Solved

San Config for SQL 2005

Posted on 2009-05-13
7
200 Views
Last Modified: 2013-11-14
I'm planning my SQL 2005 intallation on VM ESX server.  I have 8 san disks to work with and wanted to know what's the best san configuration for the data and log files.  I will be installing 2 separate SQL servers on different vms.  What I had in mind was create a Raid 10 over 4 disks and create 2 volumes to present as data storage to each SQL install.  Then create either a Raid 1 for the logs.  Please advise.
0
Comment
Question by:nelson97
7 Comments
 
LVL 18

Expert Comment

by:chuckyh
ID: 24378995
raid 10 for data and raid 1 for logs is a good way to go.
0
 
LVL 13

Expert Comment

by:St3veMax
ID: 24379489
RAID1+0 for data is overkill. You're unlikely to notice the difference from RAID5.

Transaction Logs I'd go with RAID1+0.

In Summary:

DATA = RAID5
LOGS = RAID1+0
0
 
LVL 55

Accepted Solution

by:
andyalder earned 500 total points
ID: 24380299
If you create a single RAID 10 volume on four disks and then slice it in half the heads will have to continually seek between the two halves, but that's pretty standatd for SANs anyway though.

I'd go with RAID 10 for data and RAID 1 for logs. Why two seperate small SQL servers rather than one big one?
0
Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

 

Author Comment

by:nelson97
ID: 24388173
Thanks all for the reply.

Andyalder:

I have 4 applications that need SQL dbs and trying to figure out what the best san config would be for deploying this.  Instead of creating a single vm and installing 4 intances of SQL, that I would create 2 vms and install 2 instances of SQL on each vm.  
0
 
LVL 13

Expert Comment

by:St3veMax
ID: 24388435
Why do you even need two instances? Could you not put them all on one instance?
0
 
LVL 55

Expert Comment

by:andyalder
ID: 24389064
I can't see a reason to have more than one instance, you do that for MS (or any other) active/active cluster of course but by the sound of it both SQL VMs are likely to end up running on the same host anyway.
0
 

Expert Comment

by:stol12
ID: 24915349
What version of vmware are you running, Vsphere will increase I/O performance greatly and this will have great impact on databases. Unless you have high demands for I/O I think RAID 5 for data and RAID 1 for logs is the best soultion for you. You can even have the two instances on the same storage in vmware, no need to split the LUN, it will only make things more complicated.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
DS3512 Replace HDD 2 42
How to simplify my SQL statement? 14 50
Configurire Storage Pool via Powershell 8 33
Unable to expand volume to allocated partition on Server 2012 8 51
How to update Firmware and Bios in Dell Equalogic PS6000 Arrays and Hard Disks firmware update.
Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…

911 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

16 Experts available now in Live!

Get 1:1 Help Now