HyperConvergence

Support two failures in 2-node S2D cluster with nested resiliency

Microsoft just released Windows Server 2019 with a lot of improvement for Storage Spaces Direct. One of these improvements is the nested resiliency that is specific for 2-node S2D cluster. Thanks to this feature, a 2-node S2D cluster can now support two failures, at the cost of storage dedicated for resiliency. Nested Resiliency comes in two flavors: Nested two-Way mirroring: ...

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Monitor and troubleshoot VMware vSAN performance issue

When you deploy VMware vSAN in the vSphere environment, the solution comes from several tools to monitor, find performance bottleneck and to troubleshoot VMware vSAN issue. All the information that I’ll introduce you in this topic are built-in to vCenter. Unfortunately, all vSAN configuration, metrics and alerts are not available yet from HTML5 board. So the screenshots were taken from ...

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Use Honolulu to manage your Microsoft hyperconverged cluster

Few months ago, I have written a topic about the next gen Microsoft management tool called Honolulu project. Honolulu provides management for standalone Windows Server, failover clustering and hyperconverged. Currently hyperconverged management works only on Windows Server Semi-Annual Channel (SAC) versions (I cross finger for Honolulu support on Windows Server LTSC). I have upgraded my lab to latest technical preview ...

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Storage Spaces Direct dashboard

Today I release a special Christmas gift for you. For some time, I’m writing a PowerShell script to generate a Storage Spaces Direct dashboard. This dashboard enables you to validate each important setting for a S2D cluster. I decided to write this PowerShell script to avoid to run hundred of PowerShell cmdlet and check manually returned value. With this dashboard, ...

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Dell R730XD bluescreen with S130 adapter and S2D

This week I worked for a customer which had issue with his Storage Spaces Direct cluster (S2D). When he restarted a node, Windows Server didn’t start and a bluescreen appeared. It is because the operating system disks were plugged on S130 while Storage Spaces Direct devices were connected to HBA330mini. It is an unsupported configuration especially with Dell R730XD. In ...

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Storage Spaces Direct: plan the storage for hyperconverged

When a customer calls me to design or validate the hardware configuration for hyperconverged infrastructure with Storage Spaces Direct, there is often a misunderstanding about the remaining useable capacity, the required cache capacity and ratio, and the different mode of resilience. With this topic, I’ll try to help you to plan the storage for hyperconverged and to clarify some points. ...

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Upgrade VMware vSAN to 6.6

Yesterday VMware released vSAN 6.6. vSAN 6.6 brings a lot of new features and improvements such as encryption, increase of performance and simplified management. You can get the release notes here. Currently my lab is running on vSAN 6.5 and I have decided to upgrade to vSAN 6.6. In this topic I’ll show you how to upgrade VMware vSAN from 6.5 ...

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Deploy a 2-node vSAN cluster

A 2-node hyperconverged cluster is useful in branch office where you need high availability or for small infrastructure. With 2-node hyperconverged solution, you don’t need to leverage a NAS or a SAN for the shared storage. So, the hardware footprint is reduced and the manageability is improved because hyperconverged solution are easier to use than standard infrastructure with SAN. VMware ...

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2-node hyperconverged cluster with Windows Server 2016

Last week, Microsoft announced the final release of Windows Server 2016 (the bits can be downloaded here). In addition, Microsoft has announced that Windows Server 2016 supports now a 2-node hyperconverged cluster configuration. I can now publish the setup of my lab configuration which is almost a production platform. Only SSD are not enterprise grade and one Xeon is missing per ...

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