Questions tagged [failovercluster]

Microsoft Failover Clusters

A failover cluster is a group of independent computers that work together to increase the availability and scalability of clustered roles (formerly called clustered applications and services). 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. Failover clusters also provide Cluster Shared Volume (CSV) functionality that provides a consistent, distributed namespace that clustered roles can use to access shared storage from all nodes. With the Failover Clustering feature, users experience a minimum of disruptions in service. You can manage failover clusters by using the Failover Cluster Manager snap-in and the Failover Clustering Windows PowerShell cmdlets. You can also use the tools in File and Storage Services to manage file shares on file server clusters.

Feature Description Reference - Failover Clustering Overview -

Some Resources for Windows 2008 R2 & Windows 2012 R2 -

Failover Cluster Provider Reference MSDN -

Failover Cluster Cmdlet Reference [PowerShell] - - https://technet.microsoft.com/en-us/library/ee461009.aspx

Cluster Object Private Properties Reference MSDN -

WUtils MSCluster WMI Samples -

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Avoid loosing Session and ViewState data with Glassfish clustering in a JSF application

We are using this configuration in our clustered application : glassfish-web.xml :
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Active-Active high availability design for Windows messaging service?

I'm trying to figure out what's the best way to design a active-active cluster that uses a replicated database. For network load balancing and failover, I can use Windows NLB. For database, I can use MySQL which can do master-master replication out…
Joshua
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What is best practice for SQL Server failover cluster database access tier?

In principle an SQL Server failover cluster presents itself as a virtual machine that applications can connect to oblivious to the fact that the SQL Server is actually a cluster of servers, hence, in principle no additional logic is required within…
redcalx
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Using DiskVolumeInfo (Cluster Failover API)

I found the DiskVolumeInfo property -- I'd like to use it to get some disk information in a clustered setup. http://msdn.microsoft.com/en-us/library/windows/desktop/bb309235(v=vs.85).aspx The problem is I have no idea what technology is required to…
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Glassfish 3.1.1 cluster load balancing apache mod_jk windows 7 x64

I am using the following configuration: Glassfish 3.1.1 (zip version), apache 2.2.22, mod_jk 1.2.32 and Windows 7 x64. I've got 2 physical machines. On the 1st machine there is DAS, instance 1 of Glassfish, apache with mod_jk. On the second machine…
Nurjan
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Load balancing OR Failover servers for .net application

Scenario I have service written in c#.net. Now on my production environment I want this service to be on 2 different servers for Loadbalancing or failover of one of the server. So for instance if one server dies the service keeps running on the…
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TimescaleDB multinode cluster & replication factor

I have been working on timescaleDB multi-node concept, In my case I have an access node, and four data node. When I created the distributed hyper table I have set replication factor to four. adding data node SELECT add_data_node('dn1', host =>…
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Why does my SQL Server cluster execute "SELECT @@SERVERNAME" every minute?

When I run a Profiler trace on our SQL Server cluster, I've noticed that it executes "SELECT @@SERVERNAME" every minute. I always figured the Failover Cluster service did something with it, or just used it to confirm that the network name and IP…
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How to avoid having to restart Delphi 32-bit application after it fails with a "memory allocation failure" on Database failover?

A Delphi 32-bit application fails with errors randomly "Error: the database connection was lost.An existing connection was forcibly closed by the remote host " or "Error Code: -2147024882 memory allocation failure" on Database failover. Application…
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Unable to retrieve results of WSFC FailoverCluster Powershell Module executed via C#

Since there is no integrated methods or APIs to access WindowsServerFailoverCluster features, I'm attempting to launch some PowerShell cmdlets to ascertain WSFC's status and return it to C# (healthcheck purposes) This works as a smoke test and…
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ARP Response from Virtual / Cluster IP Address

I have a specialised hardware which is configured to communicate to a single IP address. But I want to communicate with 2 servers for SQL Server Availability Group(Both are Replicas to each other), So I make a cluster of 2 Servers (Windows…
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IIS Manager does not write logs to a shared storage as part of a Failover cluster

I have a hosts say (b and c) as part of a failover cluster with SAN (d) and DNS/DC (a). The config for IIS is stored in a SAN \\d\config. Similarly, the logs for the IIS is stored at \\d\iis_logs\. I have one website W3SVC1. So, the log directory…
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Trying to understand networks in Failover Clustering for Windows Server 2016

I am trying to learn failover clustering from videos from CBT Nuggets but I have question that I hope can be answered. Shown below is the link to the image of the three networks used in the F/O Cluster. CL1-NUG and CL2-NUG are the cluster nodes,…
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Adding a new node to an existing SQL cluster

I am new to fail-over clustering, I have a two node Windows fail-over cluster (windows server 2016) with SQL Server 2016 Installed in cluster mode which configured successfully and everything is working fine. I needed to configure an Always-On…
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Delete snapshots from cluster

Delete snapshots from cluster - short of automation I have created string to delete snapshot but looking it to modify so that it it will run on task scheduler without any prompt and in sequence way Here I am manually deleting 2 days older…
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