All done by groups, really slick!!! Now with Windows R2 servers you can remotely access Server Manager on other systems. So just sit at one console and reach into other servers in your network to do day to day administrative tasks! We took time writing this portion of the chapter of my Windows R2 book as once you get this working, then DA actually works!
It was a pain and the reason that a lot of people gave up on ServerCore. You walk the menu to name your server, give it an IP address, domain a domain, and most importantly set it so you can run Remote Server Manager see 8 on my list to remotely manage the server.
So you can now have a simple menu to get the basics going, and then remote into the system and use the Server Manager GUI to do the rest! I have a question. What if i have 2 sites; on primary site i have 2 nodes and on secondary i have 2 nodes with file share majority. You really need to have a look at these articles to understand what node will come into service next.
If you need site preference you do , let Microsoft know! First — thanks for the excellent articles — they really helped me deal with the fun of installing SQL Server on a Windows R2 cluster. My question is about the binding order of the network adapters in the Windows Cluster install.
Why does public have to be first? And if the cluster was built with the private adapter first in the binding order, can the binding order be changed without messing up the cluster configuration?
I know if the public network is not at the top of the binding order, SQL Server setup will complain. In Windows and it definately was a hard requirement in a cluster to have the public network at the top of the binding order, so I think it is ingrained in me to do that by default. I think you will be fine to change the binding order after the fact. I would change it and run Validate again to make sure the cluster is happy with the changes.
Actually with Windows R2 filaover cluster, this will all work with just the public netwrok configured. The hearbeat will configure itself within that network, this is autometic within the cluster so you can now forgo the private network.
That is a really good point. I was about to dispute your claim and say that you needed at least two networks to pass validation but when I looked up the Network requirements in help I discovered the following….
In the network infrastructure that connects your cluster nodes, avoid having single points of failure. There are multiple ways of accomplishing this. You can connect your cluster nodes by multiple, distinct networks. Alternatively, you can connect your cluster nodes with one network that is constructed with teamed network adapters, redundant switches, redundant routers, or similar hardware that removes single points of failure.
So, it certainly can be built with a single public network but the best practice is to to make sure you eliminate all single points of failure on that network as described above. July 5, am tony roth what os level are you running I assume w2k8r2 is that correct? Basically with Windows Server clustering your nodes can now reside in two different subnets.
This slide presentation describes it nicely starting around slide This is great for most cluster types but does not work yet for SQL Server resources as it is not supported. Great info. Looks like someone is trying to pass it off as their own work.
Take a look. In Part 2, he even left some of the links to your own site. Thanks for the nice comment and letting me know about this other site. Quick question, during the creation of the cluster it asks for the Network and Address. When setting up the cluster the Networks are prepopulated with So if I set the address as Yes, you will still be able to access the cluster nodes via their static IPs.
What are the minimum requirments in terms of network latency and bandiwidth for mult-site cluster? Would appreciatte numbers for both Async and Sync mode. In 2 node primary site, and 2 node seondary site scenario, can I place the File Share Quorum in the secondary site? How about 2 node primary site, and 1 node seondary site scenario?
Network latency and bandwidth requirements will be determined by your replication vendor. In general synchronous replication will require LAN like speed and latency in order to minimize the impact to on the write throughput of your application.
In terms of DataKeeper replication latency really has no impact on replication as we have built in WAN acceleration. Putting your FSW in the second site is not a good idea as a failure of your WAN will cause a failover even though your primary site is still online. A 3 node cluster with 2 in SiteA on 1 in SiteB is OK, but if you use a simple node majority quorum which is customary for a 3-node cluster you will have to force the quorum online if you lose SiteA.
However, there was a patch release recently that will allow you to adjust the node weight so that you can use a FSW in a 3 node cluster. I wrote an article about it here. Regardless of how you slice it or dice it the FSW must be in a 3rd location in a multisite cluster in order to support automated failover without risking the false failovers associated with having the FSW in SiteB.
Thanks you so much for your quick reply; truly appreciatted. I will let you know if I have any further questions. The roundtrip communication latency between any pair of nodes cannot exceed milliseconds. If communication latency exceeds this limit, the Cluster service assumes the node has failed and will potentially fail over resources.
FSW on a sevrer at a third site that has a network path to both sites is a good idea if possible. While the millisecond rule is true for Windows clusters, with Windows they did away with that restriction and added tunable parameters called CrossSubnetDelay and CrossSubnetThreshold to support as described in the following articles. Yes, asuming you are connected via VPN to this site from the other two data centers.
I imagine cloud providers that offer infrastructure as a service can help you get this set up. Hi, anyone knows why one of the nodes fails to start.
It has been functioning for a long time and now fails…. It sounds like a permission problem still. At the share level permissions give Everyone Full Control. Then at the NTFS security permissions you must add the cluster. Please advise what would be the best way to achieve this? Just to say thank for a great article.
I approached clustering a SQL server with some doubts but your article explained it very well. The last time I looked at EC2 there were two problems that needed to be resolved. The first issue is that building a multisite cluster requires static IP addresses, which seemed hard if not impossible to implement in EC2. I thuink maybe EBS has fixed this but you need to make sure your whole VM is persistent between reboots. This whole process is a lot easier in other cloud providers like GoGrid who give you true Infrastructure as a Service with all the features you need.
Now that they have multiple data centers in different geographic locations it is also an ideal configuration for geographically dispersed clusters. Wow That was quick. Thank you for your reply. I am a mere engineer who is looking for a way to run a 64 CPU, Windows based cluster, when I need it.
With kind regards and Happy Holidays,. Sounds like it might have to do with the storage resource. If you have support from EMC I would see if they have any idea. He knows EMC storage and clustering better than anyone. You can also post on the Microsoft forum, but opening a case will get you the quickest answer.
Hi Dave very nice article Still trying to read the remaining sections but I have a quick question. Sorry, a FSW cannot be part of DFS-R, it kinds of defeats the purpose of a witness as if sites loss connectivity you could have two witness reporting two different things.
So if your solution is limited to two sites then option1 will be the vaible option to implement by placing it in the primary site which involves some manual intervention? Excellent article, many thanks to you to document the entire configuration process.
Once the initial setup of Hyper-V and Failover Clustering is complete, install a Windows Server virtual machine and configure the virtual machine for failover. Once the virtual machine that will host Print and Document services has been configured with initial settings, the Print and Document role services can be installed using Add Roles and Features in Server Manager. Windows Server introduces a new set of Windows PowerShell cmdlets that can be used to manage print servers and print queues from the command line.
Wherever possible, examples on how to use these cmdlets will be shown for common print management scenarios. Configuration and management of the Print Server role as a highly available print server is identical to that of a standalone print server. For details on how to use the Print Management Console to configure and manage a print server, see Configure Print and Document Services.
The following section will guide you through the steps to configure a highly available Print Server with Virtual Machine Monitoring:. This topic includes sample Windows PowerShell cmdlets that you can use to automate some of the procedures described.
For more information, see Using Cmdlets. Prior to enabling the Virtual Machine Monitoring feature, the firewall must be correctly configured on the highly available print server virtual machine. Open Server Manager and then click Local Server in the navigation pane. This link will display differently depending on the state of the firewall. Click Allow an app or feature through Windows Firewall in the left pane to open the Allowed Apps control panel applet. The Virtual Machine Monitoring feature of Windows Server allows for greater control of a clustered virtual machine by monitoring the Print Spooler service in the virtual machine for failures, or by monitoring specific events on the virtual machine.
A second node must be configured as a redundant system to simultaneously run Windows Server Hyper-V. Node 2 and any others will automatically take over virtual machine runtime from Node 1 to handle printing in the event of hardware or software failure and OS maintenance through migration.
This can be done via automatic detection or a manual order from the administrator. During runtime, all pointed networked print traffic is subsequently directed to one central print server on one virtual machine on one active node. This sort of networked print server virtualization does have some advantages.
It makes better use of the improved speed and memory capacity of modern systems through streamlining. It also allows traditional mission critical installations to be run and monitored simultaneously on one node machine whilst being backed up together automatically on others.
It can also reduce the need for manual server backups and complex, shared print driver cluster certification modifications on large networks, if used correctly. However, it is arguable that this print virtualization strategy contains some serious oversights and unreasonable assumptions as to software stability. The entire virtualized print cluster can be disabled through a single, common minor software fault in the main virtual machine, such as an incorrectly installed driver crashing the spooler.
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