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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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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, something like xxx.xx.xx.xxx/xx. Next to it, it…
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2012R2 Cluster - Add host without downtime

Essentially just want to confirm my current thoughts - have a 3-node 2012R2 Cluster. We are replacing two of the hosts. At the point when you add a new host to the cluster and run the validation, the storage tests are what take the VMs offline.…
PnP
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Get-Cluster cmdlet fails when using -Name param

Summary When I call Get-Cluster powershell returns the name of my cluster. For simplicity sake, lets call it Cluster1. If I call Get-Cluster -Name Cluster1 it fails with an error. Error: Get-Cluster : Check the spelling of the cluster name.…
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What are the options for a HA system?

I'm looking into creating a HA Linux machine for my client's website. What are the main options I have, or a place/article where I can find out more? I would LOVE if it was a single-image, too, so that existing software would just work. Any help…
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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 server that is associated with the cookie value.…
Georgii Ivankin
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How to delete a Virtual Machine from Hyper-V Failover Cluster

I have a Hyper-V 2008 R2 failover cluster with 3 nodes. I added new 3 Virtual Machines to the failover clusters, one of them failed with errors: Event ID: 1069 Cluster resource 'Virtual Machine Configuration [server]' in clustered service or…
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When to employ server failover in a virtual environment

This question kind of got me thinking about fault tolerance in DHCP, so I did a little digging in my current environment and discovered that we only have 1 DHCP server per major site in our company with no redundancy. All of our DHCP servers are…
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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 machine (storage + failover machine on each…
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Windows Sever 2012 failover clustering: difference in max number of virtual and physical nodes

As far as I know there is a following limitation for maximum number of nodes in Windows Server 2012 failover clustering: 4,000 VM nodes or 64 physical nodes. Apart from apparent difficulties / management overhead of managing 4000 physical node…
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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 more problems or need more information regarding…
Untalented
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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 is one database instance, but perhaps a failover…
user160910
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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 doesn't do much - the service is not restarted…
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Newbie questions on MAC and high availability failovers

I am reading about High Availability and I can not understand the following I read: On failover the primary IP migrates to the backup server BUT so must the MAC address. Specifically I read that every machine has a unique address MAC that can be…
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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 year. However, in the past two months I've had to…
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HyperV Cluster using IBM X3650 M3 and DS3400 SAN

I am posting here, because reading a lot of documents on MS site and technical forums have caused only more confusion. The equipment i have: 2 IBM X3650 M3 servers; both have 2 72GB SAS disks configured as RAID1, 4 10/100/1000 ethernet ports and…
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