High availability solutions for an app on Windows Server 2008

Hello,

I need to find a way to implement high availability to some home-made apps on a windows server 2008 enviroment and I would like to know what are the best options to do this.
ScreenFoxAsked:
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SandeepConnect With a Mentor Sr System AdministratorCommented:
Take a look at something like this.

http://www.studionetworksolutions.com/evo/

above you can chose for ESX Host.

If you going to use Microsoft Server option, you can do it as below :-

2 Servers with Microsoft Windows Server 2008 Entp / R2
1 Server or Machine with Server OS. Get http://www.starwindsoftware.com/ iSCSI software installed on it. This will share the server's Storage as a iSCSI Shared Storage over LAN. By making use of this you can configure the Cluster between your server. But for the third machine you have to get a good system availability, so see you get it in RAID 5. If you 3rd machine goes down your whole application will crash, but using the disk on another server you can configure it again. This will be rare case, but I thought to give you a hint. Same issue you can face in SAN Network if storage goes down, ESX Host will crash due to datastores unavailablity.
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SandeepSr System AdministratorCommented:
Exactly what kind of application you have which is installed on Windows Server 2008?

Do you want the application to keep continuously running on the server? Normally to provide high availability to the application/server you need more than one Server. There are various options then you get.

From Microsoft - Fail over cluster management is the one, but here arranging shared store at home would be much costlier.

http://technet.microsoft.com/en-us/library/hh831579.aspx

From VMWare - You need to install two ESX Host and later then install one Windows Based Virtual Server on it which will be put in cluster on the two ESX Host which you have. This one is also tricky to configure at home.

http://www.vmware.com/in/products/vsphere/features/high-availability.html
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ScreenFoxAuthor Commented:
Thanks for answering!

Yeah i've been looking into those solutions, and even if it is more expensive I think the VMWare fault tolerance is what I need.

But I got a question:

From what i've read I need to install the ESXi into two servers, and then install the vCenter app in another server to create a HA cluster and a shared storage.

What would be the cheapest alternative to this shared storage? Can I use the same vCenter server for this?
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SandeepSr System AdministratorCommented:
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