How to configure a Multi-Resilient Volume on Windows Server 2016 using Storage Spaces

Posted by Vitalii Feshchenko on October 24, 2017
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Plenty of articles have been released about Storage Spaces and everything around this topic. However, I would like to absorb all actual information and lead you through the journey of configuring Storage Spaces on a Standalone host.

The main goal of the article is to show a Multi-Resilient Volume configuration process.

How it works

In order to use Storage Spaces, we need to have faster (NVMe, SSD) and slower (HDD) devices.

So, we have a set of NVMe devices along with SAS HDD or SATA HDD, and we should create performance and capacity tier respectively.

NVMe tier is used for caching. When hot blocks are written to the storage array, they are written to the caching tier first (SSD’s or NVMe):

Data in Performance Tier

When some blocks become cold, they are automatically moved to the slower storage, HDD in our case:

Cold data is moved to Capacity Tier

Thus, you can manage storage which is as fast as SSD and costs less.

Cost-to-performance ratio is the main point to use Multi-Resilient Tier.

ReFS (The Resilient File System) is a new recommended file system for using S2D. It is able to move data between faster and slower tiers automatically. However, NTFS also supports building Multi-Resilient Tier.

When you use Multi-Resilient Tier, you don’t need to create a hardware RAID array, since pools are created by Storage Spaces itself.

Instead of RAIDs, there are three resiliency options available for storage configuration: Mirror, Parity, and Simple.


Under this configuration, you have multiple copies of data. It looks and operates like RAID1.

Copies are written to different physical drives in order to provide independence.


It is implemented as RAID5. It saves one bitwise parity symbol. Also, Parity provides better storage efficiency than Mirroring, but fault tolerance is lower.


Simple was created as RAID0. It provides better performance and best storage efficiency.

However, I do not recommend using it since when one drive fails, all data gets corrupted. It is good only for temporary environments.

So, you may use Multi-Resilient Tier for a Standalone host or for several hosts (Storage Space Direct).

Today, we are going to browse through the Standalone host configuration since we can combine this technology with StarWind solution and get a great result.

Create a multi-resilient volume

There are two ways to configure Storage Spaces. It could be done via Server Manager or via PowerShell console.

Storage Pools

A collection of physical disks that enables you to aggregate disks, expand capacity in a flexible manner, and delegate administration.

Storage Spaces

Virtual disks created from free space in a storage pool. Storage spaces have such attributes as resiliency level, storage tiers, fixed provisioning, and precise administrative control.

PowerShell guide:

Let’s check all available disks for Storage pool

Get-PhysicalDisk – list physical disks

Get-StorageSubsystem – check the storage subsystem name

In case if Media Type of the physical disk is unknown, it can be changed with the PowerShell commands:


In the next step, we will create a storage pool which will use all available disks.

PowerShell commands for Storage Pool and Virtual Disk creation:



The following example shows how to create a Multi-Resilient volume where SSD tier is mirrored and HDD tier is configured in Parity.

This configuration will give you better storage efficiency, leaving the performance on the great level.

I’m not going to cover the GUI configuration in this article. It will be available on StarWind web site soon.


When Microsoft released Storage Spaces, it gave us more flexible opportunities to build the virtual storage. In this blog post, I have covered PowerShell step-by-step configuration. In addition, I showed an example of configuring Mirror+Parity Storage Spaces pool.This technology is compatible with StarWind solution as well. I will describe it in the next blog post.

Related materials:

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Vitalii Feshchenko
Vitalii Feshchenko
Vitalii is a Post-Sales Support Engineer at StarWind about 2 years. Has a broad knowledge of storage, virtualization, backup, and infrastructure implementation. Ping pong as a hobby.