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Preventing VM Failover in Hyper-V cluster

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Take this example: 

* I have a hyper-v cluster severed by a pair of stacked switches and I need to take the whole stack of switches down due to a vendor issue, isolating the network for 5-10 minutes. 

* I want to prevent any VM from failing-over during this time, so the network effectively just blips. I want the machines to stay on and stay where they are no matter what. 

Would it be sufficient to pause all of the nodes (not draining roles) or is there anything else needed?

Many thanks.


Cluster node that cannot add disk

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We have a MS cluster with 2 nodes.

I have added a third node. There was no problem adding it to the cluster. But this node has separate disk. It is still storage disk. It is presented from a 3PAR. And I cannot add the disk to the cluster. It says no disk is suitable. 

But if i present this disk to one of the other previously existing nodes I can add the disk. It is only the new node that can not add the disk. 

Any ideas?

Create one shared volume from three physical LUNs

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Hi community,

I have 3 LUNs of 1TB. Can I create a 3TB shared volume on them ?

I my knowledge, to add a disk in the cluster it should be basic. but we cannot merge 3 basic disks. Also Failover clustering doesn't support dynamic disks.

Any help please?

Regards,

Cluster

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Dear Friends,

Have configured cluster successfully, While add disk in failover cluster manager getting error below.

[Window Title]
Information

[Content]
No disks suitable for cluster disks were found.  For diagnostic information about disks available to the cluster, use the Validate a Configuration Wizard to run Storage tests.

[OK]


ITandIT

unable to access application using VIP network share

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Hi all,

I'm having trouble accessing unc path to the shared application. application is installed on two server app1 and app2 and they can be accessed using UNC path \\app1\application.exe or \\app2\application.exe.

For fail over purpose we have load balancer device which they gave a VIP name app.

Now the application is accessed using \\app\application.exe. Suddenly accessing the VIP UNC path is failing with event log. During this time I can access \\app1\application.exe works fine.

event if 30809

Source SMBClient

Log Name: Microsoft-Windows-SMBClient/Connectivity

A request timed out because there was no response from the server.

Server name: \app
Session ID:0x0
Tree ID:0x0
Message ID:0x0
Command: Negotiate

Guidance:
The server is responding over TCP but not over SMB. Ensure the Server service is running and responsive, and the disks do not have high per-IO latency, which makes the disks appear unresponsive to SMB. Also, ensure the server is responsive overall and not paused; for instance, make sure you can log on to it.

Could anyone please suggest a solution.

Shekar

 


Shekar-Technet


Shekar-Technet

Configure Quarom and pools, roles

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Hello Friends,

Have configured cluster with two notes with server 2012 R2. can anyone help me to configure below. We are going to run Hyper-V in this cluster.

Configure Quarom and pools, roles. Please refer screenshots below.

Have done google search, however. unable to find sutable information as per my requirement.

Please help me with the steps.


ITandIT

Network load balance

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Hi,

I have 2 virtual machines running on hyper-v. I have created a lab cluster with the cluster IP address x.x.2.x that is on a different subnet as the dedicated IP address x.x.1.x on the nodes. From a server in x.x.2.x, cannot ping the dedicated IP address of the nodes as well as add the cluster to NLB MMC after the cluster is created.

Once the cluster is deleted, I can ping the host. What could be wrong?I setting a cluster IP address that is a different subnet from the nodes supported?


no storage disk in the cluster on failover cluster manager

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Hello team,

i have two nodes windows cluster running on window server 2008R2 which is running in vsphere environment  and Logical disk are virtual disks(Sql DB, SQL logs)only and not in the LUN wants to know is it normal behavior because i didn't know the disk were added already in the storage disk page as you may see the below screenshot

i have checked that the cluster report and says that no disks were found.

Please let me know the solution. DBA guys says that, issue because of disk is missing in the failover cluster manager under storage but cluster report and cluster events no critical and error messages.



Many thanks in advance

Ansar


AGlistener & WSFC not ping from DC & node 2 servers || Mutiple subnet always on

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im facing AG-listener pinging  issue from DC and node2  servers, ICM ports are opend. we coudn't access the ag-listener.

we able to access ag-listener only node 1 ( primary server ) 

we configured mutiple subet always on 


Hardware requirements for cluster Hyper-V

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Dear Support,

I have two servers one with 6 cores intel Xeon E5_2620  2.0 Ghz and the other  with 8 cores intel Xeon E5_2640 V3 2.6Ghz.

i plan to install windows server 2016 with hyper-V, my question is can i configure high availability between the two server with two different cpu

thank you

Error Code: 0x8007139a, the cluster resource could not be brought online by resource manager

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Hi,

I have 2 Windows Server 2008 R2 servers configured in fail-over cluster environment with 7 Cluster disks.

Yesterday I got an error in the "cluster event" that the "Cluster Disk 2" is failed and not coming online.



When I am trying to manually making online these disks, I am getting this error

I have validated the cluster configuration and it failed.

I have checked for the disk in my disk management, and its showing offline, and I am not getting any option to bring it online.

I have also tried making disk online through diskpart, but it did not work.

Now what is happening, when I move my cluster disks from one node to another, its working fine and applications hosted on cluster is also running.

But when I restart one node from the cluster, disks goes down in another node as well with error in event viewer.

Can anyone help??

Failover Cluster can not choose storage in validate a configuration wizard

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Hello!

I have a 4 NODEs WinSRV 2016 cluster. I want to add the new NODE to existing cluster. The new NODE OS is WinSRV2019. Before adding to the cluster, I would like to run Validate Configuration wizard. When I select the new NODE (HYPERV05) I can not select the appropriate storage because not show the Review Storage Status. Why don't appear the Review Storage Status pane? The Review Storage Status pane should be between the Test Options and Confirmation.

Thank You!


Multiple clusters - same VLAN for the cluster nets. ?

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Hello just wondering if it is ok to have 2 failover clusters, where the cluster networks are in the same VLAN, or if this may cause issues between nodes of the different clusters. example scenario for clarity below.

1. a Hyper-V 3 node cluster is in place, and has 2 cluster networks, on seperate private VLAN's / subnets (cluster and Live migration nets.)

2. A guest cluster of 2 VM's is hosted on this hyper-v cluster, in this case, is it ok to have this guest clusters network utilize the same cluster network as the host, same vlan / same subnet, but with different IP's from the subnet obviously.

Is this ok, or is there any potential for the cluster nodes from the different clusters to have issues with this, I cant find any detail on this point, only lots of information about multi subnet clusters, which is not relevant.

Cheers.

Cluster Creation Wizard fails with 0x000004ca error

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I have already working cluster on 2012 R2 Database with 2 nodes. 

Now, I tried to add another one node, but on WinSrv 2019 Database. Failover Cluster Role and MPIO already sets. 

All test are good for new node.

But wizard on cluster show this: Error code - 0x5b4. On russian: "Служба кластеров на узле HV01 не находится в состоянии выполнения. Код ошибки — 0x5b4. Для получения дополнительной информации проверьте журнал кластера и журнал событий системы с узла HV01. Возврат из операции произошел из-за превышения времени ожидания."

There is a log:

00002558.00001ef0::2019/05/26-15:14:44.289 INFO  [SV] New real route: local (10.10.0.170:~3343~) to remote  (10.10.0.173:~49784~).
00002558.00001ef0::2019/05/26-15:14:44.289 INFO  [SV] Got a new incoming stream from 10.10.0.173:~49784~
00002558.000020d4::2019/05/26-15:14:44.297 INFO  [CHANNEL 10.10.0.173:~49784~] graceful close, status (of previous failure, may not indicate problem) (0)
00002558.000020d4::2019/05/26-15:14:44.297 ERR   mscs_security::BaseSecurityContext::DoAuthenticate_static: GracefulClose(1226)' because of 'channel to remote endpoint 10.10.0.173:~49784~ is closed'
00002558.00001ef0::2019/05/26-15:14:44.297 WARN  mscs::ListenerWorker::operator (): HrError(0x000004ca)' because of '[SV] Authentication or Authorization Failed'

------------

Не удается добавить ноду к существующему кластеру. Кластер на базе WinSrv2012 R2 Database. Добавляю ноду на 2019 Сервере. Роли стоят, проверки на новой ноде проходят корректно. Но при добавлении нового узла через Мастер выдает ошибку (см.выше ошибку и лог). Права в GPO "Доступ к компьютеру из сети" стоят для Всех. Именно такой код ошибки в инете не нашел нигде. Неужели проблема в совместимости 2012 R2 и 2019 серверов?

Server 2016 Hyper-Converged cluster disk speed degraded.

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Hi Guys

We have a 2 Server 2016 Hyper-Converged cluster running storage and VM's.

We have SSD 900gb (2 per server) as cache drives and spinning disk 1.1tb (4 per server) for the DATA drives.

When we <g class="gr_ gr_85 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del" data-gr-id="85" id="85">setup</g> the cluster and we tested new VM's running on the cluster we were getting about 900mb/sec.

The cluster has been running now for about 6 mount's one of the developer complained about the speed on a VM.

Now when I test I only get about 200mb/sec. I cannot see any errors on the Cluster. The only thing I can pick up that the SSD's only have about 30gb space left. Is there a way to clear the cache or reinitialize the cache?


HyperV 2016 Cluster lost CSV Storage

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We use in a Datacenter a HyperV Cluster 2016 with 8 HP  GEN10 Nodes. The Storage is a Hitachi Enterprise Storage connected with FC - 2 Ports - 4 Ways 16GB. The Storage is FullFlash. We have 10 LUNs Esch have 5TB. A other Customer use the same Storage with a VMWARE Cluster. When the Storage latency go high (800-2000ms) the HyperV Cluster lost the Storage. VMWARE has no Problem with this.  

 

Best regards 

Thomas 


Thomas Lauer

HangRecoveryAction '6' instead of '3'

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When running the validation report for a new Server 2019 Hyper-V cluster I got the following error:

The setting for HangRecoveryAction on this cluster is not the default and recommended setting. This setting controls the action taken if it is detected that the service is not responding. This is configured to have a HangRecoveryAction value of 0x6, the recommended value is 0x3. The following is a list of values and the action that they indicate.

'6' seems to be a new standard value in Server 2019 but I can't find any documentation about what option 6 does. The standard used to be 3, but I'm a bit anxious about changing it back, because this seems to be the new standard.

Does anyone know why this changed and what option 6 means?

Failover Cluster

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My domain contains 2 member servers named Server1 and Server2 running W2K12R2. Server1 and Server2 have failover cluster feature installed. Servers are configured as nodes in failover cluster. I add additional 2 nodes in cluster. I need to ensure that cluster stops working if 3 nodes get failed. Which property I should configure?

Affinity-node

Affinity-Single

The Possible owner

The Preferred owner

Quorum settings

The host priority

SETSPN Clustered Fileserver ROLE does not show the shares when accessed by CNAME MultiSubnet

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On windows server 2012 R2 and windows server 2019

I have been trying to setup a Clustered file server role and then I wanted to point at it trough a load balancer. But When I try to access the shares with the cname, the shares are not enumerated, or shown.



I used

setspn -a host/cname cluster_role_name

and

setspn -a host/cname.fqdn cluster_role_name

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters

3. Add a new REG_DWORD 32bit entry using the edit menu.

Value name: DisableStrictNameChecking

Any Ideas What I am missing? 

to check high availability of a VM in failover cluster which powershell command should I run

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I have W2K12 R2 Hyper-v cluster. I manage virtual environment using Microsoft SCVMM. I need to find whether failover cluster is properly configured to support highly available Vms. Which powershell cmdlet you will use?

Test-cluster

or

Test-clusterresourcefailure


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