Questions tagged [failovercluster]

A failover cluster is a group of servers that work together to maintain high availability of applications and services

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Windows Server 2012 - Hyper-V - iSCSI SAN - All Hyper-V Guests stops responding and extensive disk read/write

We have a problem with one of our deployments of Windows Server 2012 Hyper-V with a 2 node cluster connected to a iSCSI SAN. Our Problem Our problem is that for some reason all of the VMs stops ...
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Windows Server Failover Clustering - cannot choose desired subnet when creating

I'm setting up a new WSFC cluster, intended for SQL HA, but that's not actually important as yet. Node A has: An IP in Subnet 1: this is where the machine's "primary" IP is, set by the hoster. An ...
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375 views

Can you run CAU on an Exchange 2010 DAG cluster?

I've searched for this and I expected it to be a common topic, but I can't find any information on it. Given that the Exchange DAG is built on top of WCF, will CAU properly handle updating a DAG ...
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Validation Failed On Windows Failover Cluster Access Denied

i have 2 node will be setup windows failover cluster. every node already connect to Active Directory. when i validate on windows failover cluster, still failed on List Disk error message like this
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1answer
59 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 ...
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pacemaker not monitoring the service although giving op monitor interval=10s while creating resource

Following is the service scripts which runs custom script. [root@xxxxxxxxxxvmrf0001vbisalah001 ~]# cat /etc/systemd/system/drbdRes_rhcdDaemon.service [Unit] Description=Manage drbdRes cluster ...
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1answer
1k views

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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(Windows Server 2012 R2) Is it possible to split a failover cluster into 2 new clusters by expanding and splitting the existing cluster?

Say you have an existing application cluster using Windows Failover Clustering - something perhaps like this: Roles: File Share Services RavenDB ClusterDisk Service ServerName (ravendb.mydomain) ...
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44 views

Using Windows failover cluster role TCP address for application

I have a 2 node Windows 2012 R2 guest failover cluster built as a generic service (say 192.168.1.1 and 192.168.1.2 are node 1 and node 2 static IP's). The generic service role IP is 192.168.1.100. ...
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1answer
93 views

FCM not loading Properties for configured Hyper-V shares

Have 3 nodes 2 of which are part of a hyper-v cluster. Many moons ago I configured network shares within FCM, for the last few days when attempting to select properties for specific shares it displays ...
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2k views

Why new two node cluster not behaving right?

I’m trying to create cluster of two nodes, but it seems to behave a little strange following this guide, but I was unable to do, for example: [root@afnA ~]# pcs property set stonith-enabled=false ...
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1answer
915 views

Install optional updates using Cluster-Aware Updating

The question is simple - how can I install updates listed as "optional" in Windows Update using the Cluster-Aware Updating feature in Windows Server Failover Cluster? I installed all the important ...
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1answer
556 views

Setting up Windows Server Failover Clustering in SoftLayer

I'm trying to create a Windows Server Failover Cluster. I've already create Active Directory successfully. I'm currently at this stage: On the screenshot, the blurred place has subnet/network id, ...
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1answer
1k views

How to make Nginx fire 504 immediately if server is not available?

I have Nginx set up as a load balancer with cookie-based stickiness. The logic is: If the cookie is NOT there, use round-robbing to choose a server from cluster. If the cookie is there, go to the ...
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windows2012 failover cluster + storage. Considerations

We plan to build a failover storage with Windows2012r2. There will be 2 or 3 physical machines with 2 virtual machines on each server. One virtual machine building a failover, second one being storage ...
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SQL Failover Cluster IP Migration

I have a four node cluster setup which I need to migrate from subnet A to subnet B. The cluster has roughly 12 instances running on it. I've found articles to update the SQL Cluster IP, but I've got ...
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TeamCity (or Jenkins) with Cluster/Replicated servers

We use Team City 7 for Continuous Intergration. Sometimes I need to bring down the server for maintenance which stirs up complaints. Is anyone using a cluster for these types of servers where there ...
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1answer
520 views

SQL Server 2008 R2 Failover Clusters behaviour on multiple failures

I'm testing the resilience of one of our test systems. We have 2 x DB (SQL 2008 R2 on Server 2008 R2, running in ESXi VMs) arranged in a Failover Cluster. Shutting down the Active SQL Server service ...
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Wierd Windows Clustering Issue

hoping someone could direct me to the right direction. I have a Windows 2k8 R2 file server cluster. Each of the two boxes resides on two HyperV hosts. Everything has been working smoothly for over a ...
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1answer
712 views

Hyper-V Cluster Resource Hosting Subsystem (RHS) Questions

I have responsibility for multiple large-ish Hyper-V failover clusters. I very occasionally see an issue where the 'ISALIVE:0' check will fail for a virtual machine (via the vmclusres.dll library) and ...
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Stop Cluster Group without PowerShell Module and WinRM

We have a requirement in our team to use a PowerShell command to stop the Cluster Group without using the FailoverClusters Module or any module. Also, the requirement is not to use WinRM/Port 5985. I ...
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315 views

Can't Live Migrate or move Hyper-V VM

we have a two-node Server 2019 Hyper-V cluster with an SSD SAN providing the shared storage. I'm in the process of trying to update the host servers with their windows updates. I planned to move all ...
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Failover Cluster Missing Disks

I'm stuck with a weird situation to which i could not find a solution. I Have 3 AWS instances (windows server 2019) joined to a failover cluster and each one of them have an instance store volume ...
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23 views

how to view old events in failover cluster manager

In failover cluster manager > cluster events, i have only for about 12 hour of events. I wish to view older ones or maybe how to make the manager show more than that.
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Exchange 2013 DAG - where to place witness server?

We have a setup with two Exchange 2013 servers (EX01 and EX02, every with all roles) in DAG on the single site. DAG is only for failover purposes. I'm planning to move one server to the second ...
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2k views

Unable to add new 2019 HyperV node to 2012R2 HyperV Cluster

I could really use some help here. I evicted an failed HyperV node from our 2 node 2012R2 Hyper-V cluster. The node has been rebuilt with server 2019 and am trying to re-inject it back into the ...
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1answer
45 views

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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Where to put the witness disk in Windows Failover Cluster?

I have built a Windows Failover Cluster but I am really confused about in which network should the Witness reside? In my current configuration the Witness is in the Heartbeat network.
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372 views

VirtualBox Failover Cluster with iSCSI

I have created 2 identical virtual machines running Windows Server 2008 r2 with the intention of creating a failover cluster environment. I attached an iSCSI device as hard disk to both nodes, but ...
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801 views

Failover Cluster Manager - How to make a cluster vote again

I disabled one of the failover cluster firewall rules to test something on a node and it took the node down, re-enabling the firewall rule, brought it back online. But now the current vote says 0. How ...
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1answer
1k views

How get get Failover cluster volume information using powershell?

The screenshot below is Win2012R2 Failover Cluster Volume. Those volumes are mapped from SAN through FC connection. I am trying to get this volume information as shown in screenshot by using ...
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Using AlwasyOn Failover Cluster Instance in conjunction of Peer to Peer Transactional Replicaiton

We are deploying two physical sites each with writable/readable access to its local SQL server. Each site has site redundancy and also cross site synchronization is required. My thought is to use the ...
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511 views

Can you use peacemaker with keepalived as communication layer?

I'm new to HA topic and I'm trying to get some bigger picture here. I have 2 hosts that run few services - mostly nginx and NFS for other servers. My primary goal was to make nginx redundant. As I ...
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1k views

Disks offline after reboot

Using Esxi 5.5, I created a 3 node windows failover cluster in Windows Server 2016 in order to run SQL Server 2016 Always On High Availability. Each node of the cluster has 3 disks (O/S, Data and Logs)...
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312 views

Can add only one windows machine to failover cluster, both are joined to same AD domain

I want to setup a failover cluster with 2 Windows EC2 instances, for which I'm following this link. One of the pre-reqs listed says that, Make sure that all servers that you want to add as cluster ...
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Solaris Clusters - cluster: (C383355) No response from daemon on node

I followed the instructions here to setup 2 node solaris cluster At the end of everything I noticed that one of the node's status is "offline" I also see the following message from "# cluster status"...
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SQL 2016 clustering, creating and failover

I'm a application manager, and I had my application wizard create a SQL database on the clustername, not on one of the two nodes of the cluster, but on the clustername. Now a week later, my ...
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445 views

Unable to add share to 2012 R2 file server cluster - Role name not found

I am trying to set up a proof of concept file server cluster to ensure it will meet our needs before we implement a live cluster. I have setup a cluster of two nodes, with 2 networks (one for cluster ...
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1answer
4k views

Windows Cluster Communication Issues

When I first created a windows cluster (with a Cloud Witness if it matters), everything went smoothly. Then something went wrong with the communication and I had to destroy the cluster. Now, when I ...
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Network Connectivity of Windows Failover Servers

I have two servers running Windows Server 2016 with the Failover Cluster role, each of which is running as a Hyper-V virtual machine on a different host. The servers are on the same subnet and are ...
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727 views

Windows Failover Cluster node in Azure - Assigning a cluster IP address

I've built a 2-node Windows Server 2012 R2 failover cluster, one node being in my on-premises network and one being an Azure (Resource Manager deployment model), in part following this MS article In ...
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MS SQL - HA & load balancing best solution for servers at different geo-location

Customers has App server (MS Server 2012) and Storage server (MS SQL 2012), with several hundred clients accessing server app via VPN. Now they want to have a high-availability and also load ...
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Failing over to mirror instance when not using a witness server

I have a set up where I have two SQL servers set up for failover mirroring to two other SQL servers. I am not using a witness server. I had previously used a witness server and that of course would ...
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Run generic Windows Service with affinity for the Primary Replica of an SQL Server AlwaysOn Availability Group

Is it possible to configure a generic Windows service in a Windows Server Failover Cluster such that the service always runs on the same machine as the Primary Replica (read/write) of an SQL Server ...
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1answer
4k views

Windows cluster has lost or discarded the CLUSDB

Both nodes of a two node windows failover cluster on 2008R2 have lost the CLUSDB file. I think this happened because an inexperienced admin came to a cluster with a reserved disk issue and re-...
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370 views

How many MSDTC clustered services (if any) are needed for a multiple-instance SQL Server 2012 cluster?

I'm creating a new SQL Server 2012 cluster, running on 2 physical nodes (the O.S. is Windows Server 2012 R2); the cluster will host multiple SQL Server instances; the exact number is yet to be defined,...
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1answer
3k views

How to set up cluster with SESSION replication in Coldfusion 10?

I am not able to set up a cluster with session replication. I have successfully set up a cluster with sticky session. When googled I found a lot of links explaining the same issue, like http://...
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Got “page isn't redirecting properly” issue In mod_jk clustering

I have installed two jboss AS 7 servers on two different machines and i start these two by switching standalone-ha.xml configuration. Also i installed an apache httpd server in one of theses machine ...
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429 views

Getting the DB2 Resource online in Failover Cluster

I'm using DB2 10.1 Enterprise Server Edition on Windows Server 2012 R2 After adding the DB2 resource to the cluster using the db2wolfi command, I go to the resources tab which is in the cluster ...
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Failover cluster wouldn't fail over

I have an active-passive failover cluster on 2008r2 with SQL server 2008 clustered on it. I go to fail it over for maintenance and the resource failed to come online on either node. Once I rebooted ...