Comments on: How to Customize Site-Aware Clusters and Fault Domains https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/ Hyper-V guides, how-tos, tips, and expert advice for system admins and IT professionals Wed, 31 Mar 2021 06:24:16 +0000 hourly 1 By: Minta Manjarres https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/#comment-3373 Sun, 20 Oct 2019 03:53:00 +0000 https://www.altaro.com/hyper-v/?p=18067#comment-3373 An impressive share! I’ve just forwarded this onto a colleague who has been conducting a little research on this. And he in fact bought me dinner because I discovered it for him… lol. So allow me to reword this…. Thanks for the meal!! But yeah, thanks for spending some time to discuss this matter here on your web site.|

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By: Symon Perriman https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/#comment-3359 Tue, 08 Oct 2019 06:39:00 +0000 https://www.altaro.com/hyper-v/?p=18067#comment-3359 In reply to Patrick Walch.

Hi Patrick,
This is possible, but requires some manual configuration, so it is not ideal. The guidance is as follows: If your S2D cluster is already running and you are configuring fault domains later, you must manually move your nodes into the correct fault domains, first evicting the node from your cluster and its drive from your storage pool using the cmdlet: PS C:> Remove-ClusterNode -CleanUpDisks

More info on this cmdlet is here: https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/remove-servers

Thanks,
Symon

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By: Patrick Walch https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/#comment-3358 Mon, 07 Oct 2019 15:42:00 +0000 https://www.altaro.com/hyper-v/?p=18067#comment-3358 In reply to Symon Perriman.

Sorry, question was. Can Fault Domain be setup after the fact? If so what are the steps.

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By: Symon Perriman https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/#comment-3340 Sat, 28 Sep 2019 14:49:00 +0000 https://www.altaro.com/hyper-v/?p=18067#comment-3340 In reply to Patrick Walch.

Hi Patrick,
Microsoft supports S2D fault domains in Windows Server 2016 and 2019, so this configuration should work. Make sure that you run cluster validation on the entire solution.

Per Microsoft Documentation:
Specify fault domains before enabling Storage Spaces Direct, if possible. This enables the automatic configuration to prepare the pool, tiers, and settings like resiliency and column count, for chassis or rack fault tolerance. Once the pool and volumes have been created, data will not retroactively move in response to changes to the fault domain topology. To move nodes between chassis or racks after enabling Storage Spaces Direct, you should first evict the node and its drives from the pool using Remove-ClusterNode -CleanUpDisks.
Source: https://docs.microsoft.com/en-us/windows-server/failover-clustering/fault-domains

Thanks,
Symon

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By: Patrick Walch https://www.altaro.com/hyper-v/site-aware-clusters-fault-domains-windows-server-2019/#comment-3337 Thu, 26 Sep 2019 13:02:00 +0000 https://www.altaro.com/hyper-v/?p=18067#comment-3337 Symon, is it possible to apply fault domain on existing 2016 12 node HCI S2D Cluster? All CSV’s are 3way mirror, 3 Racks, 4 nodes each?

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