Can two Hyper-V servers share a single ISCSI device?

I have two dell servers with Hyper-V installed(the free version).  I want both of them connected to one ISCSI storage device for redundency.  Each server can see the 500g ISCSI disk in disk manager but when writing data to it from each server, they don't show the same files.  It's as if each server only sees data it writes to the storage device, not data written from the other server.  Is this a limitation of hyper-v/NTFS?  Is this where VMFS is better?
YonoldieAsked:
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jakethecatukConnect With a Mentor Commented:
Two HYPER-V servers can see the same iSCSI storage device, but you will need to do either: -

1. Split the iSCSI storage into two logical units (LUNS) and allocate one LUN to each server
2. Configure HYPER-V with failover clustering and they will both see the same data but only one will be able to write to it at a time.

Are you looking for a more high availability solution so that if one server fails, the other server will start up the failed virtual machines?
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msmamjiCommented:
what kind of data do you intend to put on the iSCSI storage?
What version of the Hyper V Server are you running (R1 / R2)?

Just to get you started Here are FAQ for both.

Hyper V Server 2008 R2 FAQ
http://www.microsoft.com/hyper-v-server/en/us/faq.aspx

Hyper V Server 2008 FAQ
http://www.microsoft.com/hyper-v-server/en/us/2008-faq.aspx

Regards,
Shahid
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YonoldieAuthor Commented:
Yes, we purchased VMM(virtual machine manager) but it hasn't arrived yet.  Option 2 is what we are trying to do.  

Once the VMM gets installed we will add each physical server as a managed node.  At this point, we can configure failover clustering to accomplish option 2?
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YonoldieAuthor Commented:
Was tying my response and missed your post msmamji, sorry about that.

It's R2.  We want to store vhd files.
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jakethecatukCommented:
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jakethecatukCommented:
and this is the one on how to do it (not much point me writing down the steps when someone else has done it)

http://technet.microsoft.com/en-us/library/cc732181(WS.10).aspx
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msmamjiConnect With a Mentor Commented:
Hyper V R2 supports live migration and CSV.  
go to savilltech.com and explore the videos for Windows Server 2008 R2, they will get you up to speed on the how to cluster the hyper-V and configure CSVs and use live migration.

Coming back to your original question, you can take a look at immediately at
http://www.savilltech.com/Videos/CSVDeepDive/CSVDeepDive.wmv
http://www.savilltech.com/Videos/Clustering_in_a_virtual_world/Clustering_in_a_virtual_world.wmv

Hope that helps.
Regards,
Shahid
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YonoldieAuthor Commented:
very helpful links!!!
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