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Questions tagged [failovercluster]

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

A failover cluster is a group of independent computers that work together to increase the availability and scalability of clustered roles
The clustered servers (called nodes) are connected by physical cables and by software. If one or more of the cluster nodes fail, other nodes begin to provide service (a process known as failover). In addition, the clustered roles are proactively monitored to verify that they are working properly. If they are not working, they are restarted or moved to another node.

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How to manage failover in ZooKeeper across datacenters using observers

I have an application running in 3 different datacenters that uses ZooKeeper for many tasks. Following the recommended practices, we have deployed three ZooKeeper ensembles where one datacenter contains common ZooKeeper instances and the other two…
Matheus Portela
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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 error we want to replace it with a new disk (LUN…
Amit G
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Hyper-V Cluster network not reachable between nodes

Microsoft recommends a Hyper-V Cluster has its own dedicated cluster network that will be: Used for inter-node cluster communication such as the cluster heartbeat and Cluster Shared Volumes (CSV) redirection. With help from the following guide…
ADarkDivideGem
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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 new rolling cluster upgrade process. So, during…
Brett A.
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Resolve DNS command returns different IP addresses

I have a failover cluster with two nodes. Both machines are ESXi VM with two network adapters: first one public and the second one is private. When I trying to resolve DNS name for any of node I receive mix of IP addresses (there are public and…
user1980915
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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 on Gigabit LACP links, severly limiting speeds…
Mitch
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How do you put a cluster disk in maintenance mode in Windows Server 2012 R2?

Background: I have created a test 2-node Server 2012 R2 cluster, with an iSCSI cluster disk. I want to format a new partition on the disk. When I try to format the new partition, it says the disk must be in cluster maintenance mode. I cannot find…
Mark Raymond
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Bridging host-only subnet on multiple Dom0s

I currently have two XEN-Hosts running a set of virtual machines. These machines can communicate with each other via a host-only network. I want to be able to move virtual machines between both servers without the VMs even noticing they have been…
Christopher Thonfeld-Guckes
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Maximum Timer for Drain Roles?

This is one of those weird questions I would expect to be documented (Especially on Tech Net), but I honestly haven't found an actual explanation. As of Server 2012 R2 you can set your cluster nodes to drain on shutdown. However, as is the case…
Naryna
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failover cluster creation Error

I am creating a fail over cluster, but doing so i get the error "An error occurred while creating the cluster. An error occurred creating cluster 'testCluster'. This operation returned because the timeout period expired " Moreover following is my…
Sabih Ahmed Khan
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Server 2012 R2 - Sharing 'cluster shared volume' .VHDX hard drives between two VMs, are they supposed to not live update?

I have a .VHDX volume that's a cluster shared volume in a Server 2012 R2 failover cluster. I'm able to share the hard drive between two VMs. If I create a folder on VM2, it doesn't show in VM1 in the hard drive unless I reboot that machine or go…
Christopher Bruce
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Should I continue to use MSDTC in my new virtual environment for MSSQL?

In the past I have used a two node cluster setup. All the services (SQL, File Server, App Server, DTC) were passed back and forth within the cluster as normal. Now I take a different approach. I like to build my 2 node cluster and ONLY install the…
Arvo Bowen
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Windows Server 2012 R2 Hyper-V - High Availability (Clustering): Connect servers to storage using FC: switch or direct attach?

My scenario: I have a DS3400 DISK SYSTEM DUAL CONTROLLER FIBRE CHANNEL storage equipped with two controllers each equipped with two 4-GBPS FC ports, for a total of four FC ports. Then I have four servers each equipped with one IBM 4-GBPS FC…
icarrara
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Proxmox HA Cluster tiebreaker node

I want to setup a Proxmox HA Cluster using a quorum for reducing the risk for a split-brain. So I need 3 nodes. Is it possible for one of the nodes to just act as a tiebreaker node without running any VM or container? That way I could use 2…
Michael
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Why do I get BPA error "Servers in Failover Clusters Must Have a Hyper-V Replica Broker Configured"?

I configured a Hyper-V Failover Cluster with two nodes and one domain controller. Cluster-Aware Updating is enabled. The BPA shows the following error: To Participate in Replication, Servers in Failover Clusters Must Have a Hyper-V Replica Broker…
Daniel
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