Storage Spaces is a Windows feature that allows one to group various physical drives into one logical drive.

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Calculate usable storage space with different size drives in Windows Storage Spaces?

I'd like to create a parity storage space in Windows 10 with a 5 tb disk and two 3 tb disks. Is there a way to calculate how much usable space this will give me?
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Windows Server Storage Spaces tier write-back cache, how to configure threshold that determines if write is performed on write-back cache?

The Storage Spaces feature included with Windows Server 2012 and the upcoming Windows Server 2016 consists of a virtual disk. In a tiered storage deployment a write-back cache is created (the default ...
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Could not create tiered storage on Windows 2012 R2

I am trying to create tiered storage on single HDD and SSD. It is created successfully via powershell and gui, but when I try to use Set-FileStorageTier commandlet it shows: Set-FileStorageTier -...
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34 views

Downgrade Windows storage spaces pool from Windows 10 to Windows 8.1

I have a storage spaces pool that was originally on Windows 8.1. When I moved the pool to a Windows 10 system, I unfortunately upgraded the storage spaces pool to the newer 'Windows 10 version'. So ...
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45 views

Win10 Storage Spaces - Missing capacity?

I'm confused. I have a "parity" Storage Space consisting of 4 x 3 TB drives in my Win10 file server (I think "parity" is roughly equivalent to RAID5). This should give me roughly 9 TB of usable ...
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33 views

Microsoft Storage Spaces as MAC OS X time machine destination

I have several MacBooks at home. And I want to build home backup solution based on Microsoft's Storage Spaces ( Windows 10 Pro). It would utilize ReFS and "three way mirror". I guess, it is hardware ...
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13 views

Using storage spaces like raid 0 + mirroring?

I have a few drives I'd like to use but I'd get more space out of them if (this assumes its possible) I could set the two smaller drives up like raid zero, then have the "raid 0 drive" mirror a x3 ...
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62 views

ReFS combination with storage spaces and TrueCrypt

I would like to store data encrypted and reliable (no bit rot, mirror). Already did some testing but I am not sure at some points. For all cases: I set up a windows storage space with 2 drives (...
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32 views

What external drives work with Windows 10 Storage Spaces?

What external drives work with Windows 10 Storage Spaces? I'd like to set up a mirror with two external 4 TB WD drives, but I can't tell if they're compatible with Windows 10 Storage Spaces. Is there ...
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106 views

Problems with Storage Spaces feature in Windows 10

I have a computer with one system disk (running Windows 10) and six data disks. I have created a Storage Space using the six data disks. However, it seems that not one but two disks are used as fault ...
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62 views

Connecting a USB Flash Drive to Storage Spaces

I have been playing around with Storage Spaces for a while now, originally in Win 8.1 and now 10, and have found the technology to be so useful. I have recently come into possession of 10 64GB USB 3....
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83 views

Storage Spaces marks all disks as failed after 30 minutes of copying files

I have an Intel NUC with Windows 10 64bits, I connected with USB3.0 (UASP) an 8-bay HDD enclosure that contains 2 new HDD WD Red 6Tb, and 1 old HDD WD Green 2Tb (99% full but healthy, formatted with ...
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61 views

Windows Drive Name After Z? [duplicate]

I was wondering what will be the drive name used after Z:? I am planning to mount few virtual drives on my Windows machine and also have a plan to create few drives out of my existing 2TB HDD. My ...
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104 views

Does Tiered Storage in Microsoft Windows Server 2012 work with Microsoft Software ISCSI Target

I am trying to build a storage machine for my home network, but I’m running into an issue with understanding how certain things work behind the scenes. I am hoping to set up a tiered storage system ...
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144 views

How do I format a single raid 5 hard drive?

I'd like to know how to format a single former raid 5 hard drive If I boot up without the other raid 5 drives then Windows doesn't see it; it doesn't appear in Disk Management, or whilst booted into ...
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52 views

Storage Spaces unusable read speed

I've created a Storage Space with parity using 10 2TB disks and transferred 10TB onto it. However I am getting appalling read speeds. When I try and copy data off it, it takes ages to get going (...
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24 views

Windows 8.1 Storage Spaces Pool deletion

I am trying to delete my raid 0 storage pool and it seems that maybe the storage spaces utility doesn't recognize the pool being there. According to these screenshots (and others I have found that are ...
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142 views

Corrupted Data after replacing disk in Windows 10 Storage Space

I have a Windows 10 upgraded Storage Pool with 5 drives (Parity, thinly provisioned). 'Upgraded' means that this Storage Space supports rebalancing/optimizing (and this was a Windows 8 machine before)...
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82 views

Create Windows 10 storage spaces when one disk already has data on it

While still on Windows 7 over a year ago I used a built in software mirror until I had some hardware freezing problems and this forced slow and painful resync. I decided to move back to manual backups ...
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Windows Storage Spaces - Stripe and mirror array on same disks?

Is it possible to take use two disks in a pool, create a stripe array in the outer sectors and a mirror array in the inner sectors? If so, how can this be accomplished?
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1k views

Windows 10 Storage Spaces Poor Speed

Using Storage Spaces under Windows 10 Pro, I am observing poor, nonsensical speed. A two-way mirror and a simple space across four drives on 2012R2 and 2016TP produce completely different performance ...
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201 views

Hard drive requirments for a home NAS Streaming (Plex) server

I plan to build this server to store my Blu-Ray rips, personal photos and music. My original plan was to install Ubuntu but now I plan to run Windows Server 2012 R2 - Datacenter, I get it for free as ...
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408 views

Storage Spaces - removal of disk in Simple array

I have a simple array set up in Storage Spaces that consists of 5 hard drives: four are 3TB and one is 2TB. I want to replace that 2TB with a larger drive, but it has 40.1 % of the disk being used (...
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137 views

Why is the total file and folder sizes in drive C: different from the folder size in Properties?

I have two different reports on the size of C: on Windows Server 2008 R2, by clicking the properties of C:, it shows 86.0 GB for "used space"; by selecting all contents (I have setup to view all ...
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349 views

Retiring disk in Simple Storage Space (Windows 10)

I'm banging my head against the wall trying to work something out with Windows Storage Spaces (WSS). Here's what I'm up against: I have 2 250GB drives in RAID1 (OS Drive), 2 3TB drives and 12 1TB ...
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How can I recover files from a “removed” storage space drive

Quick Statement: I need to recover data from a 4TB Storage Space drive that was "removed" from the array but hasn't been touched since. Details: I'm in real trouble here. I have a large Windows 8.1 ...
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Windows Storage Spaces Drive Portability when moved to another Port / Enclosure / Machine

There seem to be several related questions all of which are unanswered still. So I thought to combine them into one and elaborate a bit. Considering a simple Storage Space consisting of 2 identical ...
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In Windows 10 Pro Storage Space, why can't I use ReFS with Parity?

NTFS is the only option when Parity is selected as the resiliency type. I thought ReFS was suppose to replace NTFS? I am trying to create a storage space to use for network file share.
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Disk size varies - MooseFs

I have 4 moosefs chunkservers with 8 2.7 TB storage on each, I mount them using mfsmount and then export with nfs. Recently I noticed high iowait on my chunkservers, then huge mount size drops, see ...
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379 views

Reclaiming formerly used space in Storage Spaces

I have a large, mirrored, thinly provisioned space spread across multiple hard drives using Windows Storage Spaces in Windows 10 Pro. The space is about 4TB (8TB with resiliency). I have recently ...
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123 views

Storage Spaces Utilization Doesn't Make Sense

Here's my setup: Windows 10 1 2TB USB3 drive 1 3TB USB3 drive 3.59 TB Two way mirror storage space built from these drives Previously I had 2x 2TB drives, but one failed, so the replacement is ...
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80 views

Can Storage Spaces drives be moved to a SAS controller without data loss?

I have an old file server with some 20 SATA drives attached to both mainboard and external controller cards. The machine is running Windows Server 2012 R2 and using Storage Spaces to pool the drives. ...
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Add up multiple disks into single storage, replace disk without destroying data

Suppose I have a 1TB disk and a 2TB disk. If I want to use it as a single 3TB disk, there seems to be two solutions on Windows 8. Dynamic Disk in Disk Management Storage Spaces, Simple layout But ...
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287 views

One big storage pool vs. several smaller ones

I'm building a home server with Windows Server 2012 R2 and am planning to utilise the Storage Spaces feature. I have 4 hard drives (4 TB WD Reds) that will be holding a variety of data - media files, ...
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187 views

Changing Connectivity of Windows Storage Spaces Drives

I plan to have 2 identical SATA drives attached via SATA configured in a 2-way mirror Windows storage space created in Windows 8.1 or later. If I were to unplug those drives later, put them in a ...
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499 views

Software/Hardware RAID vs Windows Storage Spaces for DAS

I plan to upgrade my Intel RST Software RAID1 setup with 2 internal SATA drives to something more versatile: Drives need to be external (they have to reside in an enclosure connected to PC via eSATA ...
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Creating a large windows file system [closed]

I need to create a large windows file system - around the 500TB - 1000TB size. Primary use is for archival storage, performance is not a major design factor. We are a very small admin team so ...
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143 views

Will TrueCrypt affect my ability to restore my Storage Spaces drive pool?

I have 2x1TB set up in a two-way mirror with Storage Spaces. I'm going to reformat Windows, do I need to prepare anything to make them show up in the fresh install? Using Windows 8.1 and TrueCrypt 7....
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283 views

Remove a drive from Windows Storage Pool without losing data

I have a Windows Storage Pool with a 3TB drive and a 1.5TB drive. I want to move all the data from the 1.5TB drive to the (45% full) 3TB drive and then remove the 1.5TB drive. Is there any way to do ...
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699 views

Misleading “Couldn't mount file” message after successful mounting of removable Virtual Hard Disk that is part of Storage pool

I use two-way mirror feature of Windows 8 to regularly and transparently backup my important disks on USB drive. Size of my USB drive is much higher than size of disk to backup, so allocating whole ...
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40 views

What will happen if I reconnect 2 halves of two-way RAID mirror after using them independently?

Suppose I have a storage space with two-way mirror based on 2 physical USB drives a and b. Then I disconnect b and connect it to another computer. Then I use—write some data—to both degraded storage ...
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372 views

Green or Red hard drive for a SOHO NAS running Windows 8.1 Pro Storage Space? [closed]

I have been using Green HDDs (e.g. Western Digital Green) since the Windows Home Server days without any issues. Now that I have migrated to Windows 8.1 with Storage Space, I would like to know if ...
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Is it possible to access Storage Spaces from Windows 8.1 instance running under VMware Workstation?

I have a single Storage Space (2-way mirror) under Windows 8.1. The disks are in an external eSATA enclosure. It's mounted as a single drive. I'd like to access the data on the Storage Space from ...
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187 views

How do I merge two unallocated, non-sequential partitions on the same logical disk?

I'm wondering if I could merge two unallocated spaces as shown in the picture below: I would like to combine the two unallocated spaces into a single space for further partitioning.
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433 views

How to get serial number of drive in storage pool

I have a storage pool in windows 8.1 and notice that whenever I boot the computer, it hangs for a long time in the detecting IDE drives during post. When it finally gets into windows, it shows one of ...
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291 views

ATTO benchmark read speed slow below 4MB transfer size on 2-way mirror

I've set up two Toshiba DT01ACA300 HDDs in Windows 8.1 Storage Spaces as a 2-way mirror formatted as a NTFS volume. Benchmarking with ATTO shows this (volume is only a quarter full of data) Click ...
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Storage Space Error Inaccessible; Reconnect Drives

The storage spaces section in control panel lists "Error Inaccessible; reconnect drives", however each of the physical drives reports a status of "OK": Can someone please help me restore the ...
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Rebalance hard drives in a Storage Space Pool?

I have 2x 1.5TB drives in a (two-way mirror storage pool). That pool recently hit 100% capacity meaning both drives had 0% space left. I added 2x 4TB drives to the storage pool but Storage space ...
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679 views

How to recover a Win8 Storage Pool that had it's partitions deleted

I have (or had) a 4TB storage pool that I had created using 2x 500GB drives with 2-way mirroring. Everything was working fine until I made a very dumb mistake. I was following some steps for something ...
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282 views

How does performance scale in a single column 2-way mirrored storage space as more disks are added?

In Windows 8.1 Storage Spaces, there seems to be pretty solid evidence that 2-way mirrored storage spaces have performance that improves significantly as more disks are added to the pool as long as ...