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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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Windows Disk Event 11: 'The driver detected a controller error on \Device\Harddisk1\DR1.' for all offline Cluster Storage Disks

I'm using several Windows Server 2019 Clusters (e. g. Hyper-V, File Server). On all machines that have clustered roles, I get the following errors (with different harddisk numbers): Log Name: System Source: Disk Event ID: 11 Level: …
stackprotector
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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…
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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, here’s a high-level view of our current working…
d4rk0wl
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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 IP in Subnet 2: this is subnet intended for…
Nik
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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 node but I couldn't connect to drbdmanage to…
Sajirupee
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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 space on my test cluster. This cluster will be used…
Christopher Hostage
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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.
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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 in cluster) After waiting for ESXi's startup, we…
cJu
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High Availability on DAS HPE

Anyone who can assist me? I currently have a DL360 Gen9 HPE server Directly attached to HPE MSA 2040 device (DAS). I now need to ensure HA on the server level, is it possible to have FO cluster (Hyper-V) on this platform without introducing a Fiber…
Msemane
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S2D warning: No disks found to be used for cache

I have a Storage Cluster consisting of 2 Windows Server 2016 Datacenter configured with a storage pool with 3 virtual disks consisting of the following physical disk. MediaType : HDD FriendlyName : HP EG0900JFCKB BusType : SAS …
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Windows Server 2012 R2 network Failover?

i have two windows server 2012 R2 using to running software (sms gateway) , i want to configure a network failover , if the first server goes down the second server goes up. note: the both server need internet connection to connect with the mobile…
Ahmed Giledi
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Why Redis slaves don't take over the master after master fail in Redis Cluster?

I have a Redis Cluster with 2 masters and 4 slaves (2 slaves for each master). After I manually crash a master (i.e. redis-cli -p 6379 debug segfault) slaves doesn't do anything. They detects that something wrong with the master but they are doing…
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Fail over of iSCSI attached storage

We have a Windows 2012 R2 Hyper-V VM that has multiple drives attached via iSCSI directly to a SAN. These drives are accessed through multiple other 2012 R2 VM's using UNC paths to add and fetch files (very rare to update/delete). The files are…
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Could not get domain controller name from machine

While validating a Failover Cluster over two member servers I get the following two errors: Connectivity to a writable domain controller from node SQL2.domain.com could not be determined because of this error: Could not get domain controller name…
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Windows Failover Cluster - Trying to create MSDTC Role - AD Permissions issues?

I normally hang out in the DBA Exchange but I'm coming to ServerFault this time with a Clustering issue. I am trying to create a MSDTC role for my Windows 2012 R2 Cluster. The IP address and disk start up fine, but when the name A06SQLX-DTC tries…
Craig Efrein
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