right now the transaction backup has backup of all the transaction logs since i have scheduled.
Thanks for your help.
Ganesh
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Apr 30, 2015
I would like to know what happens if i shrink the database with truncate only option and do a full backup or transaction log backup ? are the full backup or transaction log backup valid? I know that the performance of the database is bad if i shrink the database. What happens to full backup or transaction log backups?
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Jul 20, 2005
Help,I have a database that has a data file of 2GB and a log file of 31GB.In enterprise manager, when I choose shrink it says there is 30GB ofunused space. When I shrink the database, it does not shrink,(however it says it has completed).I've done a complete backup, tried shrink again, no dice. I thenbacked up the database (which the backup was 1.9GB), deleted thedatabase and made a new database with 2,048MB for the data and samefor the log file.When I restore, the log file jumps up to 31GB again. When I check thespace when I use the shrink, it again says I have 30GB of unusedspace.How on earth do I get this file to shrink?I've been able to shrink other databases, but not this one.TIARob
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Mar 28, 2002
I noticed our log files are getting way too big. I found that a previous
SQL guy had set up the following scheduled job with the TSQL statement:
BACKUP LOG DEV TO DevDailyTranLog with noinit
This runs every 20 minutes.
There's also a Maint Plan to do a Complete backup every night and a
Transaction Backup every hour (could be set to 20 min)
Why do you suppose the BACKUP LOG job exists ? If the maint plan were
set to backup transaction every 20 min, wouldn't the 2 jobs be
duplicating each other ?
Also, I notice that the Tran Logs specified in the database properties
seem awfully big (4 gig), shouldn't they automatically be truncated when
the daily full backup occurs ? (full recovery model)
Feel free to call me and straighten me out or to get more info.
Win2K, SQL 2K
gdunn@taunton.com
203-426-8171 x 374
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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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Jul 20, 2005
Is there any problem with implementating some kind of replication andbacking up transaction logs at the same time? SQL Server 2000 StandardEditionThe server is configured to back up log files regularly, with thepresenceof a(New) Disaster recovery server and with an inability forstandby(Standard Edition)I am planning to implement some kind ofreplication hopefully still backing up the transaction logs to enablea point in time recovery.Thanks in advance for your great ideasVincento
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Jan 29, 2008
I've got a couple of backup database tasks setup to run one after the other. The are set up the same, Alldatabases, backup to a device each, and overwrite every time. The task on databases full works fine but the one on logs fails every time, right away with the following rather esoteric error pulled from logging in the event log.
Event Type: Error
Event Source: SQLISPackage
Event Category: None
Event ID: 12550
Date: 29/01/2008
Time: 09:54:11
User: OILCATSsqlservice
Computer: GUNKVBPROC
Description:
Event Name: OnError
Message: The Execute method on the task returned error code 0x80004003 (Object reference not set to an instance of an object.). The Execute method must succeed, and indicate the result using an "out" parameter.
Operator: OILCATSSqlService
Source Name: Back Up Database Task 1
Source ID: {BF117128-FB4C-470D-AC00-4C68797C2C97}
Execution ID: {450BA60C-2EBF-453B-B3E4-80FBC2042F83}
Start Time: 29/01/2008 09:54:11
End Time: 29/01/2008 09:54:11
Data Code: -1073594108
What is this elusive Execute method that is only relevant to the log aspect of this task?
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May 8, 2007
We run a disk backup (full) early in the evening, and then another bull backup to tape later at night. We also keep independent backups of the logs.
It seems that any full backup "resets" the ability to apply logs when restoring?
I want to be able to restore a full backup, and apply logs forward possibly more than 1 day, in case a backup is corrupted and not usable. But it seems I can only apply logs up until the time of the next full backup.
Is this true, and is there a way around this?
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