Solved

Trim ldf

Posted on 2008-11-01
4
553 Views
Last Modified: 2013-11-05
I am doing FULL backups at 12:00 AM every night with the below script.  From 6:00 AM until 10:59:59 PM everyday I am running the lower most script every fifteen minutes.  Problems is that the database .ldf is growing and growing.  How do I trim it down prior/or during the Full backup?

BACKUP DATABASE [AdminDB] TO  DISK = N'\\clwfile03\system_backups$\CLWSQLPD01\AdminDB_FULL.Bak' WITH NOFORMAT, INIT,  NAME = N'AdminDB-Full Database Backup', SKIP, NOREWIND, NOUNLOAD,  STATS = 10
GO

BACKUP LOG [AdminDB] TO DISK = N'\\clwfile03\system_backups$\CLWSQLPD01\AdminDB_Log.Trn' WITH RETAINDAYS = 1, NOFORMAT, NOINIT,
NAME = N'Pods-Transaction Log Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10
GO
0
Comment
Question by:jsyers
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 250 total points
ID: 22858927
a single transaction log backup will rarely be enough, and in case you don't do it more often, you could as well change the database recovery mode from full to simple (and not do any transaction log backups at all).

so, run the t-log backups every hour (or even more), and the ldf file should stop growing.
0
 
LVL 60

Assisted Solution

by:Kevin Cross
Kevin Cross earned 250 total points
ID: 22858945
If you recovery model is set to FULL then the log truncation should happen automatically after your BACkUP LoG statement.  Here are some reasons that may delay this from Microsoft:

http://msdn.microsoft.com/en-us/library/ms345414.aspx

Maybe what you are seeing is delayed truncation unless I am missing something in one of the options you have set.
0
 
LVL 60

Expert Comment

by:Kevin Cross
ID: 22858958
I agree with Angel.  Thought you indicated you were running the transaction log backup every 15 minutes...which is why I thought it should work as you have it.

Maybe try increasing the time to 1HR as that is what I am using as well and have had no problems with it not truncating.
0

Featured Post

Business Impact of IT Communications

What are the business impacts of how well businesses communicate during an IT incident? Targeting, speed, and transparency all matter. Find out more in this infographic.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

by Mark Wills PIVOT is a great facility and solves many an EAV (Entity - Attribute - Value) type transformation where we need the information held as data within a column to become columns in their own right. Now, in some cases that is relatively…
In SQL Server, when rows are selected from a table, does it retrieve data in the order in which it is inserted?  Many believe this is the case. Let us try to examine for ourselves with an example. To get started, use the following script, wh…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

710 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question