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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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 ...
0 votes
1 answer
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What is meant by Multi-Cloud Clustering? Can anyone help me in understanding it in detail? Any helpful articles will be highly appreciated [closed]

Can someone help me in understanding what Multi-Cloud Clustering is? How can it be done and which are the best options for Multi-Cloud Clustering in the market today? Thanks.
2 votes
1 answer
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Add 3rd server with pglogical replication to a 2 server cluster with stream sync replication and failsafe with patroni

I have 3 servers with Ubuntu 19.10, PostgreSQL 12.2 and Patroni 1.6.4 and I would like to have the following setup: I want to have two servers with synchronised replication and I want to add a 3rd ...
1 vote
1 answer
197 views

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 ...
2 votes
1 answer
2k views

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 ...
1 vote
2 answers
10k views

pcs status error httpd_monitor_5000 on server 'not running' (7):

Error Message Failed actions: httpd_monitor_5000 on abc-zabserver-b 'not running' (7): call=65, status=complete, last-rc-change='Wed Jul 15 21:44:43 2015', queued=0ms, exec=8ms pcs status [...
2 votes
1 answer
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 ...
3 votes
2 answers
662 views

WINS on a Windows 2016 cluster

Our client is still tied to WINS (let's not get into the whys and wherefores, its just the way it is) but we need to update the clusters that WINS is running on from Windows 2008R2 to Windows 2016. ...
0 votes
1 answer
609 views

SAN volumes not showing in new cluster

Some background.... We have Two hyper-v hosts running server 2012r2 with a number of guests. Msa1040 SAN with two disk pools The hosts are a two server cluster The two hosts connect to the san via ...
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1 answer
654 views

GuestVMs in a different VLAN than host in a HyperV Failover cluster

I'm smashing my head against a wall. I can't seem to get my guest VMs to use a different VLAN than my host machine. I have a 2 node Hyper V cluster(2016). Each node has 2 10Gig NICs in a Team. This ...
1 vote
1 answer
76 views

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 ...
1 vote
1 answer
329 views

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 ...
3 votes
1 answer
12k views

Where can I find the "Create Computer Object" Permission in Windows Server 2016?

I'm trying to prestage the cluster name object for the cluster I'm creating. I'm looking at the steps provided here (https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-...
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4k views

"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 ...
0 votes
1 answer
116 views

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 ...
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1 answer
1k views

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 ...
2 votes
3 answers
12k views

Better way to get Microsoft Failover Cluster IP address resource through PowerShell

Is there a better way to view the IP address assigned to cluster IP address resource through PowerShell? Today, I use Get-ClusterResource, but I have to populate the cluster IP address resource name ...
2 votes
1 answer
1k 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 ...
2 votes
0 answers
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How touse iSCSI HA with Windows Server [closed]

I have one Windows Server 2012 standard, one Windows Server 2016 standard, two QNAP. We planning to store all files in QNAP and create VM in Windows Server for clustering. We want to have high ...
6 votes
1 answer
10k views

Storage Space Direct : SMB error

So we've got this 4-node Storage Space Direct (S2D) cluster, working for more than 1.5 year without any major issue. The OS is Windows Server 2016. Firewall down for all profiles No antivirus ...
3 votes
1 answer
97 views

Hyper-V cluster migrations / vSAN software

We’re in the process of performing a large physical-layer upgrade with our hypervisors and I am looking for some advice regarding our proposed configuration and VSAN Software. To break things down, ...
3 votes
0 answers
918 views

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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530 views

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 ...
0 votes
1 answer
2k views

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 ...
0 votes
1 answer
235 views

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)....
3 votes
1 answer
530 views

DRBDManage with Pacemaker on CentOS 7

I have 2 CentOS 7.6 nodes which I have configured with drbd, drbdmanage and pacemaker for active/passive failover. during a failure my vip and drbd service failover from primary to secondary the next ...
1 vote
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4k 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 ...
5 votes
1 answer
297 views

Nested Virtualization and CSV issues in Hyper-V server Cluster Failover

I have 3 Windows server 2019 VMs,virtualized on Windows 10 pro. (MAIN HOST) server 1 is AD/DC/ISCSI target/DNS/DHCP. server 2 and 3 formed a failover Hyper-V Cluster and this cluster hosts a ...
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2k views

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....
1 vote
1 answer
2k views

Resources are UNCLEAN when I unplug the preferred node

I'm very beginner within linux network configuration I configured linux pacemaker + corosync + stonith via ssh + drbd + nginx for 3 nodes. pcs status: 3 nodes configured 7 resources configured ...
1 vote
1 answer
744 views

Failover Cluster validation test failed

Greetings fellow admins, I'm trying to set up a SQL server failover cluster with 2 Windows Server 2016 servers on a VMware vSphere host. When validating the Cluster I got the following error: List ...
1 vote
1 answer
52 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 ...
0 votes
1 answer
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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) ...
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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, ...
0 votes
1 answer
1k views

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 ...
2 votes
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3k 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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204 views

Azure Cloud Witness with HTTP proxy

Windows Server Documentation states: Proxy considerations with Cloud Witness Cloud Witness uses HTTPS (default port 443) to establish communication with Azure blob service. Ensure that HTTPS ...
2 votes
1 answer
117 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 ...
3 votes
1 answer
3k views

IP Resource Errors While Building a Windows Failover Cluster on Azure

I have setup a failover cluster in Microsoft Azure on four VMs. I have two nodes in one subnet/region, one node in another subnet/region and a final node in a third subnet/region. The cluster passed ...
1 vote
2 answers
92 views

failover two redhat node

I want to know is it possible to failover 2 Redhat physical nodes. both nodes are identical and they dont have any shared storage. I want to failover two separates redhat physical nodes when NodeA ...
3 votes
2 answers
12k views

How to Reboot a Server in a Failover Cluster

We have a failover cluster manager managing 4 node(host) servers. How would I go about rebooting one of the nodes in the failover cluster.
3 votes
1 answer
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Quorum disk size for Windows Server 2019 failover cluster

I'm setting up a Windows Server 2019 failover cluster, and I've seen advice to put the cluster quorum on its own LUN. How much disk space should I dedicate to it? It does not appear to take much ...
1 vote
1 answer
336 views

Set up MS cluster 2016 with multi forest domain

i am trying to set up a two node MS cluster 2016 with cross forest. currently i am having two separate domains and having trust between domains. like a.com and b.com domains and trust enabled between ...
0 votes
0 answers
404 views

Windows failover cluster from another domain

So I am having an issue creating a failover cluster for 2 HyperV nodes. The 2 nodes have been joined to a domin of their own called hvtest.local. The PC I am tring to create the cluster from is on a ...
3 votes
2 answers
20k views

vSphere 6.5 HA agent cannot be correctly installed or configured

Last week we encounter the following issue : we had to shutdown our entire infrastructure due to UPS replacement. At the end of electrical operations we had restarted : network SANs vCenter ESXis (2 ...
9 votes
2 answers
9k views

Is there any way to prevent Storage Spaces Direct from automatically adding disks?

Got a problem here on a 2016 Windows Server Failover Cluster (WSFC) hosting an SQL Failover Cluster Instance (FCI) employing Storage Spaces Direct (S2D). On each server, after successful initial ...
7 votes
1 answer
9k views

How to setup IIS on Failover Cluster with Shared Data

I'm trying to setup a highly available IIS for public facing websites, and I'm having a hard time finding information on the best and most secure method of setting up the permissions, correctly ...
0 votes
1 answer
44 views

Failover Hyper-V 2012 R2 with CSVs backup

We have a VMM-managed set of Hyper-V 2012 R2 clusters. Virtual machines are backed up with TSM, but currently there is no in-place backup for clusters themselves. I can't find (obviously I have ...
1 vote
1 answer
52 views

Windows Server 2016 (Backup - opinion)

I'm looking for a simple answer. I have a server here that's identical to our primary server. I want to make this server our backup server. Can someone point me to a resource or mention the ...
1 vote
0 answers
53 views

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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