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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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Monitoring Windows Failover Cluster with Enterprise Manager

I'm trying to monitor SQL Server instances on a 2 node active/passive windows failover cluster with Enterprise Manager. Oracle gives the following steps: -Install local agents on both nodes. -Install agent on shared storage for the virtual hostname…
Sascha Rambeaud
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dual ISP firewall cluster in linux

For the past couple of weeks i have been trying to figure out how to make firewall cluster, each having different ISP. I have found few guides on how to do it with one ISP using technologies like keepalived and conntrackd. For example this one. Is…
user573959
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Windows 2016 Server Core - Add node to a SQL Server Failover Cluster (NOT Working)

2016 Server CORE. Add node to SQL server 2019 Failover Cluster. Steps were taken: Added the server to the Failover Cluster I found this page, Install SQL Server from the Command Prompt which is helpful. However, I am not able to complete the…
CodingEE
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Two Failover Nodes With the Same Disks, Is it Ok to Remove the Old Node?

Recently we've had a file server recreated with the same disks. The new server newfs1 was created with the same exact disks, same path, same disk; as the old file server oldfs1. Both servers are in the Failover Cluster Manager. The problem comes in…
confoundr
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You do not have administrative privileges on the server Failover Cluster

I am trying to setup a 3 node Failover cluster in Azure. The below is my configuration: Region: West Europe VM Size: Standard D2s v3 Storage: Premium LRS Data Disk: 2 numbers, 128 GB OS Disk: 127 GB, Premium OS: Windows 2016 DataCenter 3 nodes are…
Thomas
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Public service failover in a cluster

I'm getting started with physical server clustering, and have plans for a 3 node hyperconverged oVirt setup. I currently deploy all my apps and sites on VPSes and API-provisioned cloud instances. I have some experience with HA, but for each project…
pestaa
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"0x0000009E" Stop error when cluster node crashes in Windows Server 2012 R2

Full Memory Dump: https://pastebin.com/spkLeVYL Crash message is: USER_MODE_HEALTH_MONITOR (9e) One or more critical user mode components failed to satisfy a health check. Hardware mechanisms such as watchdog timers can detect that basic…
Kali
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Domain-joined Windows 10 Hyper-V VM reboots after RDP session disconnects

I have several Win10 VMs set up in Hyper-V on Server 2012 R2. The server participates as a node in a failover cluster. The VMs are Roles in the cluster. These are new VMs with fresh installs of Windows 10 Enterprise 1909. I've observed that when a…
Sam Axe
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Creating Windows Cluster with Powershell

I have a Windows cluster provisioning script. I am not able to execute the New-Cluster command as Administrator. It says that the user should be a domain user to be able to execute the command. I m trying to use PSExec to login as a domain user and…
Vini
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Which DNS Server gets updated when a Multi Subnet Failover Cluster performs a failover

We have a 2 node multi subnet cluster. When we execute a failover of one of the cluster resource groups we find the DNS update behaviour to be unexpected. NodeA and NodeB are each located in different datacenters: SiteA and SiteB. SiteA and SiteB…
Edward Dortland
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Static MAC addresses inside Failover Cluster causing MAC conflicts

I've 13 Hyper-V nodes in a Microsoft Failover Cluster. About 50% of our guests are Linux and work best with static MAC addresses. Our Windows guests work either way, but to keep things simpler we've been setting them to static mac addresses as…
Systemspoet
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Failover Cluster waits till the Site to Site DNS Replication done

I created a failover cluster with 2 subnets in AWS VPC. In one subnet I have DC1 (10.30.10.101) and Node 01 (10.30.10.102). In other subnet, I have DC2 (10.30.12.101)and Node 02 (10.30.12.102). Cluster is created (10.30.10.120 and 10.30.12.120) I…
Zac
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Not able to add node in cluster and getting exception while adding the node in Windows failover clustering

Recently one of the cluster node got rebooted(due to some disk corruption) for which we first removed from cluster and after that when we are trying to add it back into cluster we are facing exception. We tried to look for different like comparing…
Mr. K
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Can (and when) split brain occur on failover cluster with 2 nodes and disk witness?

we have a two node cluster with a shared disk quorum (iscsi). we are experiencing every now and again failures that are resulting in downtime. In the logs we see the 'conflict IP' on the shared ip, supposedly pointing to a split-brain between the…
GKman
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Failover cluster SQL server 2016: 'the remote computer refused the connection'

BACKGROUND We have a new SQL server 2016 failover cluster (without Always On) (clu1) with 2 nodes (sql1-2) and 4 roles/instances (app1-4) Connections from de nodes to the cluster instances work fine SSMS: clu1-app1\app1 THE ISSUE However, we can't…
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