Is It OK To Copy Database Backups To Tape Using Compression?
Dec 27, 2006
Hi, I back up SQL Server 2000 and SQL server 2005 databases to hard disk using the SQL Server Backup Wizard and maintenance plans. Then, I copy the resulting backups to tape using third party tape backup software and compression by the backup software and hardware. I do not use the SQL Server Agent available for the third party backup software. Is this acceptable, or does the compression performed by the third party backup system introduce opportunities for database corruption or other negative effects?
Thanks
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Jun 19, 2007
Hi All
I have a database which is 72GB, which is backed up every night as part of the maintenance plan. I have plenty of storage space, and the server that runs the database is fairly powerful (quad-processor 3.2ghz, 64bit, 48GB RAM) and is part of an active-passive cluster. The database backup is also copied to a SAN location.
My issue is with the size of the backup file. As part of the Disaster Recovery plan, I need to copy this database backup file accross the network to a remote site, so that in the event of a disaster at the site, business can continue at the remote site after restoring the database backup file. However, my database backup file is so big that I cannot copy it accross the network in time for the next morning. I have tried using WinRar and have managed to achieve a file about 20% of its original size, but it takes 2 hours to produce this file.
Is there any recommended reeading for this type of issue? Log shipping / mirroring has been investigated and will be part of the DR model but the 'powers that be' insist on having a full copy performed to the remote site.
Any suggestions? Thanks in advance guys n gals :-)
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Oct 30, 2000
Perhaps this maybe a silly simple questions SCENERIO: Say i want to make a nightly backup of the Masterdb and the same for a user database. One that kicks off at 8 and the other at 9. For soem reason I am having difficult time with this..
Some help please??
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Mar 3, 1999
I have a COTS database on MSSQL 6.5, no service packs...
I used sp_help_revdatabase to create the same database on a different server, using the same data and log device sizes and paths. I scripted the database, tables, stored procedures, and user defined datatypes, created them on the new server, and tried to restore a tape dump from the previous server to the new database. It would say "restoring", but then "DBLibrary is dead or connection broken", when I click OK to this message, it sais "restore complete" then the database appears grayed out and reads "loading".
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Jan 14, 2008
My tape backups have started failing, due to time out errors.
I noticed that if I try restore headeronly from the tape drive I also receive a backup error.
I'm thinking that it could be the tape drive HP DAT 72 but thought I'd ask if anyone had any other suggestions.
This is the command I'm running: RESTORE HEADERONLY FROM TAPE = '\.Tape0' WITH NOUNLOAD
I am greeted with this result:
********************************
Msg 4027, Level 16, State 1, Line 4
Mount tape for RESTORE HEADERONLY of database '' on tape drive '\.Tape0'.
Msg 3229, Level 16, State 1, Line 4
Request for device '\.Tape0' timed out.
Msg 3013, Level 16, State 1, Line 4
RESTORE HEADERONLY is terminating abnormally.
**************************************
It doesn't happen all the time, but roughly half the time the backups fail.
If I go to the Computer Manager then Storage--> Libraries --> Hewlett Packard DAT 72 (my tape drive) it shows the Red X over the drive.
It lists it as an off-line library.
Any thoughts on this?
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Aug 14, 2007
We have a heterogenious network of Windows 2003 Server/SQL Server 2005 machines and Linux file servers. For various reasons our HP/Compaq DLT tape drive robots are attached to our Linux file servers.
What options exist for sending backups to remote tape drives that are attached to a Linux host? I'm interested in solutions that have been actually implemented (we've been having plenty of fun with "this should work" scenarios ).
Thanks,
--Andrew
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May 27, 2008
Hello,
I would like to know if anyone has a recommended method for having backups to tape while running log shipping. For example, is it possible to copy the transaction log backups used for log shipping to tape and apply them to a Full Database Restore from a 3rd Party Backup tool such as Veritas?
My goal is to be able to do a point-in-time restore from tape and still be able to use SQL Server 2005 Log Shipping.
Thanks,
Erik
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May 5, 2015
Can we backup our cluster databases directly to tape using native backups (without using any third party tool) ? It's SQL Server 2012 two node Active/Passive cluster. One of the DB will be huge in size, hence checking if we can directly backup from the cluster instance to a tape.
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Jan 9, 2001
Hello,
I need to backup the database to file and then copy it to Tape. Can anyone guide me how I should do it. I need to automate it.
Thanks.
Rea
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Jun 11, 2015
I just completed a copy-Only compressed backup of a DB (with a FULL Recovery Model ) on SQL Server 2012 and the resulting backup (the bak file) is 1/100th the size of the data & log file. Is the compression in SQL Server 2012 just that good or did something else happen that I did not catch? Below is the T-SQL to re-create the backup. The size of the data file is 750MB and the log file is 75GB and is %95 used according to the SQLPERF command.
Does the compression in SQL Server 2012 simply that good
BACKUP DATABASE [MYBIGOLEDB] TO DISK = N'Z:Microsoft SQL ServerMSSQL11.MSSQLSERVERMSSQLBackupMYBIGOLEDB_20150611.bak' WITH COPY_ONLY, NOFORMAT, INIT, NAME = N'MYBIGOLEDB-Full Database Backup', SKIP, NOREWIND, NOUNLOAD, COMPRESSION, STATS = 10
GO
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Apr 16, 2004
I'm having difficulties copying a production DB to a new computer using backup files. The production computer had tempdb on the D: drive, the new computer is much smaller and only has a C: drive. I've successfully restored the Master DB backup but now the database will only start with the (-F) parameter. I know how to Alter the DB to move the tempdb, but I cann't get the DB to start while Tempdb is pointed to the D: drive
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Jul 11, 2014
We have just implemented a SQL 2012 always on environment. We have a primary and secondary server. I am confused about how to set up the backup plans. The application team was happy to tell me that in sql 2012 always on we can offload the backups to the secondary, thus reducing overhead on the primary server.
However, the secondary only supports copy only full backups. I am unsure how these would be useful in a disaster event? I could not apply any trx log backups on a copy only backup. This means I need to run my full backups on the primary server?
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Dec 4, 2014
I found it pretty interesting. I checked the size of a database, before implementing database compression across all the user tables in a database. And Post implementation of compression too I checked the size of the database.
I did not find any difference. But if I expand the table and check propetires->storage and I can see that PAGE compression is implemented across all the tables, but no compaction in the size of the db. It still remains the same.
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Nov 25, 2014
On one of our SQL Server 2014 boxes each database has a copy-only full backup made every night, in addition to the maintenance plan schedule of a full backup weekly, daily differential backups and log backups.
When performing a PIT restore in SSMS the restore file list lists the most recent copy-only backup as the full backup to use, not the most recent plan full backup. I noticed that using SSMS 2008 to start a PIT restore on the 2014 box does not have this problem, and lists the correct restore file sequence (ignores the copy-only backups).
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Apr 19, 2001
Does anyone know if it is at all possible to restore a single database from tape if no backup jobs have been ran or setup for this database. However, the server itself has been backuped to tape. So I would like to restore this database from the server tape backup. If so, how do I accomplish this?
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Jan 15, 2004
I am trying to backup a database to tape. I'm using Microsoft SQL Server 2000 Enterprise Edition.
When I try to do the backup using Enterprise Manager I see the following message:
Microsoft SQL-DMO (ODBC SQLState: 42000)
Cannot open backup device '\.Tape0'. Device error or device off-line. See the SQL Server error log for more details.
BACKUP DATABASE is terminating abnormally.
In the Event Viewer is logged the following message:
Event Type:Error
Event Source:MSSQLSERVER
Event Category:(2)
Event ID:17055
Date:14/1/2004
Time:10:29:20
User:N/A
Computer:MySQLName
Description:
18204 :
BackupTapeFile::OpenMedia: Backup device '\.Tape0' failed to open. Operating system error = 5(Access is denied.).
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
I can do the backup to disk normally, but I need to do to tape.
Please, help me to solve this issue.
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Jun 9, 2006
Dear sir/madam,
I am from NTU, Singapore and we have a windows 2003 server edition installed on a DELL server and it also runs MS SQL server 2000 for a project of ours. We have installed a HP tape drive on the dell server and it works fine if ntbackup is used at the command prompt but then the SQL enterprise manager does not recognize the tape drive and backing up of our database is of high priority as it contains sensitive information. But the tape drive is installed properly as the device manager does not show any error and ntbackup also recognizes it. I cant seem to figure out why SQL server 2000 cannot recognize it. It would be very helpful if you could kindly guide me on this issue.
Thanking you
Regards
Lavanya Janardhanan
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Apr 11, 2007
I backup the database into tape0 using management studio and can see the contents in the backup media.
However when I tried to restore, the error "timeout expired" appears and sometimes together with the error "restore headeronly is terminated abnormally".
Please advice and thank you in advance!
Below is the error message:
===================================
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
------------------------------
Program Location:
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteWithResults(String sqlCommand)
at Microsoft.SqlServer.Management.Smo.ExecutionManager.ExecuteWithResults(String query)
at Microsoft.SqlServer.Management.Smo.BackupRestoreBase.ExecuteSqlWithResults(Server server, String cmd)
at Microsoft.SqlServer.Management.Smo.Restore.ReadBackupHeader(Server srv)
at Microsoft.SqlServer.Management.SqlManagerUI.SqlRestoreDatabaseGeneral.buttonSelectDevice_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
===================================
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. (.Net SqlClient Data Provider)
------------------------------
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-2&LinkId=20476
------------------------------
Server Name: NTSRV1
Error Number: -2
Severity: 11
State: 0
------------------------------
Program Location:
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error)
at System.Data.SqlClient.TdsParserStateObject.ReadSni(DbAsyncResult asyncResult, TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParserStateObject.ReadPacket(Int32 bytesExpected)
at System.Data.SqlClient.TdsParserStateObject.ReadBuffer()
at System.Data.SqlClient.TdsParserStateObject.ReadByte()
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteWithResults(String sqlCommand)
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May 11, 2006
Hi,
I set up DB mirror between a primary (SQL1) and a mirror (SQL2); no witness. I have a problem when I issue command:
alter database DBmirrorTest
Set Partner = N'TCP://SQL2.mycom.com:5022';
go
The error message is:
The remote copy of database "DBmirrorTest" has not been rolled forward to a point in time that is encompassed in the local copy of the database log.
I have the steps below prior to the command. (Note that both servers' service accounts use the same domain account. The domain account I login to do db mirror setup is a member of the local admin group.)
1. backup database DBmirrorTest on SQL1
2. backup database log
3. copy db and log backup files to SQL2
4. restore db with norecovery
5. restore log with norecovery
6. create endpoints on both SQL1 and SQL2
CREATE ENDPOINT [Mirroring]
STATE=STARTED
AS TCP (LISTENER_PORT = 5022, LISTENER_IP = ALL)
FOR DATA_MIRRORING (ROLE = PARTNER)
7. enable mirror on mirror server SQL2
:connect SQL2
alter database DBmirrorTest
Set Partner = N'TCP://SQL1.mycom.com:5022';
go
8. Enable mirror on primary server SQL1
:connect SQL1
alter database DBmirrorTest
Set Partner = N'TCP://SQL2.mycom.com:5022';
go
This is where I got the error.
The remote copy of database "DBmirrorTest" has not been rolled forward to a point in time that is encompassed in the local copy
Thanks for any help,
KT
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Nov 4, 2006
Hello,
if i have a given database (a model) and i want to copy this database in the same database instance. Is it ok to copy the mdf and ldf file and attach the files with a new database name in the same instance.
Or is the datebase name part of the .mdf file?
Regards
Markus
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Nov 15, 2015
The space allocated to the Log in question is 180 GB. During this time period I was running TLog backups every 5 minutes, yet the log continued to chew through to 80 GB used, even after the process was complete and a final TLog backup had been taken. It continued to stay very large until the Full backup was complete -- or something else that I'm unaware of completed. Like every other DBA I typically take a TLog backup to shrink the log, but what appeared to be the case here was the Full completed and it released the used log space. All said, will Transaction Log backups not free up the log during Full backups?
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Mar 16, 2001
Why is my database backup file so big? It's about 10 X bigger than the actual data files
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Nov 27, 2000
I know that I have read not to backup a database over a netwrok. So I am curious as to what others are doing out there. BAckup to your local hard drive on the server and then move the backup files to a repository some where on the network? Do others have a file structure out on another server that stores all of the backups from all of the different servers that have SQL 7.0 on them? We are a small company and are just starting to migrate data to SQL Server 7.0.
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Mar 16, 2006
I have to perform a backup for disaster recovery purposes before an application upgrade. The upgrade will alter the database and stored procedures. My cuurent backup takes a backup of master and msdb weekly. The user database uses the Full Recovery model and is backed up daily at 21:00 and the logs daily at 13:00. Assuming the databse is modified between the last backup and the upgrade starting at 9:00am what should my backup stratergy be for roll back purposes.
1) backup master, msdb and the user Database to a different location than the normal backups. Use these to restore if required
2) backup the master, msdb and user databases using the same jobs and therefore overwriting the original evening backups
3) do nothing and just restore master and msdb from a backup and replay the logs to a given point in time for thr user database should the upgrade fail
Any help or suggestions will be much appreciated.
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Oct 28, 2006
Hello I am a software developer with minimal SQL server administration skills. Currently I am using SQL Server 2000.I need to know if there is a way to copy a particular table from a database, and to copy the table into a different database.Basically on a project I am working on we are using a table named "Customers" from a database named QTR. We need to copy this database table into a different database named "Research". How can this be done? Is if very complicated?
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Nov 12, 2000
Hello,
Can anyone tell me what the impact of dynamic database backups in sql 6.06.5
will have on users using the database?
Will their user processes be blocked?
Will their queries run slower than normal (how slower)?
Will there be a lot of locking activity as the SQl tries to backup?
Will the serverdatabase run slower
Anything else I may be missing?
Regards,
Hitesh
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Jul 28, 1998
I am looking for the best method to backup SQL Server databases. Currently we are
running a dump database statement to disk and backing up the files to tape through Arcserve.
One problem that I am having is the statement to dump the database. I would like to retain
the dump for at least three days and be able to restore the database from any one of those
three days. My current statement is:
"DUMP DATABASE CHOISDAT TO DISK=`D:BACKUPCHOIS.BAK` WITH
NOUNLOAD , STATS = 10, INIT , RETAINDAYS = 3, NOSKIP"
but, every other day I receive the message from SQL executive:
"Can`t open dump device `D:BACKUPCHOIS.BAK`, device error or device off line.
Please consult the SQL Server error log for more details. (Message 3201)"
What am I doing wrong? Any suggestions?
P.S.
Is there anyway to tell the Maintenance Wizard to delete the backups. I tried using the wizard but
the backup files still remain on the disk and I have to delete them every week.
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Jun 4, 2008
HI Gurus,
Can anyone of you please post the link related to types of database backups which i can use for my reference purpose.
Thanks,
ServerTeam
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Feb 26, 2004
Our DBs are set up to do a full backup once a day (late at night) and then transaction log backups during the day at shorter intervals.
I want to setup a dev database on the same server. I want this database to be an automatically restored copy of the live database. So every night, after the full backup of the live DB, I want to restore the live DB to this dev DB.
Can this be automated? Can the restore automatically stop the dev database in case some open connections exist?
Is there a better way to do this?
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Sep 13, 2002
In a non-clustered environment, I am under the impression that backups must be to a local disk or local tape device.
My plan is to have a separate disk in a clustered environment on a shared array for holding my backups, until they can be transferred somewhere else.
My question is, will SQL Server 2K support backing up to the disk in the shared array since it is (I believe) not considered a local disk? What key points may I need to know.
Thanks very much for the help!!
solart
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Jun 2, 2014
I have inherited a new SQL Server 2008 database server and can not figure out how my user databases are being backed up. This database server is running under a VM.
All the user databases are being backed up nightly per the SQL server log. The backups are written to a virtual disk and is kicked off by the NT AUTHORITYSYSTEM user. I can not see the virtual disk. A restore task does not provide any information about the last backup. I have created a new database, and it is automatically included in the next set of backups.
I have looked at the windows event viewer with out any luck. There are no SQL Server Maintenance Plans or Agent jobs that call a backup. I have also checked the Windows Task Scheduler and can not find any task that does a backup.Could the backups be called from another server ?
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May 8, 2007
Hello everyone! Looking for some insight here on database backups that fail.
We have many SQL servers that we maintain by storing Job/Maintenence Plan history on a central server, which then emails out daily reports to let us know what backed up last night and what didn't
This was easy to do in SQL 2000, not so much in SQL 2005. I have put together a query that gathers the info I need for the successes:
SELECT DISTINCT '00000000-0000-0000-0000-000000000001' AS Plan_ID, mpld.line1 as "Plan Name", bud.database_name as "Database", mpld.server_name, 'Backup Database' as Activity, mpld.succeeded, bs.backup_finish_date, DATEDIFF (MS,bs.backup_start_date,bs.backup_finish_date) as Duration, bs.backup_start_date, mpld.error_number, mpld.error_messageFROM msdb.dbo.sysmaintplan_logdetail mpld
INNER JOIN msdb.dbo.backupset bs
on (select convert(char(12),mpld.start_time,109))=(select convert(char(12),bs.backup_start_date,109))-- on bs.database_name=bud.database_name
inner join
msdb.dbo.bu_dbs bud
on bs.database_name = bud.database_name
WHERE mpld.succeeded = 1 and mpld.line2 like 'Backup%' and bs.type='d'
and bs.backup_start_date > ( SELECT CONVERT(char(12), (GETDATE()-1), 109) )
ORDER BY bud.database_name DESC
But I am having trouble using a query to determine the databases the FAILED during backup. MSDB.BackupSet and MSDB.SYSMaintPlan_LogDetail really have nothing,because often times, even if a step in a Maint. Plan fails, the plan finishes reporting success.
Does anyone know of a good way to gather info about failed database backups?
Thank you!
Mario
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Jul 23, 2005
Hi All.I'm currently maintaining 4 servers - 1 for public/customers and 3for backups, development, etc...I regularly backup the entire SQL database for our public server andrestore it on each of the other servers. Lately, however, the databasebackups have grown (in size) incredibly fast - they've gone from about200MB to 2+ GB in 2 months. (I wasn't entirely surprised by this atfirst since our client traffic has drastically increased as well.) Theweird thing, though, is that (on two of the backup servers) when Irestore the backup then use those servers to create a new completebackup, the new backup is only about 200-300 MB in size.My assumption is that there's some kind of setting buried deep insidethe sql configuration allowing it to compress or otherwise alterbackups. Does anyone have any ideas/thoughts as to what may be causingthis issue?We're using SQL Server 7 on Windows 2000 servers.Thanks in advance.GreggJoin Bytes!
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