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How to setup High Availability in Hyper-V with our P4300 SAN RRS feed

  • Question

  • We just setup our C3000 enclosure and our P4300 SAN. I've never worked with blades nor SANs before. We already had HP remote in and show me the basics. But I'm having trouble grasping how high availability in Hyper-V works since the HP guy was not a hyper-v specialist. Can anyone point me to a white paper or how-to document that shows how high availability works in Hyper-v and also a step by step of how to set it up?

    Thanks

    Friday, July 20, 2012 8:23 PM

Answers

All replies

  • Assuming you've already created a Hyper-V cluster, created and configured a CSV and just want to enable HA for a particular VM:

    http://technet.microsoft.com/en-us/library/cc753787

    Hope this helped :)

    -nismo

    • Proposed as answer by VR38DETTMVP Friday, July 20, 2012 8:30 PM
    Friday, July 20, 2012 8:30 PM
  • Assuming you've already created a Hyper-V cluster, created and configured a CSV and just want to enable HA for a particular VM:

    http://technet.microsoft.com/en-us/library/cc753787

    Hope this helped :)

    -nismo

    We have not created a cluster. Right now we have our hyper-V VM's running on DL380 hosts. Those servers currently house the VHD files. Our SAN and blades are up and have IP addresses and an initial configuration. Right now I'm trying to figure out how Hyper-V high availability works and how to configure a SAN to support it.

    Suppose I have only 2 blades in the enclosure and both are hyper-v hosts. Each host maps to it's dedicated "chunk" of space in the SAN via iSCSI initiator. What exactly is happening when high availability is configured? Is the SAN just replicating VHD files from one dedicated chunk of space to another? or is there some sort of virtual link that tells a hyper-v hosts how to connect to another chunk in order to bring up a virtual machine that's gone down on another host?

    Friday, July 20, 2012 9:21 PM
  • Assuming you've already created a Hyper-V cluster, created and configured a CSV and just want to enable HA for a particular VM:

    http://technet.microsoft.com/en-us/library/cc753787

    Hope this helped :)

    -nismo

    We have not created a cluster. Right now we have our hyper-V VM's running on DL380 hosts. Those servers currently house the VHD files. Our SAN and blades are up and have IP addresses and an initial configuration. Right now I'm trying to figure out how Hyper-V high availability works and how to configure a SAN to support it.

    Suppose I have only 2 blades in the enclosure and both are hyper-v hosts. Each host maps to it's dedicated "chunk" of space in the SAN via iSCSI initiator. What exactly is happening when high availability is configured? Is the SAN just replicating VHD files from one dedicated chunk of space to another? or is there some sort of virtual link that tells a hyper-v hosts how to connect to another chunk in order to bring up a virtual machine that's gone down on another host?

    You don't use DAS on your Hyper-V blades in such a case. All VHDs should be hosted on CSV exported by SAN. If you want to continue using DAS and make nodes mirror data between them then you don't need a SAN. You need something like StarWind Native SAN or DataCore SANmelody. From your original question I though you're intended to continue with your setup AS IS.

    -nismo

    Friday, July 20, 2012 11:43 PM
  • http://download.microsoft.com/download/b/1/0/b106fc39-936c-4857-a6ea-3fb9d1f37063/Step-by-Step%20Guide%20for%20Configuring%20a%20Two-Node%20File%20Server%20Failover%20Cluster%20in%20Windows%20Server%202008.doc provides a step-by-step on creating a file server failover.  It's basically the same, except instead of creating a file share at the end, you create the CSV and VMs.

    And http://www.microsoft.com/en-us/download/details.aspx?id=12648 contains another step-by-step for Hyper-V clusters.

    http://technet.microsoft.com/en-us/library/gg232621(v=ws.10).aspx has a section about setting up the iSCSI initiator.  It has a section on the target, too, but it is for the Microsoft iSCSI target, and if your SAN vendor provides iSCSI, follow thir instructions for that.


    tim

    Saturday, July 21, 2012 2:19 PM
  • Hello ,

    This depends on what equipments has your c3000 enclosure. Do you have Virtual Connect SAN Modules and Ethernet modules like Flex10, and what version do you have Blade Server?

    http://sdrv.ms/QknVXF

    These documents can give you an idea.

    Sincerely,

    Murat Demirkiran


    If the post helps you and remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. www.scvmm2012.com (TR Language) Please note that I'm not a Microsoft Representative or SpokesPerson.

    Saturday, July 21, 2012 2:36 PM