StorageSpaceDirect
What is it
Storage Space Direct (S2D)
Imagine you have a few servers in your office.
Each server has its own hard drives or SSDs. Normally, those drives can only be used by that single server.
Storage Spaces Direct (S2D) is a Windows Server feature that lets you combine all those separate drives into one big, shared, and reliable storage system.
It’s like taking the storage from all your servers, putting it together, and making it act like a single, powerful storage box.
If one server or one disk fails, your data stays safe because S2D automatically keeps copies on other servers
Therefore, it is perfect for virtual machines, reducing the SAN Cost
Also, it is fast, reliable, highly available, and easily scalable too.
Prerequisites
- Cluster must be setup.
Setup
Powershell: Enable-ClusterS2D
Enable-ClusterS2D immediately detected all eligible local disks across the cluster. In my lab, that meant all four 50-GB VMware virtual disks (two per node) were listed as not claimed and ready to be used by Storage Spaces Direct.
After confirming the prompt, S2D automatically claimed the disks cluster-wide and created the initial storage pool using all four drives.
Cluster Shared Volume
Source
https://blog.matrixpost.net/mastering-hyper-v-clusters-with-storage-spaces-direct-s2d/