Solved

MSDE, transaction logs and partitions

Posted on 2010-11-15
8
358 Views
Last Modified: 2012-05-10
Hi

We have an application that runs on Windows 2008 servers. It requires a DB so we'll also have MSDE installed on the same box.

I understand that it's generally better to have transaction logs on RAID 1 and the database on RAID 5.

We could have the transaction logs on the same RAID group as the C drive in that case.

C: OS and transaction logs
D: Application and MSDE database

However, is there any issue with having two write intensive 'applications' (the OS and the transaction logs) on the same partition?

Also, I guess there is a higher risk placing them on the C drive in case the logs fill up the C drive and knock the server over?

What are people's recommendations?
0
Comment
Question by:Joe_Budden
  • 5
  • 3
8 Comments
 
LVL 10

Accepted Solution

by:
Humpdy earned 500 total points
ID: 34135776
you should never place the T-Logs on the OS Drive, never!!
Ideally you would place your datafiles on one physical volume, and your T-Logs on another separate volume.
Ideally you would separate out again your tempdb to a disignated disk for the data file and one for the log file.
Depending on the amount of CPUs your server has as well, you should create multiple datafiles for your tempdb.
0
 
LVL 10

Expert Comment

by:Humpdy
ID: 34135778
also, for write intensive applications you should look at RAID 10 instead of RAID 5
0
 
LVL 1

Author Comment

by:Joe_Budden
ID: 34136103
Thanks! Out of interest, what's the reason for never placing transaction logs on the C drive?
0
 
LVL 10

Expert Comment

by:Humpdy
ID: 34136123
it's bad practice,
t-logs should be placed on their own spindle, outside of the OS.
Also, for fault tolerance, you want them on a separate disk in the case of a disaster happening.
Performance gains when placed outside of OS drive.
0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 
LVL 1

Author Comment

by:Joe_Budden
ID: 34136289
Thanks..

As regards to placing t logs on their own drive, does this include when circular logging is enabled?
0
 
LVL 10

Expert Comment

by:Humpdy
ID: 34136371
the actual t-logs is circular logging anyway, but still, should always be placed separately to data fils.
0
 
LVL 1

Author Comment

by:Joe_Budden
ID: 34136427
Ah ok.... I thought t logs were only flushed with a full backup ?
0
 
LVL 10

Expert Comment

by:Humpdy
ID: 34136493
by ciruclar log, it's not automatic.....
yes, you need to truncate the log essentially for it to wrap around.
Doing a transaction log backup within SQL will do this.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Join & Write a Comment

Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
This tutorial will show how to push an installation of Backup Exec to an additional server in both 2012 and 2014 versions of the software. Click on the Backup Exec button in the upper left corner. From here, select Installation and Licensing, then I…
This tutorial will give a an overview on how to deploy remote agents in Backup Exec 2012 to new servers. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as connecting to a remote Back…

746 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now