Solved

Best Raid1 configuration for ESXi System

Posted on 2011-02-18
9
1,380 Views
Last Modified: 2012-05-11
I have a server i'm converting from RAID5 into RAID1 for performance benefits.

The RAID card is an Intel SRCSASLS4L (HW Raid) and I have connected 3x SAS 10,000K drives.

I'll be running 2 in RAID1 and another as a JBOD for nonessential VM's.

The configuration questions I'm after are: (left is default)

Strip Size: 64k - 1024K
Read Policy: Normal, Adaptive, Ahead
Write Policy: WThru, WBack
WrThru for BAD BBU (ticked?)
IO Policy: Direct, Cached
Disk Change Policy: No Change, Enable, Disable
Disable BGI: No, Yes
0
Comment
Question by:lemonville
9 Comments
 
LVL 120
ID: 34930531
Are you experiencing performance problems at present?
0
 
LVL 120
ID: 34930536
How many VMs, what type of VMs, what is the Host, Host Memory, CPU etc?
0
 
LVL 1

Author Comment

by:lemonville
ID: 34930537
In Raid5. Yes.
0
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 
LVL 1

Author Comment

by:lemonville
ID: 34930544
15 or so VM's. Linux and Windows. Running web servers (Linux & Windows) and various other items.

Host is a Dual Intel Xeon Quad Core with 16GB Ram.
0
 
LVL 120
ID: 34930564
So you are experiencing performance issues?

It's a little vague the information about VMs, but I would have thought, RAID5 with 3 x SAS 10k, you would have been okay.

But if you've been having issues, try RAID 1. I'm not personally familiar with this controller, Intel are not really know for their Raid Controllers. But I'm sure one of the storage Experts, will be able to advise about the specific settings.

What's the server?
0
 
LVL 8

Expert Comment

by:sharkbot221984
ID: 34930610
If you've got room in your box for one more drive, it appears your card will support RAID10.   Although you'd lose that JBOD storage, but I'd take RAID10 over RAID1 for sure.
0
 
LVL 1

Author Comment

by:lemonville
ID: 34930699
@sharkbot

Unfortunately not enough room.
0
 
LVL 28

Accepted Solution

by:
bgoering earned 500 total points
ID: 34930919
Strip Size: 64k - 1024K - 256k
Read Policy: Normal, Adaptive, Ahead - Adaptive
Write Policy: WThru, WBack - Write Back
WrThru for BAD BBU (ticked?) - yes ticked
IO Policy: Direct, Cached - direct (guessing this is read policy)
Disk Change Policy: No Change, Enable, Disable - Assume this is Cache not Change policy - disabled
Disable BGI: No, Yes - Yes - just do full initialize before using it

More Info: ftp://download.intel.com/support/motherboards/server/sb/configuring_raid_for_optimal_perfromance_11.pdf

Good Luck
0
 
LVL 1

Author Closing Comment

by:lemonville
ID: 34940930
Great, thanks for your assistance.

Cheers
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

When rebooting a vCenters 6.0 and try to connect using vSphere Client we get this issue "Invalid URL: The hostname could not parsed." When we get this error we need to do some changes in the vCenter advanced settings to fix the issue.
The business world is becoming increasingly integrated with tech. It’s not just for a select few anymore — but what about if you have a small business? It may be easier than you think to integrate technology into your small business, and it’s likely…
Advanced tutorial on how to run the esxtop command to capture a batch file in csv format in order to export the file and use it for performance analysis. He demonstrates how to download the file using a vSphere web client (or vSphere client) and exp…
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…

726 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