SSD Drives for a Hyper-V Cluster SAN?

I am building a Server2012 Hyper-V cluster (2 host servers) with a shared SAN storage.

SSD drives in the SAN?

Thumbs up?
Thumbs down?

I'm interesting in reading opinions/documents on this question.

Thanks.
gateguardAsked:
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Yancey LandrumTechnical Team LeadCommented:
We have multiple SQL servers, Exchange 2007, and about 50 other servers all running on a Dell Equallogic iSCSI SAN with 15k drives. No SSD at all on the server side. 4 hosts each with dual 1 GB connections to the SAN. No issues.

Now the virtual desktop infrastructure (VDI) is using a hybrid SAN, with SSD and 10k SAS drives. That's because VDI is much more IOPS-intensive and is right in front of the end-users faces.

If you are only doing virtual servers then SSD is very expensive for very little observable benefit over 15k SAS.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you require the IOPS, e.g. you are doing a VDI deployment, and require fast performance, and are using enterprise SSDs, and not Consumer SSDs.

No issues, Thumbs Up!

But ask what IOPS do you require for your setup.
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gateguardAuthor Commented:
I just want to run a bunch of VMs on a SAN unit, using Microsoft Cluster services between two hyper-v hosts.  I don't think that's VDI deployment, is it?

So does that mean I shouldn't do it, if it's not VDI deployment?

(To be honest, I'm a little confused by your answer.)
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You would normally consider a SSD solution, if you wanted really fast top notch performance, which a VDI solution (e.g. 100 Windows 8.1 VMs all turning on at the same time and booting up).

Desktop and Server performance patterns are different.

If you are using a low VM count, I think you will find SAS 15k disks are fast enough for your needs, but if you have the budget and cash, then purchase SSDs. (although Enterprise units are expensive).
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Gerald ConnollyCommented:
What is your San configuration?
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gateguardAuthor Commented:
Thank you, Andrew.  I understand now.  Sorry for the confusion on my part.

Connollyg, we are in the process of pricing SAN equipment now so I don't have hard details but I know we are looking at two host machines in a Microsoft Cluster with 10gb ethernet connectivity between them and the shared SAN.  That's why we are thinking about what drives to buy.

The machines we will be hosting will be requiring a lot of disk activity so I am inclined towards the SSD, but what Andrew says about the price of Enterprise units might change my mind.
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