Oracle Consulting Oracle Training Oracle Support Development
Oracle Books
SQL Server Books
IT Books
Job Interview Books
Rampant Horse Books
911 Series
Pedagogue Books

Oracle Software
Write for Rampant
Publish with Rampant
Rampant News
Rampant Authors
Rampant Staff
Oracle News
Oracle Forum
Oracle Tips
Articles by our Authors
Press Releases
SQL Server Books

Oracle 11g Books

Oracle tuning

Oracle training

Oracle support

Remote Oracle


Privacy Policy


  SQL Server Tips by Burleson

Proper Database and Log File Placement

Lastly, with respect to database I/O, the DBA should make sure the database and log files are on separate drives and the drives are formatted properly for the files’ demands. For static databases, this might not be too much of an issue, but for dynamic databases, it is critical.

Separating database and log files help lessen the impact of physical I/O contention at the server level as long as separate controllers exist for the drives in question. Drive selection and formatting are important, too. Log activity is obviously very write intensive, so RAID format selection makes a big difference in performance. RAID5 is not the natural choice for log or TEMPDB files, but RAID0, RAID1, RAID0+1, or RAID1+0 are good choices. RAID5 can be okay for database files, especially for read intensive databases.

Chapter 5 contains a procedure named up_bn_storage_overview that provides a good storage overview of SQL Server and specifically presents a listing of database and log placements on the server drives. This procedure instantly reveals if database and log files were accidentally placed on the same drive or other drives whose RAID levels are not right for the files in question.

After performing server and database workload analysis, the DBA can then begin to dive into session and SQL analysis, focusing on databases exhibiting the highest overall server workloads.

The above book excerpt is from:

High-Performance SQL Server DBA
Tuning & Optimization Secrets

ISBN: 0-9761573-6-5
Robin Schumacher  

Linux Oracle commands syntax poster

ION Oracle tuning software

Oracle data dictionary reference poster

Oracle Forum

BC Oracle consulting support training

BC remote Oracle DBA   



 Copyright © 1996 -2017 by Burleson. All rights reserved.

Oracle® is the registered trademark of Oracle Corporation. SQL Server® is the registered trademark of Microsoft Corporation. 
Many of the designations used by computer vendors to distinguish their products are claimed as Trademarks

Hit Counter