Solved

Best SQL Server disk configuration

Posted on 2011-02-19
2
567 Views
Last Modified: 2012-05-11
I currently host several servers which each have SQL Server and about 150 databases each.  The databases all get moderate usage and I'm concerned about IO.  Currently I use SQL failover with a witness instance.  Each SQL server currently uses 2 x 2TB disks (Western Digital RE4's).  My ram is maxed out at 96GB and I believe the disks are my bottleneck.  Would using 8 disks to achieve 2TB+ result in much better performance?  What do I need for the best IO?
0
Comment
Question by:Phil5780
[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 Comments
 
LVL 6

Accepted Solution

by:
Gugro earned 250 total points
ID: 34934907
> Would using 8 disks to achieve 2TB+ result in much better performance?  

when your databases are eating up the ~140 IOPS the 2 disks will deliver,
sure throwing in more disks will increase the performance ...

So first step: monitor your system and see where the bottleneck is:
- are the disks maxed out by their IOPS -> throw in more disks
- are the CPUs maxed out -> throw in more/faster cpus
- are the databases using all ram and the cache ratio is still low
  -> throw in more memory
0
 
LVL 60

Assisted Solution

by:Kevin Cross
Kevin Cross earned 250 total points
ID: 34946959
Do you already have disks on separate spindles for base code, data and log files?
While you are on this topic, this might be a good read:
http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/A_1811-SQL-server-Storage-system-Selecting-the-appropriate-RAID-level.html
0

Featured Post

Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

Question has a verified solution.

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

There have been several questions about Large Transaction Log Files in SQL Server 2008, and how to get rid of them when disk space has become critical. This article will explain how to disable full recovery and implement simple recovery that carries…
In this article I will describe the Backup & Restore method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

617 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