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14 views

PostgreSQL replication techniques

I pretend to install a HA postgres 9.3 cluster, as far as I see here there are a lot of options. I count with hardware to support shared disk or distributed file systems but as far as I see using ...
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0answers
13 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 ...
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0answers
11 views

Unable to create Hyper-V VM on SMB share

I'm trying to create a VM on Hyper-V 2012 R2 server and I'm getting this error: The server encountered an error while creating VMNAME The Operation failed Failed to create external configuration ...
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0answers
29 views

Get-Cluster cmdlet fails when using -Name param

Summary When I call Get-Cluster powershell returns the name of my cluster. For simplicity sake, lets call it Cluster1. If I call Get-Cluster -Name Cluster1 it fails with an error. Error: ...
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0answers
25 views

VM Automatically Restart

Issue Detail: After 4 Days of Vacation’s when I back to office and going to check my VM I found that one of my VM is on restarted state. We have following scenario. We have 3 HOST with failover ...
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1answer
57 views

High Availability/Failover hardware hookup

I'm learning about clustering and high availability techniques, and stumbled upon an article about configuring a network with a pair of servers, using DRBD for replication and heartbeat for monitoring ...
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0answers
14 views

How to Identify disk in Windows Server 2012 R2 Failover Cluster?

I'm following this manual to create Hyper-V failover cluster. I'm using FC SAN Storage Array Disks as shared storage. During cluster creation three shared disk where available to nodes and was added ...
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0answers
24 views

SAN Storage Array in Hyper-V 2012R2 Failover Cluster - outdated file table info?

We have Dell MD3600f SAN storage array and two HP servers for VM failover clustering solution. MD3600f is set, disks are mapped and connected to Hyper-V servers. On Hyper-V's I have partitioned and ...
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1answer
25 views

How to run validate cluster test without taking cluster offline?

I'm trying to run "Validate a Cluster" wizard but when I selected Run all test it gave a warning that running storage test will result in role failure. What test can I run in Run only tests I select ...
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3answers
67 views

Split a Scope Linux<=>Windows

Is it possible to create a DHCP Failover Cluster between a Linux(Ubuntu) based server and a Windows Server 2012R2 based server. My idea was to include a new data into the dhcp.conf data to exclude a ...
0
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1answer
45 views

Avoiding a Single Point of Failure with link aggregation

I have a requirement for a system with no Single Point of Failure. The client have offered two Ethernet cables per server. Each of the servers will connect into their network, however I want to ...
0
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1answer
47 views

What happens when Core Cluster Group is failed over to another node? Will it take the whole cluster down? Single point of failure?

http://bit.ly/1lKJFIa "Cluster group" fail-over will cause cluster go offline. Really? Single point of failure? Am I missing something? What happens when Core Cluster resources (Cluster Group) are ...
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1answer
128 views

What are the options for a HA system?

I'm looking into creating a HA Linux machine for my client's website. What are the main options I have, or a place/article where I can find out more? I would LOVE if it was a single-image, too, so ...
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1answer
37 views

Is MOSIX the easiest way to build a redundant system?

I'm trying to figure out the easiest way to build a server with HA. I looked into Linux-HA, Heartbeat, Mesos. I then found MOSIX. I don't know if it's a thing from the past that no one uses, but ...
0
votes
1answer
34 views

Extract Summary property from VMM with PowerShell

I have a Windows Server 2008R2 running SCVMM 2012. I successfully removed a virtual machine, according to the Jobs output from VMM, as seen in this screenshot. As you can see, the VM has a red ...
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0answers
38 views

Creating file server failover cluster

I'm in the process of setting up a new file server cluster with a shared iSCSI disk. I've been through the setup of iSCSI and MPIO and the disk has been initialized, formatted and brought online. ...
3
votes
1answer
53 views

How can I verify whether a Windows cluster has previously been successfully validated?

As part of an automated SQL Server installation process, I'd like to programmatically check whether a Windows Failover Cluster has already been validated. There are some ways to validate the cluster ...
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0answers
31 views

Windows 2003 Cluster IP Conflict during failover. Possible Spilt Brain Syndrome?

I would like to ask if anyone had a case of IP Conflict on the Virtual Cluster IP Address resource occur ? It was observed that both Windows cluster nodes presented the Virtual IP address resource ...
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1answer
27 views

Is it possible to set up load balancing and failover simultaneously?

Suppose I have two ColdFusion servers(different machines) running the same application. Now I am bit confused between load balancing and failover techniques. As per my knowledge, FailOver Cluster: ...
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1answer
98 views

Does ColdFusion single server clustering using multiple instances provides any performance enhancement?

I have few doubts regarding Coldfusion clustering. Is there any benefits of Creating multiple instances of a single ColdFusion server, Create a cluster by adding those instances and host the ...
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1answer
192 views

How to set up cluster with SESSION replication in Coldfusion 10?

I am not able to set up a cluster with session replication. I have successfully set up a cluster with sticky session. When googled I found a lot of links explaining the same issue, like ...
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3answers
1k views

Dell VRTX - slow cluster shared storage

I have a brand new Dell VRTX box set up as a Failover Cluster running HA Hyper-V virtual machines. This is my first time setting up clustering, and my first time with one of these boxes, so I'm sure ...
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1answer
102 views

How to make Nginx fire 504 immediately is 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 ...
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0answers
60 views

Got “page isn't redirecting properly” issue In mod_jk clustering

I have installed two jboss AS 7 servers on two different machines and i start these two by switching standalone-ha.xml configuration. Also i installed an apache httpd server in one of theses machine ...
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1answer
237 views

IIS Shared Configuration Share for Cluster FTP Service on Server 2008 R2

Microsoft gives the following order for setting up the Clustered FTP (after installing IIS, FTP Service, and setting up your Cluster): Set up a file share that will be used for IIS Shared ...
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1answer
60 views

MSTDC in SQL Server 2012 - Windows Server 2012 R2 with high availability

We had implemented SQL Server High Availability on two physical servers over the VPN network. SQL Server 2012, Windows Server 2012 R2. It was noted that, Distributed Transaction was working perfectly ...
1
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1answer
2k views

How to delete a Virtual Machine from Hyper-V Failover Cluster

I have a Hyper-V 2008 R2 failover cluster with 3 nodes. I added new 3 Virtual Machines to the failover clusters, one of them failed with errors: Event ID: 1069 Cluster resource 'Virtual Machine ...
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2answers
111 views

When to employ server failover in a virtual environment

This question kind of got me thinking about fault tolerance in DHCP, so I did a little digging in my current environment and discovered that we only have 1 DHCP server per major site in our company ...
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0answers
50 views

Getting the DB2 Resource online in Failover Cluster

I'm using DB2 10.1 Enterprise Server Edition on Windows Server 2012 R2 After adding the DB2 resource to the cluster using the db2wolfi command, I go to the resources tab which is in the cluster ...
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0answers
194 views

SQL2008 R2 BackupDirectory - Cannot access the specified path or file on the server

I've recently added extra SAN storage space to our SQL2008R2 server (Failover Cluster with 2 nodes). With that I've edited the follow registry entry from I: to K: and moved the existing backup folders ...
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3answers
77 views

Is it possible to Migrate Live VMs from a Windows 2012 Hyper-V Cluster to a different 2012 R2 Cluster?

At the moment I'm in a bit of dilemma because I know that Windows 2012 supports "Shared Nothing Live Migration" but recently I got to know that this feature is available for stand alone Hyper-V ...
0
votes
1answer
76 views

How can I quickly relocate an entire virtual machine to a new location?

We are using Hyper-V in a clustered Server 2008 R2 environment with 3 identical hosts. Virtual machines are stored on cluster shared volumes (CSV's) on a SAN backend connected via iSCSI. What is the ...
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0answers
275 views

Cluster Shared Volumes offlining under excessive use

I am trying to understand (and ideally fix) a particularly annoying phenomenon I've noticed with Failover Clustering and Cluster Shared Volumes in conjunction with Hyper-V. It appears that under high ...
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0answers
103 views

Cannot sent messages to Clustered MSMQ resource using NAT IP address

I'm running MSMQ as a clustered resource on a Windows Failover Cluster. We want to send messages to the queue over HTTP using a NAT IP Address for the queue. On a non clustered environment, this ...
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1answer
913 views

Windows Server 2008 R2 cluster, MSDTC issue

We recently installed MS Windows Server 2008 R2 EE on two physical IBM System x3550 M4 server and this cluster hosts Biztalk resources on it. MSDTC was configured prior to Biztalk resource were added ...
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2answers
574 views

Starting a service in a corosync pacemaker failover cluster

first off all my setup 2 VM running Fedora 19 in a pacemaker/corosync failover cluster, they have 1 cluster IP 1 VM running Fedora 19 monitoring both VM's with nagios Right now nagios is running on ...
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0answers
172 views

Exchange 2013 DAG Cluster Errors on non-owner node (eventid 1231)

We have a simple 2 node DAG setup with the nodes in 2 different sites. The DAG seems to be working fine, with mailbox databases moving back and forth between servers on-demand without issue. Seeding ...
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1answer
784 views

Can't start VM on Hyper-V 2008R2 cluster

I have a Server 2008R2 Hyper-V cluster with 2 nodes. They use a CSV on a SAN. I use SCVMM to manage them. We recently had several crashes that caused a failover, making virtual machines die and ...
1
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1answer
190 views

How can I speed up automatic failover of a Hyper-V 2012 cluster?

When I first setup a 2-node Hyper-V 2012 cluster, the failover was pretty much instant. I had a Sql Server 2012 (on Win2012) VM with 8GB RAM allocated to it. I could bounce the node it was living on, ...
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0answers
379 views

windows2012 failover cluster + storage. Considerations

We plan to build a failover storage with Windows2012r2. There will be 2 or 3 physical machines with 2 virtual machines on each server. One virtual machine building a failover, second one being storage ...
0
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2answers
77 views

Windows Sever 2012 failover clustering: difference in max number of virtual and physical nodes

As far as I know there is a following limitation for maximum number of nodes in Windows Server 2012 failover clustering: 4,000 VM nodes or 64 physical nodes. Apart from apparent difficulties / ...
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0answers
439 views

SQL Failover Cluster Resource DNS Registration Failure

I've got a cluster I migrated from one location to another (new IPs). I've moved a few other clusters like this recently with no issues. This recent cluster all came up fine except one 2012 instance. ...
0
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1answer
158 views

Is there some kind of load balancing happening in a Hyper v fail over cluster?

I am still reading up on Hyper V clustering and there is something fundamental I am not understanding. Windows Fail-over Clustering is supposed to be for high availability only- not load balancing. ...
0
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2answers
236 views

windows 2012 failover cluster, system validation, and storage spaces

I have two host servers with Windows 2012 Hyper-V installed. I have also configured File and Storage Services with one Storage Pool, one Virtual Disk on each server. I used Star Wind SAN for Hyper-V ...
3
votes
1answer
566 views

Does dynamic quorum with Windows Server 2012 clusters make quorum configuration types irrelevant?

There are several quorum types: Node Majority,Node and Disk Majority,Node and File Share Majority,No Majority: Disk Only I did not modify any quorum settings when setting up a Server 2012 R2 cluster ...
0
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1answer
130 views

Change network used by cluster traffic types with powershell

I was reading this technet blog post about Windows HA cluster traffic types. It explains how to change the metrics of cluster traffic types with the cmdlets, but for settings like “Allow cluster ...
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votes
2answers
217 views

Hyper-V File Server Clustering - at my wit’s end [duplicate]

I am at my wit’s end with File Server clustering under Hyper-V. I am hoping that someone might be able to help me figure out this Gordian Knot of a technology that seems to have dead ends (like ...
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3answers
352 views

make scheduled task active/passive cluster aware

I have 2 nodes using win server 2008 r2 in my active/passive cluster setup. They have the same set of scheduled tasks and i want them to run only when the node is active. Does Windows support ...
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0answers
44 views

SQL Failover Cluster IP Migration

I have a four node cluster setup which I need to migrate from subnet A to subnet B. The cluster has roughly 12 instances running on it. I've found articles to update the SQL Cluster IP, but I've got ...
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1answer
100 views

Why clustered windows service doesn't authenticate to share with machine name when share is resident on same node of cluster

I have a windows 2012 failover cluster set up with multiple roles, one file share role, and another a generic role for hosting Generic windows services configured to logon as Network Service. The ...