Solved

SQL2014 best RAID practice

Posted on 2015-01-08
3
67 Views
Last Modified: 2016-12-08
Hi Experts,

I have to install two SQL 2014 servers on premise.
Both server are in an availability group.

What do you recommend for the raid setup ?
I have seen

Adaptive Read Ahead
Read Ahead

Write Back
Write through
Force write back

My partitions are:

OS -> Raid1
DB -> Raid10
LOGS -> Raid10
TempDB -> on SSD with Raid1

But I was not sure with READ AHEAD and WRITE BACK.
Maybe you can give me some hints.
0
Comment
Question by:Eprs_Admin
  • 2
3 Comments
 
LVL 42

Accepted Solution

by:
EugeneZ earned 500 total points
ID: 40540981
it depends on what for you plan  to use it
also id it VMware? physical? SAN based storage?
How many array controllers? etc..

check
SQL Server Storage Best Practices
http://sqlmag.com/storage/sql-server-storage-best-practices

also check about disk caching
http://www.experts-exchange.com/Database/MS-SQL-Server/Q_27806793.html
"
As far as disk caching goes, you need to make sure you are safe or you risk major data corruption risk.  Make sure your cache is backed by a battery or is redundant.  If not, the data in cache will be lost during a reboot/crash and your data is in a hosed inconsistent state. This is especially true with Write Back Caching.
 Check out:
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=173993

 Also then go to this link and actually get a real baseline:
http://sqlserverpedia.com/wiki/SAN_Performance_Tuning_with_SQLIO

  You can use it but turn off any READ caching, SQL server is a in memory db engine and will use RAM as much as possible.  Using cache memory for reads is a waste for SQL Server.  If you need to read from your disk cache for SQL, there's something wrong.


"
0
 

Author Comment

by:Eprs_Admin
ID: 40557193
Thanks a lot
0
 

Author Closing Comment

by:Eprs_Admin
ID: 41650337
Great, I have found the best setup for my SQL AG.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Stored Proc - Rewrite 42 62
Economy of Scale - IT Business 4 30
Shrink multiple databases at once 4 32
How can I use this function? 3 14
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
Via a live example, show how to setup several different housekeeping processes for a SQL Server.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

820 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