Solved

Log Backup Fails

Posted on 2010-11-23
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Last Modified: 2012-08-13
I have job which takes the T-log backups for every 15 Mins,but it is failing due to the below error.
Message
Executed as user: XXXXXXXXXXX. backup log db_name  to disk='p:\TruncateLog.trn' with init [SQLSTATE 01000]
 (Message 0)  The backup data in 'p:\TruncateLog.trn' is incorrectly formatted. Backups cannot be appended,
but existing backup sets may still be usable. [SQLSTATE 42000] (Error 3266)  BACKUP LOG is terminating abnormally.
[SQLSTATE 42000] (Error 3013).  The step failed.

I am running the below sql for the job,am i missing anything in the sql,if yes can someone correct it.

declare @sql varchar(500),@db varchar(60)
select @db=min(name) from master..sysdatabases where databasepropertyex(name,'Recovery')='FULL'
while @db is not null
begin
      set @sql='backup log '+@db+'  to disk=''p:\TruncateLog.trn'' with init'
      print @sql
      exec (@sql)
      select @db=min(name) from master..sysdatabases where databasepropertyex(name,'Recovery')='FULL' and name>@db
end

I am running on Microsoft SQL Server  2000 - 8.00.2040 (Intel X86) - SP4


Thanks,
K
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Comment
Question by:Kodukulla
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4 Comments
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 34199403
http://support.microsoft.com/kb/290787

you will need to write to a new file ...
0
 
LVL 6

Expert Comment

by:anushahanna
ID: 34199445
you want to make the INIT to NOINIT since you are dumping all the backups into the same file.
http://msdn.microsoft.com/en-us/library/ms186865.aspx

"Indicates that the backup set is appended to the specified media set, preserving existing backup sets. If a media password is defined for the media set, the password must be supplied. NOINIT is the default."
0
 

Author Comment

by:Kodukulla
ID: 34201154
Hi,anushahanna

If i want to take the backups for all the databases individually ( Different trn dump files ) then.I still doubt something wrong with this statement.

set @sql='backup log '+@db+'  to disk=''p:\TruncateLog.trn'' with init'

How can i give the database name before the ( ""disk=''p:\TruncateLog.trn'' with init'"" ) P:\MyDB_Trncatelog.trn .

Please help.
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LVL 6

Accepted Solution

by:
anushahanna earned 500 total points
ID: 34210447

OK- please try any of these variations:

set @sql='backup log '+@db+'  to disk=''p:\'+ @db+'_'+replace(replace(cast(getdate() as varchar(100)),' ',''),':','')+'_TruncateLog.trn'' with init'
or
set @sql='backup log '+@db+'  to disk=''p:\'+ @db+'_TruncateLog.trn'' with init'
 
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