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1
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1answer
340 views

Exchange 2007 CCR: Logs not replicating to passive node partition

In my environment I have setup Exchange 2007 in an CCR cluster, mirroring our main servers to a set of servers in passive mode. One of the partitions on the passive node that I have setup for the logs ...
6
votes
7answers
473 views

High availability virtual machines

I've been reading a lot about high availability virtualization, either via Hyper-V or VMWare. In that context, essentially high availability means that the VM is hosted by a cluster of physical ...
2
votes
2answers
1k views

Performance of Cluster Shared Volume file copy from SAN

I am hoping someone can help me out with a strange issue. We are running a Microsoft Failover Cluster with Server 2008 R2 and an Equallogic PS4000 SAN. Our main configuration has 2 Dell Poweredge ...
0
votes
1answer
457 views

Unable to connect to SQL Failover Cluster

I have a a SQL Server 2005 Failover Cluster with two nodes. Node A & Node B. SQL is running on Node B. About 2 weeks ago, we failed over to Node A. Then after the problem was corrected, we ...
0
votes
2answers
8k views

Windows Server 2012 HA Cluster Shared Volume “Online (No Access)”

We have a Hyper-V 3.0 Failover Cluster (2 servers) each running Windows Server 2012 RC. We have Shared Storage (HP P4300) which is reporting no errors and is working just fine as either a standalone ...
2
votes
1answer
714 views

SQL Server 2012 Mirroring / AlwaysOn - need for SAN?

There appears to be a great deal of conflicting information about whether or not SAN is required for a Sql Server 2012 Mirroring setup. I currently have an Active-Passive-Witness SQL 2008R2 setup ...
0
votes
1answer
177 views

How can I get all resources that of a particular resource type using cluster.exe?

On a Windows failover cluster environment, we can use the command cluster resourcetype to get all available resource types. My question is, how can I get all the resources that is belong to this ...
1
vote
1answer
414 views

Clustering MSDTC on windows Server 2008 R2 returns “No storage Available”

I've set up a failover cluster, with SQL Server 2008r2, and it is running fine. I want to cluster MSDTC as well, but when I go through the high availability wizard, it tells me that there is no ...
3
votes
1answer
3k views

Active/Active vs Active/Passive cluster

First time setting up a clustered environment, and have a few questions. From a windows cluster perspective what determines if it is an Active/Active cluster vs an Active/Passive cluster? Is it the ...
0
votes
1answer
121 views

Building Windows Failover clusters, re-use quorum drives?

I'm building a series of virtual failover clusters, 2 for SQL, and 1 for BizTalk. Being that it is a Proof of concept virtual setup with no real expectations around high availability, is it possible ...
0
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1answer
357 views

Windows 2008R2 two node failover cluster creation fails

We have just installed two Windows 2008R2 Enterprise machines with identical hardware. When running the cluster validation everything is ok. When creating the cluster it fails with the following ...
2
votes
0answers
191 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 ...
0
votes
4answers
2k views

What are the ways to build a failover cluster?

I have a task where I need to build a failover cluster in two cases: first with servers on Red Hat Enterprise 5.1 and second with SUSE Linux Enterprise 11 SP1. Both cases have SAN. I know there are ...
1
vote
1answer
3k views

Quorum Disk size for Windows 2008R2 failover

I am setting up a two node failover cluster for SQL Server 2008 R2 on Windows Server 2008 R2. Microsoft recommends minimum 512MB size LUN for the quorum disk and don't have a recommendation for the ...
8
votes
1answer
999 views

How Does Failover Clustering Work in Windows 2008 R2?

I am trying to learn how the failover clustering features works with Windows 2008 R2 as I am going to be using as part of SQL Server 2012 always on. I have been able to find information on how to set ...
1
vote
1answer
503 views

What's the right way to shutdown a SQL Server 2008 R2 cluster?

I'm new to SQL Server 2008 R2 cluster. I just created a test environment now I need to shut it down. I know SQL Server cluster is a high availability solution so there is seldom mentioned that how to ...
4
votes
1answer
1k views

SQL Server 2008 R2 cluster, “available storage” shows “offline”

I've installed a SQL Server 2008 R2 cluster and I found the resource group "available storage" shows "offline" status. What does it mean? It seems I can't take it online. I tried to use the cluster ...
1
vote
1answer
146 views

SQL Server 2008 R2 cluster installation, can I install on the 2 nodes at the same time?

I've configured the Windows cluster, now I need to install SQL Server on the 2 nodes. To save time, I want to know if I can install on the 2 nodes at the same time? Thanks
-3
votes
3answers
708 views

How to failover to another web service automatically?

I've got a 3rd party off-the-shelf windows application that needs to connect to a Web Service (IP address or URL) installed onto another server (actually running on Windows 7 Professional). My user ...
1
vote
1answer
1k views

How do you setup a virtual IP on a Linux cluster?

I am having some problems setting a virtual IP and Linux (Ubuntu) cluster and I am hoping someone can help. This is the first node cluster I've tried to setup and I am not finding many resources in ...
2
votes
1answer
336 views

Windows Failover Cluster is registering as a domain controller

I have a few services that run as a Failover Cluster. At the moment, all the members of the cluster are domain controllers, but that may not always be the case in the future. The issue I have is that ...
0
votes
3answers
289 views

“Virtual” shared storage for SQL Server 2008 R2 Cluster

I am trying to set up a virtual test environment for a SQL Server 2008 R2 Cluster (2 nodes) running on Hyper-V. The cluster requires a shared storage to function properly, however in this test ...
3
votes
3answers
477 views

VLAN connections in Windows 2008 Failover Cluster

We are using Windows 2008 Failover Cluster for our iSCSI SAN system. There are two nodes which have 3 nics on each. Normally, these nics are working as heartbeat, LAN and iSCSI connection to SAN. The ...
4
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3answers
2k views

Should the SAN (Dell MD3200) management port be on the same subnet/VLAN as the failover cluster private subnet/VLAN?

So, I'm getting a bit confused here. I have a Dell MD3200 SAN with dual controllers. Each controller has an Ethernet management port that connects to a switch. Together the two controllers connect to ...
1
vote
3answers
795 views

Cloud Storage as a File Share Witness?

Does anyone know if there is a service out there that can be used as a file share witness for a Windows Server 2008 R2 Failover Cluster File share witness? I have a two-node cluster but no good place ...
-1
votes
2answers
1k views

corosync active-active with 2 virtual IPs - clone constraints task

I have DNS roundrobin on 2 virtual IP in front of service. (Among others the service tested was: apache, nginx, varnish, postfix, … It really does not matter. Let's call it just service.) I ...
2
votes
2answers
438 views

Query another cluster group from SQL server?

Is there a way to query from SQL Server in TSQL which node is active in another cluster group in the same cluster? I have a cluster with two cluster groups, one with resources for SQL Server, one ...
0
votes
1answer
51 views

Advanced SQL Setup

Got a major issue that I need some help with. Here is the situation. The client has multiple web sites hosted on multiple web servers (virtual machines) running on multiple virtual hosts that ...
1
vote
2answers
449 views

Convert HyperV Servers in to HyperV Cluster

We have 2 Hyperv Servers and a SAN. When they were configured, High Availability wasn't on the horizon. But it is now. Can I convert the current servers in place to use Failover Clustering? Or ...
0
votes
1answer
389 views

NTFS permissions for a user on another computer in case of a disk moving in a cluster?

Is there a way to set NTFS permissions for a user on another computer? I have two nodes in a failover cluster. Both have a specific user account ("charley") local to the node. Charley has files on a ...
2
votes
4answers
3k views

linux + create simple watch dog process in shell script

I need to create watch dog process (will run in linux version 5.x) that look all time on /etc/cluster.cf file And if the process matches the string: machineA_is_active in the cluster.cf file Then ...
1
vote
1answer
221 views

Remotely connecting to hyper-v hosts from another host in the same cluster sometimes shows red error

We have a hyper-v host cluster with relatively new hardware. The hosts and the VMs on them all work good, except when I connect to any hyper-v host from another host in the same cluster (remotely ...
0
votes
1answer
291 views

Is it possible to use iscsi to create a red hat cluster?

I have a netapp fast 2xxx with iscsi support, with 2 san switches. Is it possible to use one iscsi lun with cluster purposes? The idea is to create a clustered service which needs storage, the ...
3
votes
2answers
1k views

Windows Cluster Fails after Power Outage

First, we have a Windows 2008 R2 Two Node cluster running HA Hyper-V and DHCP. We utilize a back-end Dell MD3000i iSCSI SAN for storage. All of the networking is done via redundant switches and MPIO ...
1
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3answers
2k views

SQL Server 2008 R2 Clustering inside VMware

I am working on a new Windows 2008 R2 / SQL Server R2 HA cluster and we are planning on running this inside of VMware ESX 5. I have read and heard differing views on using SQL clustering inside of ...
3
votes
1answer
3k views

Setting up an Active-Active IIS Cluster with ARR - is it possible?

I would like to know if we can setup an Active-Active IIS Cluster using Windows Cluster services that shares a common storage to store web content and WITHOUT the use of Windows NLB. I'm aware that ...
0
votes
1answer
136 views

Load Balancing & Windows Failover Cluster 2008 r2

I have a windows service that I would like to load balance and failover. I have had a quick play with the failover cluster manager and it seems I can only have one active node with n inactive ...
0
votes
2answers
527 views

How to achieve high availability with MySQL cluster?

This question is not about how to install the servers nor its capabilities, but more of a design question. So I have a cluster of MySQL servers. I also have a DNS record "data.example.com". The ...
3
votes
1answer
746 views

cisco asa reloading

After having both memory and code upgrades, we have a significant number of our asa 5520's (in active/standby pairs) develop problems. The problem manifests itself as losing connectivity to the other ...
0
votes
1answer
73 views

Redundance for different processes running on the same server

We have a system consisting of different components/services like database, webserver, fileshare, some self programmed daemons, etc. We now have the requirement to make all components/services ...
0
votes
2answers
4k views

Failover Cluster: No disks suitable for cluster disks were found

I am trying to setup a failover cluster with two nodes. After running the validation tests, the storage sections had many warnings. The next step after creating the cluster with two nodes on the same ...
0
votes
1answer
373 views

SQL 2008 R2 Active/Active/Passive Cluster Does Not Allow Linked Servers Both Ways

We are designing an active/active/passive failover cluster using SQL 2008 R2. We have two separate instances of SQL 2008: instance A is on node 1, and instance B is on node 2. Right now I'm trying ...
0
votes
1answer
240 views

SQL Server Web Edtion Failover Cluster

Is it possible to run an SQL Server Web edition in a Windows 2008 R2 Failover Environment? I want to host a Website with backend database but keep it failsave with a failover cluster (install it on ...
7
votes
4answers
13k views

How to build a high availability Postfix system?

I'm needing to set up a remote mirror for a postfix server (where the content of both mail servers should be the same at any time). The idea is that if the main server comes down at some point the ...
1
vote
1answer
90 views

Sql server 2008 R2 fail over cluster

I want to be sure something about sql server 2008 fail over clustering. I heard that when i set two sql servers as failover cluster servers i can set load level of sql servers. for examples i have ...
1
vote
2answers
100 views

Are SQL transactions finished before a planned failover?

If I'm failing over my server due to a OS patch, are in-process transactions allowed to finish before stopping the SQL service?
4
votes
4answers
9k 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 – ...
1
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0answers
312 views

How do I configure a DCHP reservation for an IP Resource in a Windows 2008 R2 failover cluster?

Background My company has recently instituted a corporate policy that all servers are to have IP addresses that are issued via DHCP reservations to simplify the management of our IP scopes. We have ...
6
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6answers
14k views

Why are my HyperV VM's randomly losing connectivity?

I have a strange intermittent connectivity problem happening about once every two weeks. First my configuration: I am running a HyperV failover cluster with two physical hosts (node01 and node02). ...
1
vote
1answer
133 views

Predict the number of primaries after a split-brain situation

I am trying to avoid a split brain situation using automatic split brain recovery policies explained at http://www.drbd.org/users-guide/s-configure-split-brain-behavior.html How to predict which ...