Solved

Clustering Servers Over a WAN

Posted on 2010-11-24
7
997 Views
Last Modified: 2012-05-10
Hi All

my setup is a little bit confussing but I am going to do the best i can. We currently have two Datacenters, lets call them DC1 and DC2. Both sites have a FC SAN and Multiple servers running ESX 4.1.

What i would like to do is create a MS 2008 failover cluster for DHCP services and File print services.

But the issue is that in order get the Cluster working it needs Shared storage and because I am using Vmware and I have two different sites the cluster wont function properly.

So my question is can MS 2008 Clustering and Vmwre function over a WAN?
0
Comment
Question by:OTNAdmin
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 3

Expert Comment

by:khuphuc
ID: 34205531
in this condition of FC San on each site, you can't dedicate physically the quorum disk, then you can't do it

maybe in iscsi configuration you can reach it, but it been so hard to configurate

if you want to create a high availability server use the vmware services, maybe better
HA;
Fault Tolerance
etc

regards
0
 
LVL 16

Accepted Solution

by:
danm66 earned 250 total points
ID: 34206393
It sounds like your best bet would be to look into some kind of replication between the two DC/SAN's.  Veeam's backup solution does replication, too, but you have to manually failover to the replicated system or maybe setup some kind of monitoring that triggers a powershell script to start the replicated instance up.
0
 
LVL 23

Expert Comment

by:Luciano Patrão
ID: 34207694
Hi

How many ESX servers do you have? If you have more than one ESX server, and have vCenter you do not need to install MS Clusters. This is a waste of MS licenses and money. You can do this Clustering and High Availability with vCenter(creating some ESX Cluster with HA and DRS).

And if you need a other site to replicate your Environment, then like danm66 suggests, Veeam is a very good product(and cheap) that can create your Replications between sites.

Jail
0
Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

 
LVL 42

Assisted Solution

by:kevinhsieh
kevinhsieh earned 250 total points
ID: 34208386
You can use Windows clustering in a configuration that is known as a stretch cluster. Yes, it can be done, but I would consider it a specialized use case. It requires a way to replicate the storage.

http://downloads5.eventpoint.com/teched2009/slides_europe/SVR319_Christensen.pptx

There are other options such as Marathon Technologies or Double-Take.

My thought is that DHCP doesn't need to be clustered. Just use multiple DHCP servers and split up your scopes. You can configure your routers to forward DHCP requests to another datacenter if you need to.
http://technet.microsoft.com/en-us/library/dd296651(WS.10).aspx

For the file server, a standard Windows stretch cluster is a big deal. Perhaps an easier solution is to use DFS replication or something like Double-Take to keep your file servers in sync. Failover can be manual or perhaps automatic, and it doesn't take more than what you have right now.

For the print server, Double-Take, Marathon, Windows Clustering, keeping a copy of the VM at DC2 are all options.
0
 
LVL 3

Expert Comment

by:Virtalicious
ID: 34208751
Look.... I know you have your heart set on doing this... but please let me tell you that it is not the most efficient use of resources.

You should reconsider just allowing DRS/HA or even FT for this situation as they would allow a much more robust environment with many less restrictions.

Just trying to be the voice of reason...

-Virt
0
 

Author Comment

by:OTNAdmin
ID: 34212433
Thank you all for your coments, lets go over them.

Virtalicious:
DRS/HA would work fine in ONE Datacenter but not two. The requirements for DRS/HA and even FT is Shared storage and because we are using FC, I can not extend My SAN to both Datacenters.

kevinhsieh:
You mentioned Doubletake, we currently have doulbetake in are environment. let me ask you this could we create Two MS Fail over cluster one at one DC and One at another, then using a double take agent replicate the shared disk from one DC to another?
0
 
LVL 17

Expert Comment

by:Gerald Connolly
ID: 34213908
Microsoft cluster used to require that both nodes were in the same subnet! (and that there was a latency limit) which normally makes it difficult to run the cluster across sites - its not that its impossible just that its difficult.

Split site clusters always cause worries about the split brain scenario!
0

Featured Post

Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Tivoli Vmware change UUID of a node 5 59
Automatic Windows Service stops by itself 6 103
Restore scheduled tasks from a backup 5 40
Move Hosts to new cluster 2 52
In this step by step tutorial with screenshots, we will show you HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 6.5 (ESXi 6.5). This is important if you need to enable SSH remote access for additional troubleshooting of the ESXi hos…
In this article, I show you step by step with screenshots to assist you - HOW TO: Deploy and Install the VMware vCenter Server Appliance 6.5 (VCSA 6.5), with some helpful tips along the way.
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question