Essential Technology: A GCS Blog

Live Migration is the killer app in Hyper-V R2, which is due out in mere weeks. Microsoft finally can match VMWare feature by feature in many environments - or can they? If you don't want backups, Live Migration works fine. What? Again, please? If you're using Data Protection Manager 2007, you will not be able to backup VMs using Clustered Shared Volumes. Clustered Shared Volumes are required to utilize Live Migration.

Fortunately DPM 2010 released to Beta on 9/29. Not only does it add support for VMs using Clustered Shared Volumes but it also enables mobile laptop backups. The mobile laptop backups work over a VPN and are designed for the user off the LAN. DPM to DPM replication offers a poor man's disaster recovery solution.

Data Protection Manager is by far the best backup solution for Hyper-V virtualized environments. It includes brick level backup of Exchange, a SQL agent, and a Sharepoint agent. It integrates to Shadowcopy for backups of the VMs. All DPM agents are included in the System Center Server Management Suite, though you have to buy a seperate DPM server license.

Hold your breath. Live Migration is coming, just not quite as fast as the marketing indicates.

GCS' Early Happy Hour was filled to capacity by IT Executives from all over Central Texas. For many it was their first look at Windows 7. Many attendees agreed that the upgrade to Windows 7 is unavoidable. Following the demo, some attendees even looked forward to it! Our discussion highlighted the improved UI, Branch Caching, Windows XP Mode and AppLocker.

In addition to Windows 7 the attendees got a look at Windows Server 2008 R2. We spent quite a bit of time talking about Hyper-V, System Center Virtual Machine Manager R2 and the new Live Migration features. Marquis covered Clustered Shared Volumes in depth, as they pertain to Live Migration. We also covered the new Active Directory Recycle Bin and Branch Caching.

We wrapped up the event with a look at VMWare's VSphere 4. The new Fault Tolerance features garnered the most interest. VSphere's Fault Tolerance allows for failover between hosts without downtime. They have set the standard here. Unfortunately most of the new features in VSphere 4 are not included in the Essentials and Essentials Plus package which is the only version that is price competitive to Hyper-V.

We'll be hosting our next even soon, focused on Cloud Computing in the SMB environment.

Back in August, I introduced the various components of the System Center family. I also pointed out that the cost would of licensing each product, or even licensing a single product for multiple virtual machines, would be prohibitive for most smaller organizations. However, Microsoft has responded with the Systems Center Management Suite license that includes the licenses to manage multiple virtual machines using the full System Center family for a far more approachable price.  Here is what is included:

·         A license to run the Virtual Machine Manager server.

·         Management license for:

o   Data Protection Manager (DPM)

o   Operations Manager

o   Configuration Manager

o   Virtual Machine Manager (VMM)

This license is sold in two flavors:

·         The Enterprise flavor is licensed per physical server and allows you to manage 4 virtualized operating systems on that server. 

·         The Datacenter flavor is licensed per CPU (a minimum of 2 processors) but allows you to manage an UNLIMITED number of virtualized operating systems on a physical server.  When licensed for two CPU’s the Datacenter license is only about 25% more than Enterprise, and most likely if you have more than 4 VM’s you’ll have two CPU’s and will save money by going with the Datacenter edition.

But for small environments the biggest value of the license comes when using DPM for backup. But to explain the benefit let’s use a small virtual environment example. 

We have a Hyper-V server with 4 virtual machines:

·          A domain controller/file server

·         An Exchange 2007 server

·         A SQL server

·         A SharePoint server

The DPM protection agent also comes in two flavors:

·         Standard Data Protection which allows you to perform basic file level protection of a server.

·         Enterprise Data Protection which is required to provide protection for advanced applications like Exchange, SQL, SharePoint and Hyper-V

One of the benefits that drove this small organization was the ability to backup an entire virtual machine, which means we would need an enterprise DPM license for the Hyper-V server. When a Hyper-V server is protected with the enterprise license you are also permitted to deploy a standard DPM license inside any of its virtual machines. This allows us to backup the domain controller and file server, but the other servers would each require their own Enterprise protection license. So we would need 4 enterprise licenses.  Similarly, to properly protect all these servers with alternate backup products would require a special Hyper-V agent, SQL Agent, SharePoint Agent and Exchange Agent.

But, if this company was to purchase the Enterprise Server Management Suite they would be entitled to all the Enterprise DPM licenses they needed. And because of the new pricing, they would pay less.  Just 3 enterprise DPM licenses would cost more than the enterprise suite license. And on top of that you get management licenses for all the other System Center products.

There are two gotchas with this management suite:

·         The only System Center Server license included is the VMM server license. So you still need to purchase the server licenses for DPM, Operations Manager and Configuration Manager to take advantage of the management licenses included in the suite.

·         Despite all being part of the same product family, the System Center server product cannot all run on the same server.  Only VMM and DPM can coexist.

Because of these limitations it is likely that smaller environments will only take advantage of the VMM and DPM components of the suite, but it still offers a compelling value to consider.

The Xilocore offsite backup solution came recommended from another VAR out of state. When I saw them at the CompTIA Breakaway Summit I made a point to spend some time at the booth. If you're not familar with Xilocore, it serves the same purpose as an offsite SAN replication of VMs and data without needing the offsite SAN, servers, data center, firewall, bandwidth, etc. An onsite appliance is installed that makes a local backup and then replicates the data offsite. In the event of a server failure you can run the VM on the Xilcore box locally. If a more serious or prolonged outage occurs, Xilocore can stand up your VMs at their data center and provide Citrix-based access to those servers. Turnaround times are offered at 24 and 48 hour intervals.

I looked at this solution in comparison to a proposal I was working on that featured offsite SAN replication with offsite server hardware for DR. This was a Hyper-V platform with System Center Management Suite (including DPM). Xilocore had a compelling offer but this client already had collocation, an MPLS WAN and gobs of spare hardware coming after the virtualization project completes. Though not a fit for this client, I'll circle back and investigate more on upcoming opportunities. I'll be sure to post the outcome.

Microsoft has long offered a number of system management products. Recently these products have been grouped into the System Center family of products.   The founding members of the family were SCOM and SCCM.

·         System Center Operations Manager (SCOM) is a highly extensible monitoring system. Because of its expandability SCOM can be configured to monitor an entire environment from network and server hardware to detailed monitoring of applications.

·         System Center Configuration Manager (SCCM), formerly known as SMS, is a powerful system management product capable for end to end management of both servers and client.

Historically these products have been targeted at medium to large environments. While smaller environments could benefit from the enhanced management capabilities, they could rarely justify dedicating servers to host these products or the cost of the server software. However, newer additions to the System Center family combined with virtualization have altered the playing field to a point that smaller environments should re-evaluate the potential of System Center.

Virtualization is probably the biggest game changer for the small environment. On the one hand virtualization gives smaller environments the flexibility to host additional isolated servers, like system center servers, without requiring additional expensive hardware.  The downside to this freedom is the increase in the number of systems that need to be managed.  If virtualization is added to a small environment without additional systems management capabilities the potential for problems and poorly designed environments increases drastically.

Data Protection Manager (DPM) and Virtual Machine Manager (VMM) are the newer members of the System Center family.

·         DPM is Microsoft’s foray into the backup software market. More than just another multipurpose backup solution, DPM is designed by Microsoft specifically to backup Microsoft systems and applications using the new concept of continuous data protection.

·         VMM allows IT professionals enhanced management capabilities and centralized management of virtualized environments large and small. VMM can be combined with SCOM for even more functionality to ensure optimal placement of virtual workloads.

As smaller environments begin to build virtualized infrastructures, DPM and VMM can become powerful, indispensible tools. But the cost of licensing of these products individually would seem to keep them out of reach for these environments.  Microsoft has release a new license called System Center Server Management Suite that addresses this issue, puts System Center within reach of small environments, and will be the focus on the next post in this series.