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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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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.
Saleh Omar
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Why is it not possible for a DFS domain namespace server to work with shared storage?

I wondered why a stand-alone namespace "Can be hosted by a failover cluster to increase the availability of the namespace." while a domain namespace "[...] cannot be a clustered resource in a failover cluster." The Microsoft doc further states, that…
Zin
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windows 2016 failover cluster

Windows 2016 Failover Cluster with two nodes, both nodes have subnet A and B physical interfaces, and a generic service defined with client access point on both subnet A and B. Can I fail over from node 1 to node 2 when physical interface on node 1…
ptay
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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 since doing that can only start one of the 2 nodes…
Hugh Jones
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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 do I change it to go back to 1? Without causing…
Henry
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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 powershell. But I dont see there is any command for…
Root Loop
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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 AlwaysOn Failover Cluster instance to achieve…
MidTierDeveloper
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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 knew VRRP from networking equipment I decided to use…
Lapsio
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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). After installing, everything appeared to work…
Andrew Lackenby
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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 nodes are joined to the same Active Directory…
user1071840
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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" cluster: (C383355) No response from daemon on…
mans not hot
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What software/hardware to use to implement STONITH so that machine A can cut the power of machine B?

I'm trying to enforce split-brain protection when machine B takes over on a failover scenario. Basically I want to enforce that machine A is really out before machine B is activated, avoiding the infamous split-brain scenario. So I need a software…
Dickinson
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DRBD Status after Network fail become Primary/Unknown

i have the following structure: 2 nodes. corosync + pacemaker + DRBD + OCFS2. ============== After test Network fail the status from DRBD become: ****Primary/Unknown**** dmesg show the following: Split-Brain detected but unresolved, dropping…
Saleh Alashkar
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Windows 2008 Failover Cluster AD settings

I have two servers: serverA and serverB. They can see the same SAN disks: a 4 and a 400 GByte one. I created the Failover cluster on them, but the cluster says an error: Cluster network name resource 'Cluster Name' failed registration of one or…
Peter
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How to connect an NFS data store to Windows failover file server

I'm not sure if this is possible, but I want to use a Windows failover file server as a front-end to my NFS file server to be able to utilize features such as DFS, shadow copy, etc. Does it work that way? It that even possible? Or do I need to…
Mike
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