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    • Oksana

      StarWind Success Story: One SDS to Revamp All AAA-9 Systems
      Starwind • shared storage ha high availability fault tolerance starwind hardware hypervisor • • Oksana

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    • Pete.S

      Windows Server licensing for HA?
      IT Discussion • windows server ha licensing • • Pete.S

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      Obsolesce

      @Pete-S said in Windows Server licensing for HA?:

      If you have two servers and run HA, does that mean that you have to license Windows Server standard for the maximum number of VMs running when you have a failure?

      So for example,
      Server A: 16 cores, runs 6 VMs normally
      Server B: 16 cores, runs 6 VMs normally

      So each server has to be licensed for all 12 VMs running on 16 cores - so 6 x Windows Server Standard licenses for each server, total of 12 licenses?

      But if you didn't run HA, you would only license each server for 6 VMs, with 3 x Windows Server Standard, a total of 6 licenses?

      Is this correct?

      Yup.

      If you're running a HA setup of Server Standard, all physical servers must be licensed for all Windows Server VMs that can run on them. This means each physical server in your HA cluster must be licensed for 12 Windows Server VMs.

      So yes, you are correct in that to license 12 Windows Server VMs on both of your physical servers, you'll need 6x Windows Server Standard licenses for each server, 12 "licenses" total as you said.

    • Emad R

      how do you deal with SPOF with HAproxy
      IT Discussion • spoif haproxy ha • • Emad R

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      dbeato

      We use DNS health checks for this, Route53 and CLoudFlare have this but it comes at a n additional cost.

    • Oksana

      Forget about disasters sabotaging your IT environment with stretched clustering
      Starwind • starwind starwind vsan starwind virtual san ha high availability disaster recovery hyperconverged stretched clusters failover cluster failover-clustering high performance • • Oksana

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    • Oksana

      Microsoft Windows Server 2016 Core: Failover Cluster Role, Step-by-Step
      Starwind • ws2016 windows server 2016 iscsi ha high availability failover-clustering failover cluster starwind starwind vsan virtual san vsan • • Oksana

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    • Oksana

      Getting a grasp of what Always On is and how it works
      Starwind • microsoft sqlserver sql highavailability ha disasterrecovery hadr • • Oksana

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    • NashBrydges

      Nginx Active-Passive HA
      IT Discussion • nginx ha high availability • • NashBrydges

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      JaredBusch

      @nashbrydges said in Nginx Active-Passive HA:

      @jaredbusch said in Nginx Active-Passive HA:

      @NashBrydges side question. If you setup the .well-known to work correctly, why do you then need the HA? because nginx will never be down except for the momentary reload after the certs are updated.

      That certainly addresses the biggest concern about a long downtime during the renewall process for a high number of certs and probably addresses most concerns with this client. He's already running Veeam replication to a second box so his RTO and RPO are relatively short and within his business tolerance.

      Having said that, it's a great learning opportunity for me to set this up in my lab, if for no other reason than to try it and see how it works.

      Certainly no reason not to do it for a lab. and for a proxy with as much as it sounds like you have in production, it will still be a likely good solution.

    • Oksana

      Get a true Hybrid Cloud solution for your existing Hyper-V infrastructure
      Starwind • starwind hybrid cloud starwind starwind tap room hyper-v 5nine azure highly available cluster ha ha cluster cluster replication workload 5nine manager vsan starwind vsan virtual san • • Oksana

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    • Oksana

      Node Majority Strategy – a remedy to the split brain pain
      Starwind • split brain high avail ha starwind blog starwind virtual san starwind heartbeat synchronization node majority quorum witness node • • Oksana

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      DustinB3403

      Good read and it explains very clearly what split-brain is, and how to prevent it in simple enough terms.

      I've had to explain many times myself what split-brain is and ways to prevent it. I just get starred at. . .

    • Oksana

      Choose wisely: SQL Server Failover Cluster Instances vs. Basic Availability Groups
      Starwind • sql server 2016 sql server failover cluster instances fci basic availability groups bags starwind mission-critical database database high availability disaster recovery ha dr • • Oksana

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      dbeato

      @oksana Still backups are needed 🙂

    • Emad R

      KVM Poor Man Replication HA
      IT Discussion • kvm poor ha replication really cheap • • Emad R

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      Emad R

      @mlnews

      Thread resurrected !!!

      I see, interesting . Regarding Ovirt + GLusterFs my update on this is that did learn glustering and it was easy to perform. I didnt apply it in production or VMs. I did use Ovirt a month ago and it was very slow web ui experience.

      I should write a thread about my and Gluster.

    • Oksana

      Increasing IT infrastructure redundancy with vCenter HA
      Starwind • vcenter vcenter high availability high availability ha vsphere 6.5 vmware webin starwind rto • • Oksana

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    • Oksana

      Benchmarking StarWind Highly Available shared storage and local storage performance
      Starwind • starwind vsan virtual san shared storage local storage high availability ha starwind virtual san storage benchmarking storage performance storage • • Oksana

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