Welcome!

Artificial Intelligence Authors: Yeshim Deniz, Liz McMillan, Pat Romanski, Carmen Gonzalez, Bob Gourley

Blog Feed Post

31 Days of our Favorite Things: Windows Server 2012 and Hyper-V Replica (Part 5 of 31)

Hyper-V POWER!

Hyper-V in Windows Server 2012 (and in the free Microsoft Hyper-V Server include an easy start to a good disaster recovery solution: Hyper-V Replica.  With Hyper-V Replica you can easily create and maintain an off-line copy – a replica – of a virtual machine on a separate virtualization host.  This means, for example, that if your main location or host for an important virtual machine goes down becomes unavailable, you can easily fail-over to the replica.  The copy will start up and be available in short-order.

“That sounds really great, Kevin!  But what does it cost to set this up?”

Absolutely nothing, other than what you’ve already paid for (the OS).  Hyper-V Replica is just a capability that is included with Windows Server 2012 Hyper-V and Hyper-V Server

“How do I set it up?”

I’m glad you asked.  There are really two simple requirements to make it happen:

  1. You need to be running Windows Server 2012 with the Hyper-V Role installed (or Microsoft Hyper-V Server 2012) on both the source and destination virtualization hosts, and
  2. You need network connectivity between them.  (and don’t  forget the firewall)

Here are my 6 steps to working with Hyper-V Replica:

1. Configuring the Hosts to Allow Replication

In Hyper-V Manager, right-click on, or select the host, and choose Hyper-V Settings…

On the left, select Replication Configuration, and then enable and configure your replication options.

image

2. Setting up a Replica

To configure the replica using Hyper-V Manager, right click on the VM you want to replicate and choose Enable Replication…

Enable Replication...

On the Before You Begin page, click Next

On the Specify Replica Server page, Enter the name of the server that is to be the replication host.

Specify Replica Server

Click Next.

The Specify Connection Parameters page is, um, where you specify your connection parameters.

Specify Connection Parameters

Click Next.

Choose the hard disks you want to replicate on the Choose Replication VHDs page.

Choose Replication VHDs

Click Next.

On the Configure Recovery History page, choose whether you want to keep just the most recent recovery point, or perhaps maintain a number of points in the past that you could recover to.  You also have the option to occasionally perform a VSS copy.

Configure Recovery History

Click Next.

On the Choose Initial Replication Method page, notice that you have options on how you want that big initial replication to take place.  Maybe you don’t want to use the network for that initial large transfer, but instead would prefer to use UPS or FedEx.

Choose Initial Replication Method

Then click Finish on the summary page, and you’re all set.

image

If all was configured properly, you’ll see a new VM appear on the replication host that will be turned off.

3. Verifying the Replica’s Status

You can easily verify the status of your replica by selecting either your original VM or your replica VM in Hyper-V Manager, right-click the VM, click Replication, and then View Replication Health.

View Replication Health

Replication Health

4. Testing the Replica

You can test your replicated machine by right-clicking on the replica VM and under Replication select Test Failover…

Test Failover

Pick the point in time that you want to test, and click Test Failover.

Test Failover

This will create a linked copy VM with the text “ – Test” appended to the name.  Simply start up that VM (go ahead.  It isn’t connected to the network, so it won’t interfere with anything) and verify that it is a useable machine.

5. Disaster Strikes!  Time to Fail Over

The unthinkable has happened.  Time to act.  Your original and important production VM is no longer available.

On the replica VM, right click.  Under Replication, select Failover.

Failover!

Select the recovery point, and click Fail Over.

image

And your replica will start up configured, networked, and ready to take on Dr. Proton.

Recovered VM

6. Removing the Replica

Easy.  On both the source and replica VMs, right click.  Under Replication, select Remove Replication

image

Now you can safely delete your replica from the replication host.

---

Simple, yes?  Do you have any questions?

“Can I have the failover happen automatically?”

Not natively.  In its most simple form, Hyper-V Replica is a manual failover.  However, because you can use PowerShell to drive this entire process, there’s no reason why you (or some third party) couldn’t develop a solution that monitors the state of the source VM and launches a script (or some automation in System Center 2012 Orchestrator) to launch the failover.

“But do I need to have Active Directory?  Or do both of my virtualization hosts need to be in the same domain?”

Actually, no.  You have the option of using certificate authentication to make the trusted configuration.  (CLICK HERE for details on how to use certificates for Hyper-V Replica.)

“Do my virtual machines need to be running particular operating systems for this to work?”

Nope.  There is nothing required of the guest operating system.  You could be running the original Duke Nukum on DOS 6.22 in your VM, and this will still work.

“I’ve heard good things about using Windows Azure for hosting my virtual machines and extending my datacenter into the cloud.  Can I create my replica up in my Windows Azure account?” 

Currently the answer to that is no.  But I’ve heard this question enough times, and really it does make sense.. so I have to imagine (and that’s all I personally have to go on) that Microsoft is considering doing that.  Consider the ramifications, though… setting up a replica means configuring something beyond just standing up a virtual machine in Hyper-V.. so the process has to have the ability to manipulate the hypervisor.  I could see it happening sometime, but I don’t know when.

“Can I replicate machines that are in clusters?  And can I replicate into or out of another cluster?”

Yes and yes.  You will think of the cluster as and treat it as a single machine.  And to do that there is a special role that you need to add to the cluster called the Hyper-V Replica Broker.  This defines a new named entity that becomes either the source or the destination for replicas coming into or out of a cluster.   For more details on this, check out this Wiki article.

“What about PowerShell?  Can I use PowerShell to set up a replica?  Can I use it to do the failover or even get status on current replicas?”

Yes, yes, and yes. 

For example, to configure the replica destination host, you could use these commands to configure the firewall to allow inbound replication on the destination, and set a server up as a new replication host (each numbered line is a separate complete PowerShell command or script line):

  1. Enable-Netfirewallrule -displayname "Hyper-V Replica HTTP Listener (TCP-In)”
  2. Import-Module Hyper-V
  3. $RecoveryPort = 8080
  4. $ReplicaStorageLocation = “D:\Example”
  5. Set-VMReplicationServer -ReplicationEnabled $true -AllowedAuthenticationType Kerberos -IntegratedAuthenticationPort $RecoveryPort -DefaultStorageLocation $ReplicaStorageLocation -ReplicationAllowedFromAnyServer $true

And then to create a replication (each numbered line is a separate complete PowerShell command or script line):

  1. Import-Module Hyper-V
  2. $ReplicaServer = “Recovery1.contoso.com”
  3. $RecoveryPort = 8080
  4. $PrimaryVM1 = “CRMVM”
  5. $PrimaryServer = “Primary1.contoso.com”
  6. Enable-VMReplication -VMName $PrimaryVM1 -ReplicaServerName $ReplicaServer -ReplicaServerPort $RecoveryPort -AuthenticationType Kerberos -CompressionEnabled $true -RecoveryHistory 0
  7. Start-VMInitialReplication –VMName $PrimaryVM1

For the full story, here is the Microsoft online documentation of  Hyper-V Replica: Hyper-V Replica Overview - http://technet.microsoft.com/en-us/library/jj134172.aspx 
(NOTE: as of today, the online documents are still based on the RC code.  I’m sure it will be updated soon to work with RTM.)

And to give Windows Server 2012 a try,

---

So what do you think?  Good stuff?  Let’s discuss in the comments.

Read the original blog entry...

More Stories By Kevin Remde

Kevin is an engaging and highly sought-after speaker and webcaster who has landed several times on Microsoft's top 10 webcast list, and has delivered many top-scoring TechNet events and webcasts. In his past outside of Microsoft, Kevin has held positions such as software engineer, information systems professional, and information systems manager. He loves sharing helpful new solutions and technologies with his IT professional peers.

A prolific blogger, Kevin shares his thoughts, ideas and tips on his “Full of I.T.” blog (http://aka.ms/FullOfIT). He also contributes to and moderates the TechNet Forum IT Manager discussion (http://aka.ms/ITManager), and presents live TechNet Events throughout the central U.S. (http://www.technetevents.com). When he's not busy learning or blogging about new technologies, Kevin enjoys digital photography and videography, and sings in a band. (Q: Midlife crisis? A: More cowbell!) He continues to challenge his TechNet Event audiences to sing Karaoke with him.

@ThingsExpo Stories
SYS-CON Events announced today that Juniper Networks (NYSE: JNPR), an industry leader in automated, scalable and secure networks, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Juniper Networks challenges the status quo with products, solutions and services that transform the economics of networking. The company co-innovates with customers and partners to deliver automated, scalable and secure network...
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend @CloudExpo | @ThingsExpo, June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA. Learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
The 20th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held June 6-8, 2017, at the Javits Center in New York City, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Containers, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal ...
@GonzalezCarmen has been ranked the Number One Influencer and @ThingsExpo has been named the Number One Brand in the “M2M 2016: Top 100 Influencers and Brands” by Analytic. Onalytica analyzed tweets over the last 6 months mentioning the keywords M2M OR “Machine to Machine.” They then identified the top 100 most influential brands and individuals leading the discussion on Twitter.
SYS-CON Events announced today that Hitachi, the leading provider the Internet of Things and Digital Transformation, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Hitachi Data Systems, a wholly owned subsidiary of Hitachi, Ltd., offers an integrated portfolio of services and solutions that enable digital transformation through enhanced data management, governance, mobility and analytics. We help globa...
The buzz continues for cloud, data analytics and the Internet of Things (IoT) and their collective impact across all industries. But a new conversation is emerging - how do companies use industry disruption and technology enablers to lead in markets undergoing change, uncertainty and ambiguity? Organizations of all sizes need to evolve and transform, often under massive pressure, as industry lines blur and merge and traditional business models are assaulted and turned upside down. In this new da...
SYS-CON Events announced today that T-Mobile will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. As America's Un-carrier, T-Mobile US, Inc., is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to 67.4 million customers who are unwilling to compromise on ...
SYS-CON Events announced today that Hitachi, the leading provider the Internet of Things and Digital Transformation, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Hitachi Data Systems, a wholly owned subsidiary of Hitachi, Ltd., offers an integrated portfolio of services and solutions that enable digital transformation through enhanced data management, governance, mobility and analytics. We help globa...
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
SYS-CON Events announced today that Grape Up will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company specializing in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market across the U.S. and Europe, Grape Up works with a variety of customers from emergi...
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place June 6-8, 2017, at the Javits Center in New York City, New York, is co-located with 20th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry p...
SYS-CON Events announced today that Super Micro Computer, Inc., a global leader in compute, storage and networking technologies, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Supermicro (NASDAQ: SMCI), the leading innovator in high-performance, high-efficiency server technology, is a premier provider of advanced server Building Block Solutions® for Data Center, Cloud Computing, Enterprise IT, Hadoop/...
Amazon has gradually rolled out parts of its IoT offerings in the last year, but these are just the tip of the iceberg. In addition to optimizing their back-end AWS offerings, Amazon is laying the ground work to be a major force in IoT – especially in the connected home and office. Amazon is extending its reach by building on its dominant Cloud IoT platform, its Dash Button strategy, recently announced Replenishment Services, the Echo/Alexa voice recognition control platform, the 6-7 strategic...
Bert Loomis was a visionary. This general session will highlight how Bert Loomis and people like him inspire us to build great things with small inventions. In their general session at 19th Cloud Expo, Harold Hannon, Architect at IBM Bluemix, and Michael O'Neill, Strategic Business Development at Nvidia, discussed the accelerating pace of AI development and how IBM Cloud and NVIDIA are partnering to bring AI capabilities to "every day," on-demand. They also reviewed two "free infrastructure" pr...
In his keynote at @ThingsExpo, Chris Matthieu, Director of IoT Engineering at Citrix and co-founder and CTO of Octoblu, focused on building an IoT platform and company. He provided a behind-the-scenes look at Octoblu’s platform, business, and pivots along the way (including the Citrix acquisition of Octoblu).
Data is an unusual currency; it is not restricted by the same transactional limitations as money or people. In fact, the more that you leverage your data across multiple business use cases, the more valuable it becomes to the organization. And the same can be said about the organization’s analytics. In his session at 19th Cloud Expo, Bill Schmarzo, CTO for the Big Data Practice at Dell EMC, introduced a methodology for capturing, enriching and sharing data (and analytics) across the organization...
The explosion of new web/cloud/IoT-based applications and the data they generate are transforming our world right before our eyes. In this rush to adopt these new technologies, organizations are often ignoring fundamental questions concerning who owns the data and failing to ask for permission to conduct invasive surveillance of their customers. Organizations that are not transparent about how their systems gather data telemetry without offering shared data ownership risk product rejection, regu...
Grape Up is a software company, specialized in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market across the USA and Europe, we work with a variety of customers from emerging startups to Fortune 1000 companies.
Financial Technology has become a topic of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 20th Cloud Expo at the Javits Center in New York, June 6-8, 2017, will find fresh new content in a new track called FinTech.
SYS-CON Events announced today that Interoute, owner-operator of one of Europe's largest networks and a global cloud services platform, has been named “Bronze Sponsor” of SYS-CON's 20th Cloud Expo, which will take place on June 6-8, 2017 at the Javits Center in New York, New York. Interoute is the owner-operator of one of Europe's largest networks and a global cloud services platform which encompasses 12 data centers, 14 virtual data centers and 31 colocation centers, with connections to 195 add...