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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3 answers
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Synology HA active-passive performance and failover

I have two Synology boxes (DiskStation DS1817+) that are running in Synology HA mode filled with WD Black 4TB drives in RAID10. They are connected to my cluster over iSCSI providing mainly backup ...
3 votes
2 answers
2k views

Failover Cluster Perfmon Counter

On my Win2008 R2 clusters there is a performance counter called Cluster Multicast Request-Response Messages\Messages Outstanding. Solarwinds includes it as a monitor on their Failover Clustering ...
2 votes
1 answer
48 views

failover management in ubuntu16.04 server

I have two ubuntu 16.04 servers in a vpn. first server is an application server which contains a php,mysql and a windows virtual machine. i need to implement the second server as a failover for my ...
2 votes
1 answer
3k views

C:\Windows\System32\Config\systemprofile\desktop is unavailable

We are trying to set up Always On Availability Groups for SQL Server 2014 and we began with creating a cluster between two SQL Servers. Everything went fine until validating cluster creation and ...
0 votes
1 answer
135 views

Pacemaker Cluster Issue - Backup Firewall does not take over in case network cable unplugged from Primary Firewall

I have an issue with pacemaker cluster. I have two firewalls that I am using in Active/ Backup HA. The heartbeat IPs are 10.0.0.1 (FW 1) & 10.0.0.2 (FW 2) on a dedicated network. Traffic IPs on ...
0 votes
1 answer
994 views

Issue with shadow copies in 2012 R2 file server cluster

I have recently created a 2012 R2 file server cluster, and am trying to enable shadow copies. When I right click the drive containing user data within the failover cluster manager, and click ...
1 vote
0 answers
88 views

SQL 2016 clustering, creating and failover

I'm a application manager, and I had my application wizard create a SQL database on the clustername, not on one of the two nodes of the cluster, but on the clustername. Now a week later, my ...
2 votes
2 answers
242 views

Cluster Hyper-V Environment Failure

We have a two host fiber (NIC Team) and copper (Nic Team2) environment. The hosts are clustered and use 2012-R2 Standard (updated) with Hyper-V Clustering and storage pools. The VMs are around 50 ...
1 vote
0 answers
781 views

Windows Failover Cluster node in Azure - Assigning a cluster IP address

I've built a 2-node Windows Server 2012 R2 failover cluster, one node being in my on-premises network and one being an Azure (Resource Manager deployment model), in part following this MS article In ...
1 vote
0 answers
461 views

Unable to add share to 2012 R2 file server cluster - Role name not found

I am trying to set up a proof of concept file server cluster to ensure it will meet our needs before we implement a live cluster. I have setup a cluster of two nodes, with 2 networks (one for cluster ...
2 votes
0 answers
59 views

Using Windows failover cluster role TCP address for application

I have a 2 node Windows 2012 R2 guest failover cluster built as a generic service (say 192.168.1.1 and 192.168.1.2 are node 1 and node 2 static IP's). The generic service role IP is 192.168.1.100. ...
12 votes
3 answers
11k views

VMXNET3 receive buffer sizing and memory usage

Background We had an incident where a Windows failover cluster suffered an interruption. A post-mortem showed that the node was "removed" as described in this article. We've only recently migrated ...
0 votes
1 answer
952 views

architecture for no fail request with keepalived

I have a local cluster of 3 CentOs servers, I've installed Keepalived on each server, Then I run some benchmark tests with ab like this : ab -c 1000 -n 100000 -r host Then in the middle of benchmark ...
1 vote
1 answer
231 views

Failover cluster, what happens on add new web site

I have no experience in failover cluster area. I am building system for users that create new ftp site (currently Windows FTP). What I am thinking of is calculating server usage and choose server with ...
0 votes
1 answer
367 views

mongodb with microsoft failover cluster

im required to install mongodb in a microsoft windows 2012r2 server in a failover cluster mode. does mongodb supports that as microsoft sql do? if the answer is yes, can you point mo to a guide please?...
1 vote
0 answers
3k views

Network Connectivity of Windows Failover Servers

I have two servers running Windows Server 2016 with the Failover Cluster role, each of which is running as a Hyper-V virtual machine on a different host. The servers are on the same subnet and are ...
0 votes
1 answer
1k views

SCOM 2012 not identifying virtual servers in cluster

I have imported the Windows 2008 and 2012 Cluster Management libraries, installed the agent on both cluster nodes, and checked the box to enable them as proxies. Both nodes show up as healthy, and ...
5 votes
2 answers
174 views

Nano Server attached to SAN doesn't see new files

I have recently provisioned two servers that are attached to a Lenovo S3200 with fibre channel. These are the only two servers attached. The servers are running Windows 2016 Nano, and I have installed ...
1 vote
1 answer
231 views

Which technology allows shared storage for clusters with preferred local reads and writes?

I have two or three somewhat older servers of type HP ProLiant DL380 G6/7 with only x * 1 GBit Ethernet, but quite some CPU power, RAM and capable of a fair amount of local storage. I'm interested in ...
5 votes
1 answer
980 views

Creating a two-node Hyper-V failover cluster with a SAN

I'm new to failover clustering and looking for verification that my oversimplified steps below are appropriate as a starting point. I have two Dell R430s (Windows Server 2012 R2 Enterprise) that will ...
2 votes
1 answer
10k views

Best Way to Restart 2 Node SQL Cluster To Perform Windows Updates?

So I have a 2 node MS SQL Server cluster, using AlwaysOn, on Windows 2012 r2. SQL1 is the primary. SQL2 is the secondary. I want to restart both servers today to perform windows updates which will ...
0 votes
1 answer
15k views

The computer object associated with the resource could not be updated in domain

After a few hours of unsuccessfull Googling and scouring all over the Internet, I have to go back to my good old friend at StackExchange. My problem is associated with a dissfuctional Microsoft ...
1 vote
1 answer
5k views

MS SQL 2016 AlwaysOn cluster on Win2012R2 - AGs failover if File Share Witness is down

Our current setup includes: eight (8) Windows 2012 R2 nodes in single Failover Cluster, no shared storage, File Share Witness (on DC) MS SQL 2016 AlwaysOn with a few AG groups default 'If resource ...
5 votes
1 answer
4k views

Microsoft iSCSI target server 2016 failover cluster doesn't work in Server Manager after transfering roles

I have a pair of Server 2016 VMs in a failover cluster running the File Server and iSCSI Target Server roles. Previously each role was separately defined in the Failover Cluster Manager, but due a ...
2 votes
1 answer
179 views

FCM not loading Properties for configured Hyper-V shares

Have 3 nodes 2 of which are part of a hyper-v cluster. Many moons ago I configured network shares within FCM, for the last few days when attempting to select properties for specific shares it displays ...
4 votes
1 answer
8k views

How to use Docker with HAProxy+Keepalived?

I want to practise in creation of high-available web-application using multiple Docker containers on one machine. I launch several web-servers within Docker containers. Say, three servers rest1, ...
0 votes
1 answer
971 views

Will the Remove action in Failover Cluster Manager 2012 R2 result in lost data on my LUN?

The most specific answer I've come across for Removing an Offline and Available Storage cluster disk in Failover Cluster Manager 2012 R2 is on this site. It's about 2yrs old. I'm new to HyperV and ...
0 votes
1 answer
3k views

How to manage failover in ZooKeeper across datacenters using observers

I have an application running in 3 different datacenters that uses ZooKeeper for many tasks. Following the recommended practices, we have deployed three ZooKeeper ensembles where one datacenter ...
3 votes
1 answer
186 views

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 ...
3 votes
2 answers
19k views

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 ...
0 votes
1 answer
1k views

Windows server 2012 failover cluster replace shared disk

We have cluster of 2 nodes (Windows Server 2012) with file server role. There is resource group configured under cluster which have multiple shared disks. As one of the disk is having file system ...
1 vote
2 answers
3k views

Windows 2012 R2 Cluster - network adapter failure

I have windows cluster (2012 R2) with 2 nodes with role of generic services. In case when I shutdown/reboot live node services on the standby node are starting automatically however it dosn't work if ...
-1 votes
1 answer
402 views

Making debian 8.5 two node failover cluster [closed]

I am new here so take good care of me. I want to make failover cluster out of 2 debian 8.5 servers with mysql database. I need that both of them work on one ip (virtual). Can you suggest what ...
2 votes
1 answer
1k views

Install optional updates using Cluster-Aware Updating

The question is simple - how can I install updates listed as "optional" in Windows Update using the Cluster-Aware Updating feature in Windows Server Failover Cluster? I installed all the important ...
0 votes
1 answer
2k views

Can a Failover Cluster CSV volume be owned by two clusters during the upgrade process?

We have a 2-node Hyper-V failover cluster running Windows Server 2012 (R1) with about 60 virtual machines running; upgrading to Windows Server 2016 RTM. Since we aren't on 2012R2, we can't use the ...
0 votes
2 answers
3k views

Resolve DNS command returns different IP addresses

I have a failover cluster with two nodes. Both machines are ESXi VM with two network adapters: first one public and the second one is private. When I trying to resolve DNS name for any of node I ...
2 votes
2 answers
226 views

Create a Cluster Shared Volume with 3 Servers

I'm new to Failover Cluster and everthing that has to do with it. At the moment I have two Hyper-V hosts connected to a VLAN and a third server which I would like to use as a file server so the VMs ...
3 votes
3 answers
2k views

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 ...
0 votes
1 answer
908 views

3 node cluster with crossover cables

We have a windows failover cluster running Windows 2012 R2 for Hyper-V. Our storage is using Storage Spaces with a SAS3 JBOD. As such, we see IO transfers hitting 2800 MBps. Our networking is still ...
1 vote
1 answer
155 views

Hyper-V - Upgrading a 3 node 2008R2 cluster to 2012R2

I'm just after a some advice/tips on upgrading our 3 node Hyper-V cluster from 2008R2 to 2012R2. I have 3 x Dell r710s running Server 2008R2DC. These are clustered and running about 15 VMs (5 on each ...
5 votes
4 answers
30k views

Failover cluster failed to failover due to mysterious IP conflict?

I'm having a mysterious problem with my Failover cluster, Cluster name: PrintCluster01.domain.com Members: PrintServer01.domain.com andPrintServer02.domain.com in the Failover Cluster Management – ...
0 votes
1 answer
41 views

Bridging host-only subnet on multiple Dom0s

I currently have two XEN-Hosts running a set of virtual machines. These machines can communicate with each other via a host-only network. I want to be able to move virtual machines between both ...
0 votes
0 answers
154 views

Can Failover Clustering in WIndows be set-up on Google Compute?

My understanding is that a Windows Failover Cluster node must be multihomed and that GCE Instances cannot be multihomed. Is this the case, please?
0 votes
1 answer
1k views

Maximum Timer for Drain Roles?

This is one of those weird questions I would expect to be documented (Especially on Tech Net), but I honestly haven't found an actual explanation. As of Server 2012 R2 you can set your cluster nodes ...
0 votes
1 answer
820 views

failover cluster creation Error

I am creating a fail over cluster, but doing so i get the error "An error occurred while creating the cluster. An error occurred creating cluster 'testCluster'. This operation returned because the ...
4 votes
3 answers
771 views

How does CSV cache behave under memory load?

We're looking at using Microsoft's CSV cache feature in our new Hyper-V 2012 R2 clusters: It's enabled by default, with 512MB allocated to each CSV. The maximum memory that can be assigned is 80%. ...
5 votes
1 answer
4k views

Get witness disk current vote via PowerShell

I am trying to verify functionality of dynamic quorum in a new failover cluster setup. Is there a command in PowerShell that I can use to see the current vote for the witness disk? I have been ...
2 votes
1 answer
1k views

I do not see disks while building a Scale-Out File Server on Windows Server 2012 R2

Following are my environment details I have created 2 virtual machines in Azure. node 01 and node 02 Both machines are using windows server 2012 R2 Attached disks for node 01 and node 02 Added node ...
0 votes
0 answers
28 views

Server 2012 R2 - Sharing 'cluster shared volume' .VHDX hard drives between two VMs, are they supposed to not live update? [duplicate]

I have a .VHDX volume that's a cluster shared volume in a Server 2012 R2 failover cluster. I'm able to share the hard drive between two VMs. If I create a folder on VM2, it doesn't show in VM1 in the ...
0 votes
1 answer
1k views

Proxmox HA Cluster tiebreaker node

I want to setup a Proxmox HA Cluster using a quorum for reducing the risk for a split-brain. So I need 3 nodes. Is it possible for one of the nodes to just act as a tiebreaker node without running any ...

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