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AlexNovikov

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VMWare Fault Tolerant VMs and StarWind VSAN

Hello,

I'm trying to build a 2 node VMWare cluster with StarWind VSAN to support Fault Tolerant VMs. Has anybody had any success with this? We need virtual machines to  remain on-line during fail-over ( no restart).  The Vsphere Fault Tolerance provides this functionality, but only on hardware SAN . Their VSAN does not support FT ( according to their support) , plus it requires minimum 3 nodes. I'm wondering if somebody has tried StarWind VSAN to provide real Fault Tolerance ( not High Availability, when VM restarts during fail-over)
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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Have you considered using Failover Clustering instead of VMware FT, do you have a VMware vSphere license for VMware FT ?
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AlexNovikov

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I tried 2 node Windows 2012R2 Hyper-V Cluster. Unfortunately  during unexpected fail-over (host shutdown) VMs restart on backup node. This takes more than a minute of downtime. The applications that we run on VMs  are not cluster-aware. We decided to try VMWare vSpere FT as they advertise seamless failover, via replicating memory state between hosts. There are some limitations, like max 4 Virtual CPUs , etc. We dont have license yet but consider to buy vSpere Enterprise Plus if FT works on StarWind SAN. We dont have budget for hardware SAN.
Thank you
I was actually referring to Microsoft Failover Clustering of VMs, not Hyper-V.

but if you apps are not Cluster Aware, you want to look at Double Take HA! (seamless!)

http://www.visionsolutions.com/

as for your issue with Starwind vSAN it does not support FT.
Thank you, I meant Microsoft Fail-over VM Cluster . In my tests I manually moved VM s from one host to another without any interruption services on these VMs. However if I shut down one host, the VM restore on secondary would start from fresh boot.  I looked at Double Take HA videos and white papers, looks like their   solution has also  a delay during unexpected shut down of one host . It seems that only application HA does not require VM reboot...  Looks like VMWare FT is the only solution... I may need to start looking for cheap SAN/NAS
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Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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