Raid and Vmware

jonas-p used Ask the Experts™

I'm installing Vmware ESX but as a company I want data protection.
So I added 3 disk of 1TB add my motherbord DP55WB.
First I created a raid volume, after that i installed esx 4u1, the install went well.
But when I restart there is a problem with loading the grub?
I didn't figured it out, so I deleted the raid volume and set the bios to ahci, reïnstall of esx and everthings works perfect. But how can I fixed this machine so it's in raid and I don't have to worry about my data loss.

Next question I have is about VMotion.
How can I enabled this in my ESX, the license is fine.
But in the sumarize tab it's still N/A.

Thanks a lot.
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Do you only have 1 ESX server or do you have a cluster of them?  You need at least 2 ESX hosts so that you can vmotion VM servers between them.
Top Expert 2009

What is your hardware make/model? Did you check vmware hcl?
There are few requirements for vmotion, you dont need to setup cluster to do vmotion unless you want to utilize DRS/HA feature but you need at least 2 esx hosts with shared storage(FC SAN, iscsi SAN, NFS) NOT local storage to be able to do vmotion
Network requirement must at least giga NIC
Most important CPU on source & destination server must be from the same family & vendor(Intel or AMD)
Senior IT Advisor
Top Expert 2008
The issue is thatt your raid controller is onboard and is basically software raid, some refer to as "fake raid" Because ESXi requires a true hardware radi controller as noted by ryder above it will not see the RAID you setup in the bios.  You probably have a ICH9 or similar onboard radi controller and this is normal for this type of hardware.  If you want it to see raid you will need to get a hardware raid controller



Okay thank you all for the information.
So If i want raid and data protection i have to get a raid controller card.

About the VMotion, yes i have multiple (3) esxi servers, and want to set them in a cluster.
The problem I think is they don't have shared storage, the have all local storage.
So I have to get SAN or NFS, can i convert one esxi server to a SAN or NFS where all the data will be stored? Then I can get one raid controller for this machine and don't have to buy 3 controllers.
Is this a good option ?

Thanks a lot.

Paul SolovyovskySenior IT Advisor
Top Expert 2008

For vMotion you will need to have shared storage.  If you want the ESXi OS to be on a raid volume on the ESXi hosts that is the best solution but you can also run ESXi off of a USB stick.  If it fails you can re-install in a few minutes.  Just remember for vmotion, HA you will need to purchase vCenter for live vmotion, otherwise you will need to shutdown the VM to migrate

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