why weekly translog backup is so large

SQLServerCentral is supported by Red Gate Software Ltd.

Popular Topics

Home

Members

Calendar

Who's On

Home » SQL Server 7,2000 » Backups » why weekly translog backup is so large

why weekly translog backup is so large

Rate Topic

Display Mode

Topic Options

Author

Message

sqladmin 45377

Posted Tuesday, November 13, 2012 4:30 PM

Forum Newbie

Group: General Forum Members
Last Login: Tuesday, February 19, 2013 6:57 PM
Points: 8, Visits: 60

I've got a sql 2000 DB with a .mdf size just under 3GB. the log file is about 2GB at this time. Most of the hourly/daily log backups are very small, between 2.5MB down to as small as 140K when there's little to no activity. However, just after my data backup maintenance plan runs the translog backup file is closer to 2.5GB. This plan runs sunday evenings only and backs up the DB and also runs the 'Reorganize data...' step under Optimizations.

I also run a translog plan daily that backs up the Trans log only, once each business hour.

Occasionally this server runs a bit low on disk space, so I'd like to know if there's any adjustment I could make to either maintenance plan that might result in a smaller translog backup after the Reorg Data operation.

Thanks for any feedback!

Post #1384341

Lynn Pettis

Posted Tuesday, November 13, 2012 6:12 PM

SSC-Insane

Group: General Forum Members
Last Login: Today @ 11:55 AM
Points: 21,626, Visits: 27,476

Sounds like you are rebuilding indexes in your maintenance plan. Index rebuilds are a fully logged operation. Even if you switched to bulk logged recovery model the t-log backup would be large even though the t-log itself would be smaller.

Cool

Lynn Pettis

For better assistance in answering your questions, click here
For tips to get better help with Performance Problems, click here
For Running Totals and its variations, click here or when working with partitioned tables
For more about Tally Tables, click here
For more about Cross Tabs and Pivots, click here and here
Managing Transaction Logs

SQL Musings from the Desert Fountain Valley SQL (My Mirror Blog)

Post #1384356

sqladmin 45377

Posted Tuesday, November 13, 2012 6:54 PM

Forum Newbie

Group: General Forum Members
Last Login: Tuesday, February 19, 2013 6:57 PM
Points: 8, Visits: 60

Lynn Pettis (11/13/2012)

Thanks, Lynn. Yes, I've got 'Reorganize data and index pages' checked in the plan that runs weekly. Sounds like there's no way to reduce the size of this log backup when it's created just after the reindex. I guess I could move/save it off to another drive after it gets created (to free up the drive space).

Thanks again.

Post #1384365

« Prev Topic | Next Topic »

Permissions