Redundant NAS

Posted on 2012-09-02
Last Modified: 2012-09-02
I am quoting on a system which needs fail over in case of hardware failure. I plan to have two physical servers and two NAS.
My idea is to run hyper-v clustering between the two servers with the VM stored on one of the NAS.
The question is,
1- how can I do real time replication of the VMs on the live NAS to the second NAS.
2 - is there then a way to automatically switch to the second NAS should the first fail.

or is there a better way.
Question by:ficose
    LVL 95

    Accepted Solution

    Depends... are you spending 6 figures on the NAS or 3 figures?  Enterprise Class NAS devices may have capabilities you are looking... the cheap ones you buy from Newegg almost certainly do not.  Frankly, you're approaching this from the wrong point of view.  You don't want NAS, you want SAN.  And then you want a clustered SAN for redundant storage.  And ideally, they should be in different buildings if not entirely different geographic regions.  

    OR, you could just use Hyper-V Replication in Server 2012.  It's NOT REAL TIME, but it's close, allowing recovery to within 5 minutes of the failure.  Otherwise, there are "real-time" solutions out there... but they are expensive... so you need to know exactly what downtime costs you.
    LVL 116

    Assisted Solution

    by:Andrew Hancock (VMware vExpert / EE MVE)
    You could use Veeam Backup and Replication for Hyper V or the new replication features in Windows 2012. (Hyper-V 3.0)

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