Questions tagged [storage-spaces-direct]

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3 votes
1 answer
151 views

S2D - How to reclaim space?

I have a Windows Server 2016 failover cluster with storage based on S2D (Storage Spaces Direct). I recently noticed that if I delete something (VHDX files of virtual machines) the space of the deleted ...
4 votes
1 answer
119 views

Windows server cluster shared volume (CSV) does not allocate full configured cache size

I have a Windows Server S2D cluster with five nodes. I have configured a 51GB CSV cache. However, after several days the server won't allocate more than about 1.5GB. I briefly saw 1.6GB. Why is ...
2 votes
1 answer
220 views

Storage Spaces Direct CSV vs non-CSV volume performance difference

In a Win2019 S2D deployment having 4 nodes of 4 SSD per node, I create a new NTFS volume and I create a new CSV_NTFS volume. I'm using diskspd to test. I'm running the tests from the node in which I ...
4 votes
1 answer
7k views

How to Remove a Perfectly Good Disk S2D Storage Spaces Direct so it can be used by Operating System?

I'm trying to run a Windows Server 2019 Storage Spaces Direct (S2D) cluster with 4 SSDs and 8 spindles per cluster node. There were 2 additional SSDs (1 of which is used for OS, the other is unused at ...
2 votes
1 answer
625 views

Storage Spaces Direct CSV_REFS latency degraded when diskspd not run on Owner Node, CSV_NTFS good on all nodes

CSV_REFS performs properly when the diskspd test is run on the disk’s Owner Node. Latency increases 35x for 64k blocks when the test is run on any other node in the 4-node cluster. I can switch the ...
3 votes
1 answer
289 views

Managing Storage Spaces Direct in Windows Admin Center

I have a Hyper-V server, also running Windows Admin Center, let's call it FISH. That server is set up as gateway. On it, there are two storage pools, which can be managed via the Server Manager ...
3 votes
1 answer
488 views

S2D cluster not recognizing new phisical drive

I have a cluster of three ProLiant DL380p Gen8 servers with Windows Server 2019 OS. After Predictive failure warning on one of the physical drives, I retired it (Set-PhysicalDisk -Usage Retired) and ...
4 votes
2 answers
174 views

Fixing bad network drivers on 2019 DC S2D installation

I am helping to troubleshoot an existing Windows failover cluster on Windows Server 2019 Data Center. The cluster is set up to use Storage Spaces Direct (http://aka.ms/s2d) but there are problems ...
0 votes
2 answers
4k views

How to find what physical server my physical disk in a S2D windows cluster is attached

I have a mirrored S2D cluster setup, one of my drives has an IO error as evidenced below. How do I find what physical server in the cluster this drive is attached to? I've ran all sorts of commands ...
4 votes
1 answer
2k views

Storage Spaces Direct - how to use newly added disk as local and prevent auto pooling / auto-select?

Environment: Windows 2016 FCI cluster with S2D running SQL Server cluster on 2 VMs in Azure. New vhd disk has been added to a single VM in the cluster with intention to use it as local. Because '...
3 votes
1 answer
356 views

Storage spaces direct only using 32gb for each cache device, is this normal?

I have two cache devices and 4 storage devices in two machines that are being mirrored. I ran some powershell to disable clustered storage (s2d) and in disk management I'm left with disks that are ...
3 votes
1 answer
255 views

IneligibleDataPartition - S2D not starting - error 2

Getting this report but can't find any usefull info how to bind these disk back together: Get-Cachediskstatus.ps1 ---------------------------------------- Node: NAS13 DiskState DiskName ...
3 votes
0 answers
187 views

Azure Failover Cluster Backup

We have configured a failover cluster instance in Azure (iaas), and we are running SQL 2016, and we have a backup directory presented as a csv (which is a mountpoint on the c: drive, under c:\...
2 votes
1 answer
124 views

Wizard for New Volume from Cluster Pool shows 0.00 GB free (despite 1.50 TB in Server Manager)

So an issue I am running into is that I have a Storage Pool using S2D created, it shows less than 2 GB used up... but when I go to run the virtual disk wizard, it has Free Space: 0.00 GB for both ...
5 votes
2 answers
2k views

Hardware involved in Direct-connect (switchless) 2-node Storage Spaces Direct Cluster

For my department, I envision a two-node cluster of identical machines, running S2D. I want to use Broadcom 57416 10GBASE-T Adapters (example description), because they support RDMA and run at the ...
6 votes
2 answers
1k views

What would be the benefit of configuring SOFS with S2D on Server 2016?

Let's say I have 4 servers in a "storage cluster", each of them has access to a JBOD of 24 hard drives. Then I have another 16 servers in a "VM cluster", running Hyper-V, each of them only has a boot ...
7 votes
2 answers
376 views

Default behavior of Storage Spaces Direct results in what capacity?

I have read the Drive Symmetry Considerations and the Deploy Storage Spaces Direct articles and I'm lookup to understand the default behavior of the Enable-ClusterStorageSpacesDirect command as it ...
0 votes
0 answers
2k views

Unable to add Disk or FileShare Quorum Witness to Mirrored Storage Spaces Direct Cluster

So as the title states I am unable to add a Quorum Witness to my cluster with the two options that do not involve azure. I've tried several different commands for the disk witness as you can see it ...
6 votes
3 answers
2k views

Cluster Fails when Enabling Storage Spaces Direct Server 2016

I'm trying to get a 2 Node Hyper-converged Fail-over cluster setup with 2016 Server and Storage Spaces Direct. I am able to Validate (with no errors) and Create the Cluster with the S2D tests ...
2 votes
1 answer
1k views

CSV becomes unavailable after planned node shutdown

We run a 3-node hyperconverged storage spaces direct cluster with 3-way mirror resiliency. When one node is put into maintenance mode, everthing is still working fine (no errors or inaccessible ...
3 votes
2 answers
5k views

S2D warning: No disks found to be used for cache

I have a Storage Cluster consisting of 2 Windows Server 2016 Datacenter configured with a storage pool with 3 virtual disks consisting of the following physical disk. MediaType : HDD FriendlyName ...
4 votes
2 answers
196 views

Is it possible to use several disks in the pool and some disks as local disks?

I have 4-node S2D cluster with 12 disks each on Windows Server 2016 Insider Preview 16257. I applied this settings by Cosmos Darwin to prevent adding new disks to the pool automatically Is there any ...
1 vote
1 answer
359 views

Software-defined Storage: does spindle count matter, generally-speaking?

I'm looking into HCI solutions, most of which appear to be built around RAIN (Redundant Array of Independent Nodes), caching or tiering of "hot" and "cold" data in the form of fast, expensive cache ...