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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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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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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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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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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3
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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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4
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Failover Cluster Disk Replication
We have a Windows failover cluster containing a shared disk assigned to a Role and want to set up replication from it.
We tried removing the disk from the cluster to use DFS Replication, however we ...
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Add "File Server for General Use" on top of Storage Spaces Direct (S2D) Cluster
We have a S2D Storage Spaces Direct cluster that we are wanting to add a General Purpose File Server to.
Is it possible to use the S2D Cluster Shared Volume for the File Server role ?
When i try and ...
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1
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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 ...
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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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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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Azure datacenter 2019 failover cluster unresponsive after reboot only when shared disk is assigned CSV
We're seeing some really strange behaviour with a 2 node cluster on azure 2019 datacenter. We didn't see the issue right away but at some point it started happening and now we can repeat it.
We have ...
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1
answer
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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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1
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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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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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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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1
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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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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 ...
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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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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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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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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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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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2
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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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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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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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Hyper-V cluster-joined host chooses wrong NIC to send SMB traffic
I have the following scenario:
Four Hyper-V host servers running Windows Server 2019, joined in a Hyper-V Failover Cluster. Each server has the same network config - a Management network (Cluster and ...
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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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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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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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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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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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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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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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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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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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Immoveable VHDX files on Shared Cluster Volume
Some time back I created 2x VHDX files to attach later to Virtual Machines.
When I tried to add the disks today, I got an error stating the files are in use by another process.
I also cannot delete ...
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1
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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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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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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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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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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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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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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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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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