Questions tagged [cluster-shared-volumes]

Cluster Shared Volumes (CSV) is a feature in Windows Server in which shared disks are concurrently accessible to all nodes within a failover cluster. The feature was first introduced in Windows Server 2008 R2 as a way to simplify storage with clustered Hyper-V virtual machines (VMs).

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Restrict WFCS Cluster Shared Resource to certain nodes

I have 2 CSV resources on a single WFCS cluster that spans to both Primary and DR data centers. The CSV is getting shared with all the nodes in the cluster. Ideally, I want the Primary CSV should be ...
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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 ...
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Poor Cluster Shared Volume performance when node is not CSV owner

We have a 5 node Windows Server 2016 Failover Cluster setup using an HPE Nimble as shared storage. We're using the cluster for Hyper-V. All virtual machine VHDXs are stored on the cluster shared ...
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What is the bottleneck of my HP MSA? Is it intended for a CSV at all?

I am an apprentice at a company in Switzerland. We have a testing / learning environment for us, which consists of multiple physical servers. There are two physical Microsoft Hyper-V servers that are ...
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I need to replace servers in windows 2016 cluster. Can I add the 2019 servers to the cluster and remove the old ones?

As the subject says, I need to replace servers in a Windows 2016 cluster that uses an iSCSI SAN as shared storage. Can I just add the new servers to the cluster, after installing the iSCSI drivers, ...
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How to enable read permission on Kubernetes mount path

I have installed FluentD on Kind-Kubernetes cluster on CentOS VM running on my laptop. I'm having issues getting FluentD to read logs as it is throwing the following error. 2021-08-29 08:26:31 +0000 [...
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Failed to map guest I/O buffer for write access with status 0xC0000044 Hyper-V-StorageVSP Event ID 8

Full Error information: Error 8/9/2021 10:35:11 AM Hyper-V-StorageVSP 8 None Failed to map guest I/O buffer for write access with status 0xC0000044. Device name = d:\vms\servername\virtual ...
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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 ...
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Two Way Volume Shadow Copy Service

Can one use Windows Server VSS in a two-way configuration? VSS from Volume A to Volume B is a "normal" mode of operation. But, can one do, at the same time, VSS from Volume B to Volume A? ...
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Windows Clustered Shared Volume IOPS

Quick question. I'm reviewing the IOPS for my CSV, and im confused about the Cluster CSVFS\Reads/sec counter. I aligned Physical Disk\Disk Reads/sec (for the CSV disk) with Cluster CSV File System\IO ...
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Hyper-V is there a way to use hyper-v to upgrade all of your guest vm's in a cluster

Hyper-V is there a way to leverage hyper-v to upgrade all of your guest vm's in a cluster, not the cluster nodes but the vm's on them, like cluster os rolling upgrade. I have allot of vm's with ...
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How To Share Volume With Code Files Between Two Containers In A Single Pod?

I created a GKE cluster and inside it I created single pod with 2 conatiners with this yaml settings. apiVersion: v1 kind: Pod metadata: name: django-nginx spec: restartPolicy: Never volumes: ...
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Have Windows 2016 Scale Out File Server where CSV doesn't take VHD expand

The volume was 2.5TB in size. This is actually a VM running on a Hyper-V cluster. So I went to the Hyper-V cluster and using failover cluster manager went to settings and found the VHD Set (think ....
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what disk format I better choose for my windows server 2016 virtual machines for clustering? [closed]

I want to create 3 virtual machines hosted on my computer windows 10. these 3 machines would be : 1) 1 machine to be used as a domain controller 2) 2 machines running windows server 2016 datacentre ...
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Cluster Shared Volume Owner Node After reboot

Problem: In a failover-cluster (Hyper-v) the CSV (iSCSI) gets "pulled" to the node that just restarted (after updates) when i don't want it to. I can not find any setting defining CSV owner ...
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Mapping SAN to cluster nodes

I have mapped a block of space from SAN to 3 cluster nodes (2012r2)as below: 2 ports from each node have been mapped to the same share on SAN for redundancy. MPIO has been configured on all nodes SAN ...
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Windows 2008 R2 File Server Cluster Missing Volumes in Share Management

I have a Windows Server 2008 R2 File Server Cluster which is failing to correctly display disk volume information when provisioning a new share, and when undertaking share management. I've been unable ...
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Web Farms in Windows Server 2016 IIS with Scale-Out File Servers (SOFS)?

It's 2017 and I'm looking for some "best practices" guidance with IIS Web Farms across multiple VM servers. Pre-Server 2016 recommendations like Distributed File System-Replication (DFS-R) ...
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Miserable performance of Hyper-V storage on CSV

I recently setup a new environment consisting of: - QSAN Storage with 10Gib network - Mellanox switches 10Gib - 4 x Physical nodes connect to LAN and SAN 10Gib The physical hosts are connected ...
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Windows server 2012 failover cluster replace shared disk

We have cluster of 2 nodes (Windows Server 2012) with file server role. There is resource group configured under cluster which have multiple shared disks. As one of the disk is having file system ...
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Storage Recommendations for Hyper-v cluster on Server 2016

We have purchased a new set of 5 HP servers and an all solid state 16gb fibre Nimble storage system to replace our aged existing hardware, however, the decision was made above my head to switch from ...
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Can a Failover Cluster CSV volume be owned by two clusters during the upgrade process?

We have a 2-node Hyper-V failover cluster running Windows Server 2012 (R1) with about 60 virtual machines running; upgrading to Windows Server 2016 RTM. Since we aren't on 2012R2, we can't use the ...
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Create a Cluster Shared Volume with 3 Servers

I'm new to Failover Cluster and everthing that has to do with it. At the moment I have two Hyper-V hosts connected to a VLAN and a third server which I would like to use as a file server so the VMs ...
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3 node cluster with crossover cables

We have a windows failover cluster running Windows 2012 R2 for Hyper-V. Our storage is using Storage Spaces with a SAS3 JBOD. As such, we see IO transfers hitting 2800 MBps. Our networking is still ...
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Cluster Shared Volume 'no access' for a minute

We have a Failover Cluster with two nodes and a NetApp E Series Storage. The connection is iSCSI. All Windows updates are installed to the hosts, the storage controllers firmwares are up to date. ...
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How does CSV cache behave under memory load?

We're looking at using Microsoft's CSV cache feature in our new Hyper-V 2012 R2 clusters: It's enabled by default, with 512MB allocated to each CSV. The maximum memory that can be assigned is 80%. ...
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distributed storage solutions [closed]

I've got some desktop PCs available in my company since the last user hardware renewal and I would like to re-use them for a demo plaform. They are powerfull enought to emulate a few servers. I ...
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Trouble bringing a cloned cluster shared volume disk online

I have a Hyper-V cluster (2008 R2) with a CSV that I want to clone. The CSV is on a fibre channel SAN (HP MSA M3 P2000 G3). I cloned a volume from the SAN side of things, and have mapped it to my ...
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Removed cluster disk that wouldn't come online, now it wants to be formatted. Can I recover the data?

I inherited a failover cluster hosting several VMs and some storage volumes. It uses a fibre-channel SAN for storage. I updated firmware on the SAN controllers recently and when it came back up one of ...
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Vm goes to saved state when removing CSV

I have a 5 node Hyper-V cluster running. All 5 servers are running Server 2012 R2, each node is attached two devices using iSCSI. The device I'm having problems with had a single volume that was used ...
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SAN: How to determine amount of LUN and CSV

We have inherited Hyper-V environment (2008 R2) with SAN storage (HP4500 hardware). Two hosts and two SAN's for redundancy. Whilst I understand virtual machines well, I guess, my knowledge of storage ...
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Converting a Windows Server 2012 R2 Scale-Out File Server Back To Regular File Server. Is It Possible?

Well... I messed up. I didn't do enough research and just checked out the headlines then jump head first into the new Scale-Out File Server that Windows Server 2012 R2 brings to the table. At first ...
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RedHat Cluster 6 node won't see shared volume group

I try to create a shared clvm volume group shared between 2 nodes of a Red Hat Cluster 6. Here is the procedure I followed: [root@node1 ~]# pvcreate /dev/mapper/mpathab [root@node1 ~]# vgcreate -c y ...
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Force disk cache even if guest uses direct i/o

Have IBM db2 on Rhel on Hyper-V on Windows Server. The *.vhdx file is on CSV. e.g. C:\ClusterStorage\volume1\hyper-v\oktest-lb1\oktest-lb1.vhdx. db2 uses O_DIRECT flag (uncached i/o) for its database ...
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Is Hyper-V CSVFS supported on Linux VMs

We have a Hyper-V guest failover cluster with a few Windows VMs that are using Cluster Share Volume (CSV). Is it possible to use the same CSV for Linux VMs? Is CSVFS supported on Linux VMs at all ?
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glusterfs: failed to get the 'volume file' from server

I have a GlusterFS volume hosted on a remote fileserver. I can mount the volume from my webservers in the same DC as well as other servers in other DCs however when I try to mount the volume on my ...
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Changing 'disk ID' of Windows GPT disk via Linux

I have a SAN level snapshot\clone of a Windows cluster shared volume (CSV) whocj i want to mount on the same cluster to retrieve files, as form of backup. As detailed here: Accessing a storage-side ...
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SAN Storage Array in Hyper-V 2012R2 Failover Cluster - outdated file table info?

We have Dell MD3600f SAN storage array and two HP servers for VM failover clustering solution. MD3600f is set, disks are mapped and connected to Hyper-V servers. On Hyper-V's I have partitioned and ...
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How to Resolve Hyper-V Disk Location to Drive Letter

When viewing cluster disk properties in Failover Manager or the physical path to VHD's in the settings of a VM in Hyper-V Manager the location is displayed by GUID. Is there a quick way find out ...
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Cluster Shared Volumes offlining under excessive use

I am trying to understand (and ideally fix) a particularly annoying phenomenon I've noticed with Failover Clustering and Cluster Shared Volumes in conjunction with Hyper-V. It appears that under high ...
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Is ReFS ready to host production VHDXs on Hyper-V 2012 r2 clusters?

One of the new features that I didn't see listed in all the "Windows Server 2012 r2" posts is that Clustering now supports CSVs that are formatted with ReFS. So, naturally, I would like to change the ...
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Accessing a storage-side snapshot of a cluster-shared volume

From time to time I am in the situation where I need to get data back from storage-side snapshots of cluster shared volumes. I suppose I just never figured out a way to do it right, so I always needed ...
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