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jjozFlag for Australia

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Using OpenFiler to create 2 TB+ NTFS / NFS datastore over VMware

Hi All,

I'm about to create a very large file system for Windows Server and client to use (NTFS), by using Openfiler as the iSCSI initiator. [any other free appliance is also great]

Can OpenFiler that is deployed on my VMware ESXi as VM presenting / using the unformatted 2 TB+ datastore as the RDM ? [Because of the VMFS limitations it cannot recognize or use > 2 TB datastore]

My situation is to utilize the unused 6x 500 GB SATAII disks that is on my Dell Power Edge server, all of the VM is on my SAN.

Any kind of help and suggestion in presenting the unformatted LUN greater than 2 TB to the Windows Server would be greatly appreciated.

Thanks.
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jakethecatuk
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ah.. ok, so in this case i've created the VMFS LUN > than 2 TB, and now I shall begin to install OpenFiler and then add 2x1TB HDD (VMDK) into it ?

cmiiw
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Do I understand this correctly....

You have a Dell server that you want to run Openfiler on to allow it to be an iSCSI target for your Window VM to use so that your Windows VM can have larger than a single TB disk to use instead of using a VMDK for it. Is that correct?  If it is then yes you could do that however I would caution on using snapshots on the Windows VM. (I haven't read about that but I would assume that a snapshot could be potentially disastrous if you reverted to it. Suggest more research on that.)

Or is your ESXi running on the Dell server directly?
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ASKER

Q:Is your ESXi running on the Dell server directly?
### my ESXi is installed on USB drive which is attached to my Dell Poer Edge 2950-III server, so that i can utilize th maximum 6x500 GB disk space.

Finally, here's what I'vegot, it is configured on my ESXiVM with the following Openfiler configuration:

R/W Mode: Write-thru
Transfer Mode: blockio

hopefully I'm on the correct path.
iSCSI-BlockIO-WriteThru.jpg
So assuming that your Openfiler and the Windows VM are on separate hosts I can understand why you want to do this. If they were running on the same host, then I would suggest giving the Windows VM the raw disk mapping directly.

So the answer to your original question Can you do this?  The answer would be YES.  The question is should you do this? I am not clear on that answer.
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"If they were running on the same host, then I would suggest giving the Windows VM the raw disk mapping directly."
### yes this Openfiler is running on the ESXi server but the Windows Server that is going to use this storage is  a physical server.
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yes, thanks for the explanation sir, I do appreciate it so much.

Little more difficult to backup Disaster Recovery image of the VM. --> this is a fileserver for backup purpose so no need to back it up again :-)
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ASKER

thanks for the responses.