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Blog

OK. We’re not being coy, even though we have a big “Major Product Announcement” box on the front page of our web site. Really. Am I going to share? Yes, but not now. Instead, I’m going to provide a bit of a drum roll and some recent feedback from many worldwide discussions with some great analysts and thought leaders.

To start off, we’re not just making a product announcement. Rather, we’re proposing an entirely new way to think about availability: one that will actually work – and work for the masses. We’re not pulling any punches. It builds upon years of experience, 14,000+ implementations, and thousands of customers. Combine that with some stunning, technological, price-performance breakthroughs and the game begins to change. It’s a direct assault on what I’ll call the “norms of availability.”

These norms have forced many organizations either into accepting a false sense of security or tolerating downtime that could have been prevented. We’ll be attacking both this week. So what are some of these norms of availability?

• Recovery is OK because it’s getting faster. Really? Go ask American Eagle Outfitters about their 8-day outage debacle. Given that over 30% of recoveries don’t go as planned, this is dangerous, especially now because the stakes are so high. “Recovery” is still application downtime and still presents a high-risk of data loss. Remember: prevention is better than recovery.
• Virtualization is availability. Actually, virtualization is consolidation. Virtual machines (VMs) fail and have to be restarted. Virtualization, though very important, is a subset of availability. Want to gauge availability risk with pure-play virtualization? Look at the other pieces such as storage. No big deal? Most organizations will disagree on many fronts, including price and complexity. Virtualization matters (and we’re fans), but availability should be thought of first.
• DR keeps us going. DR is the nuclear option. It’s a last resort when major catastrophes occur. It should NOT be used when a disk drive fails. (More on this in a subsequent post.) DR is a necessity, but needs to be combined with local protection to make a very powerful availability combination.
• We have high availability support for our applications. That used to be a good, though it's really an inherently flawed approach. Remember, it’s still a restart; it’s still complex; and - do the math - it’s still expensive.
• Cloud computing will solve all our issues. Actually, it may ultimately be a great part of the DR component of broader availability, but it’s just not going to work for localized failures. Time to think holistically.
• Backups protect us. They sure do, but it may be a day or two late. Can your business afford that? Keep your backups going, but consider other things to amplify availability.
• I’m not worried because I never had a problem. Wow. Now I’m really scared. You may want to give us a call before you get fired. During recent services work, we’ve helped many of our customers not just identify, but find their critical assets. Do you really know where your important assets are? Do you want to be looking for them when something goes awry?

I’d like to say these are tales of fiction, but they’re not. They’re part of that dangerous norm and we hear this regularly. Fortunately, many organizations are getting better. Shortly, we’ll provide them with availability capabilities that they’ve never had access to, either because of economics, complexity, or scalability.

For the past few months, we’ve been briefing analysts and other experts on what we're delivering this week (and after). What has their response been?

• Wow. This is BIG.
• You’re changing the dynamics of availability.
• You’ve eliminated the triage IT decision make while tackling availability.
• You’ve emancipated applications from downtime.
• This is the “American Dream” of computing.

I like the last one, though I think the rest of the world will appreciate it as well. Stay tuned. We’ll share the word in the next couple of days. And it won’t end there because fault tolerance is about to go mainstream and the implications are substantial. And that’s just the start…

Rob Ciampa

Earlier this week, Craig Resnick, research analyst from ARC Advisory Group, joined us to discuss Best Practices for Preventing Downtime in Automation Systems. Craig's presentation was very well-recieved, with several attendees commenting on the high quality of the information Craig provided. If you haven't had a chance to see it yet, the on-demand recording is here and the recap of the Q&A from the webinar is below.

Q: Has the hierarchy at manufacturers changed where the groups that mange these different domains have converged, or are they still separate?
Craig Resnick, ARC Advisory Group: Over the last five years, we’ve seen the convergence of IT with the automation and operations groups. Five years ago we used to joke about the “civil wars” between these groups. IT used to poke fun at the factory floor about the age of the equipment, which can be 10, 20 or even 30 years old in some cases. The Factor Floor used to poke fun at IT because, as they put it, IT didn’t understand what “real-time” means. We’re finding now that there are many initiatives between these groups to converge different processes at different levels. This is an ongoing process that will take a while, but from what we’ve seen, once the convergence is made, it usually has very positive results for the business.

Q: Is everRun tested and approved by Siemens, Rockwell, etc.?
Yes. everRun works with a number of different automation systems and applications from Rockwell, Siemens, Johnson Controls, Dematic, Wonderware and many others. We’ve done qualification and certification testing with many vendors in the automation space. Because of the way that everRun is designed, it is almost transparent to the application, so we really can work with most vendors and have a very quick validation/certification process.

Q: Will a TCP connection from a SQL client to a SQL server be maintained through a failover?
At Marathon, we take a different approach to application availability. It’s not about failover and recovery, it’s about keeping systems up and running, even during a failure, with no impact to the users or the data. Failover isn’t something that we really do. We can actually maintain those connections, even with a failure, at all times if that’s what you need. We can maintain all connectivity, transparent to the user and the IP connections, and keep the system states intact.

Q: Does everRun work in both physical and virtual environments?
Yes, everRun works in both physical and virtual environments. We can protect both single and multiple workloads.

Q: What is the typical integration period to get everRun up and running at a site?
A typical engagement is about 2-3 days. The software itself installs very quickly and then after that there is the deployment and migration of applications, testing and training. WE provide these services through our everRun ONE program.

Q: What is the typical overhead of everRun?
That will vary based on the application. Anywhere from 5-15% depending on the characteristics of the applications – storage intensive, I/O intensive, etc. But 5-15% is a typical estimate.

Q: Are the partnerships validated in both physical and virtual environments? We use the Dematic voice picking application.
We do support Dematic applications in both physical and virtual environments. Some of our vendors have only tested physical, some virtual and some both. Our technology is very similar for both physical and virtual, and in most cases will work with most applications in both. If you have a specific application that you would like to check on, just give us a call.

When it comes to high availability, taking a “one-size fits all” approach is highly inefficient. I recently spoke with Carryl Roy, editor of Virtual Strategy Magazine to discuss the different levels of availability, why these are important and how to select the right level of protection for each application. We also talked about how to set recovery time objectives and how tiered or selectable availability can optimize protection with less resources and at lower costs. I discuss these topics in the video below, which is featured on the Virtual Strategy website.

There are at least three straightforward steps that best practices companies are implementing to achieve aggressive costs savings with their server virtualization initiatives. I'll be reviewing these three steps in more detail, along with customer use cases, in a webinar on August 19th, "How to Get at least 2x Greater Cost Savings from Server Virtualization." To register for the webinar, go to: https://www1.gotomeeting.com/register/72241968

1. Expand Ratio of Virtual Machines to Physical Hosts - One of the simplest steps companies are taking to realize larger cost savings from server virtualization is increasing the ratio of virtual machines per physical host. The average ratio for companies who’ve adopted server virtualization is five virtual machines per one physical host. But the improved performance of the latest hypervisors and Intel processors can easily support 2X greater virtual to physical ratios.

2. Increase the Percentage of Applications Running in Virtual Environments - Another step best practice companies are using to increase their virtualization costs savings is to increase the percentage of their applications running in their virtual environments. According to Goldman Sachs research on IT spending and trends, 90 percent of respondents currently virtualize only 15 to 30 percent of their applications. Best practice companies, including one showcased in the webinar, are virtualizing 90% of their applications.

3. Decrease Virtual Storage Costs by Avoiding Fibre Channel Storage Area Networks – Early virtualization platforms required shared or networked storage to take advantage of the most compelling features of server virtualization including live migration, high availability, provisioning templates and other valuable features. However, newer virtualization platforms and high availability solutions no longer require expensive FC SANs.

Our July 30th webinar “Top 10 Reasons to Upgrade to Windows Server 2008 Now” was very well attended, and as expected, generated a lot of good questions. So many questions, in fact, that we weren’t able to answer them all during the live Q&A portion of the webinar.

For your convenience, we’ve captured all of the questions below. Answers have been provided by our speakers, David Hanna, Infrastructure Architect at Microsoft, and Michael Bilancieri, Senior Director of Products at Marathon. The questions are grouped by topic, starting with Windows Server related questions and then Marathon everRun related questions following after.

How seamless is the migration from Windows Server 2003 to 2008?
It really depends on the workload. Active Directory upgrade is similar to the 2000 to 2003 upgrade, and should not be disruptive. Cluster migrations require a rebuild of the cluster. For IIS, many applications can be migrated easily. It’s best to look on Microsoft.com for migration info that is specific to your workload. Simply introducing a Windows Server 2008 server into a 2003 environment should be seamless.

Going from Windows Server 2003 to 2008, do you recommend upgrading or re-installing the operating system?
Microsoft supports an upgrade of the OS only – no applications. Most customers however, choose to reinstall with Windows Server.

What are the hardware requirements for this Windows Server 2008?
Minimum is a 1ghz processor, 512mb of RAM, and 20GB of disk space. Details can be found here: http://www.microsoft.com/windowsserver2008/en/us/system-requirements.aspx

Do you have an actual laboratory so that I can practice Windows Server 2008?
You can find the TechNet Virtual Labs here: http://technet.microsoft.com/en-us/virtuallabs/bb512925.aspx

Any difficulties adding a Windows 2008 Server into a 2003 domain? Anything to watch out for?
Adding Windows Server 2008 Member servers to the domain should not be an issue. There are no special things to watch out for, until you start adding Domain controllers. Note that if you add a 2008 member server, and do not extend the schema, some things will be unavailable, like the enhanced DFS capabilities in 2008.

Where can I get a copy of the Windows Server 2008 trial version?
You can obtain the trial version here: http://www.microsoft.com/windowsserver2008/en/us/try-it.aspx. Starting August 20th, you will be able to get R2 in the same location.

Can I do in-place upgrade AD server 2003R2 to Server 2008 without any problem? Also, can I do that same thing with Exchange 2007 server on SRV2003R2?
Microsoft only supports the upgrade of the Operating System from 2003 to 2008. We do not support the upgrade of Windows Server 2003 with applications, so the Exchange 2007 upgrade would not be supported.

Is it possible to use the same imaging deployment method for Windows 2008 physical and virtual machines (in VMware) for consistent builds?
It is possible to use traditional imaging methods for physical and virtual, however in the virtual environment, most customers tend to use template Virtual Hard disks to deploy systems, as it is faster and more flexible than imaging.

What is the difference between GPO and NAP?
Group policy is a part of Active Directory that allows for management of users and computers. NAP, or network access protection provides endpoint health checking for network clients. This integrates with network components to restrict or allow network access. Client NAP configurations can be controlled by GPO, and some GPO settings can be enforced by NAP.

Does NAP work for VPN connections as well?
Yes. It is integrated with Microsoft VPN as well as some partner solutions.

Does XP pro and 2008 Server talk well together? What’s a better path, upgrade your clients to Win7 then servers to 2008? Or vice versa?
XP will work in a 2008 domain environment, but it won’t be able to take advantage of all of the features of 2008. Vista is designed to complement 2008, and Windows 7 works best with 2008 R2 (or 2008). I would recommend deploying Windows Server 2008 for workloads that will gain the most benefit – this will allow you take advantage of it immediately. Then follow with Windows 7 when you are ready.

Do terminal servers have central management to manage users and applications?
There are a number of tools to centrally manage the environment. R2 adds a connection broker component that will publish apps from multiple servers. However, apps still need to be published on each server, and permissions need to be set that way as well. Citrix provides some great centralized mgmt tools that enhance the native tools.

Will 2008 support XP clients?
Yes. 2008 will support XP for many things including Terminal Services, with RDP 6.1 client, NAP, with XP Sp3, Group policy preferences and many other features. Windows Vista and Windows 7 however, are able to take advantage of more features.

I have two Windows 2008 servers that are going to be setup as a cluster for Exchange 2007. Is there a document for setting up the “heartbeat” connection between the two servers?
There are many documents on technet that will help. When you build the cluster, the validation wizard will check the configuration of the heartbeat network to make sure its configured appropriately. Typically, a 2 node cluster will use a cross-over cable, although a non-routed VLAN on a switch also works. Some docs:

Step-by-step guide for basic 2-node cluster: http://technet.microsoft.com/en-us/library/cc731844(WS.10).aspx
Validating an Exchange 2007 Cluster: http://technet.microsoft.com/en-us/library/bb676379.aspx

Is Server 2008 with Exchange supported on VMware?
Exchange Server 2007 SP1 on Windows 2008 is supported – see here for details: http://www.windowsservercatalog.com/svvp.aspx?svvppage=svvp.htm

Is it possible to run a 2008 DC with 2003 DCs without any sort of hacks or work-arounds?
Yes – it is possible. You’ll need to extend the AD Schema and install a 2008 member server, then promote it to a DC. There are some documents here: https://blogs.msdn.com/canberrapfe/archive/2009/04/08/adding-a-2008-domain-controller-to-your-2003-forest.aspx

Regarding the NAP, once a client is quarantined, is there a policy or rule that the admin must create to get the client healthy? Meaning, is it automatic or does the client sit there until someone checks the quarantined clients and fixes the issues?
NAP can be configured to auto-remediate certain things – turning firewall on, turning on autoupdate, etc. For AV, or patches, users can be directed to a web page with simple instructions or links to update the client.

Has load balancing improved with 2008 and TS?
It has been made simpler. Many customers found NLB to be complicated for what was needed on Terminal Services. TS on 2008 uses DNS round robin for initial connection with the TS Farm, then load balancing across nodes is handled by using RDP session load balancing.

How many CALs are included in the bundle of Windows Server 2008?
There are different bundles with 5, 10, or 25 CALS. http://www.microsoft.com/windowsserver2008/en/us/pricing.aspx

How many machines can run on a single user MS Windows Server 2008, because we want to move to VMware soon.
Microsoft supports up to 192 VMs on Windows Server 2008, and 384 on Windows Server 2008 R2. Typically numbers will not be anywhere near this, as other system resources will bottleneck. Details can be found here: http://www.microsoft.com/windowsserver2008/en/us/hyperv-faq.aspx#HyperVWindowsServer2008Specific

Is MS Windows Server 2008 VMware built-in?
Microsoft’s virtualization solution, Hyper-V, is built in to Windows Server 2008 and R2.

How would Hyper-V handle the VMware over committing resources, for example, is ESX server only have 8GB RAM but it can assign 16GB RAM to the VMs because it holds the memory and only releases it when it is required. The main reason for Exchange on a ESX box is not a good idea.
Hyper-V does not support over-commit of memory resources. To assign 8gb of RAM to a VM, you must have 8gb available. This improves performance and security.

What happens when a file which has been transferred/shared to a branch using Branch Cache is opened in the main office? Will the branch be informed about this and vice versa?
When clients use branch cache, each file is referenced by a hash. When a client tries to retrieve a file from the central office, it checks the hash of the file, then compares it to what is in the local cache. If the file has changed, then the hash would have changed, and the client would retrieve the updated version. The branch is not informed if the central copy is opened, only if it is changed, through the hash mechanism.

What is the maximum supported DFS server in 2008? In 2003 I think it is less than 70GB and that was not enough for me.
The File Replication Service in Windows Server 2003 had trouble with replication when data sizes got too big. Windows Server 2008 uses DFS-R (Distributed File System Replication) for replication – this uses an algorithm call Remote Differential Compression, which compresses files, and replicates only changes. This makes replication more efficient, an able to support large volumes of data. The limits that existed in 2003 for data size are either removed, or raised greatly.

What is the standard vs. reduced footprint for Windows 2008?
Processor requirements for Server Core and full Windows Server 2008 are the same. Minimum memory recommendations of 512mb are also the same. While the system requirements on Microsoft.com don’t list separate requirements for Server Core, it typically requires less disk space than a full installation. Additionally, Server Core has fewer roles to install (only 9), fewer services running, and has no GUI.

Are there any plans to integrate snapshot technology within Hyper-V?
Hyper-V already supports snapshots at two levels. First, it supports snapshots of the Virtual Machine itself, through use of memory copies and differential disks. The other snapshot capability is a snapshot backup, performed by the host Hyper-V system, using Volume Shadowcopy Services to back up the running VMs.

When will Hyper-V R2 be released?
Windows Server 2008 R2 and Hyper-V R2 released to manufacturing on July 22nd. General Availability will be in October. Volume license customers should have access to the code on August 19th. More details are available here: http://blogs.technet.com/windowsserver/archive/2009/07/22/when-to-expect-windows-server-2008-r2-rtm.aspx

Can everRun protect a workload that is physical on one side and virtual on the other?
everRun does not install INTO a Windows system, so it isn’t able to protect a ‘physical’ system in this sense. Many of our customers choose to keep some of their applications isolated to a physical server with no other applications or VMs on that host while protecting them with everRun. This is done by creating a single Windows environment within the everRun environment. Although the capability is there to create multiple, a single is the desired approach.

How does everRun handle data stored on NAS?
everRun can use any product data that resides on any type of storage. everRun sees the storage repository as a disk volume and can mirror between any two.

How many licenses for the operating system do I need for this solution? Do I need two licenses for the application (i.e. Exchange) as well?
Typically two licenses of Windows are required, however the Enterprise edition provides benefits when running in virtual environments. Please check with Microsoft on this and with your application vendors as all vendors have different licensing terms for redundant/high availability systems.

How well does everRun work with dissimilar hardware (i.e. at the DR site using older servers)?
There are some requirements for similar server components. If two supported servers are utilized and one happens to have a slower processor, the application may run at the slower speed, depending on the level of protection chosen within everRun.

Does everRun replicate all server data including application data like SQL databases?
Yes. The entire operating environment and all disks, including the OS, application, and application data are mirrored.

Is everRun effective for small companies? For example, an Exchange environment for less than 200 users?
Absolutely. Many of our customers are smaller to mid-sized businesses who require an availability solution that is simple, effective, and doesn’t require SAN storage or dedicated IT staff to manage.

Does everRun support MS Small Business Server?
Yes. Our everRun solution will work with any version of Windows Server, 64-bit or 32-bit. We work for small scale solutions all the way up to enterprises.

Will everRun support Exchange 2010 DAG location geographically?
We are still researching Exchange 2010 capabilities and how they can best be supported by everRun. At this time we are not yet clear on how DAG will or can be supported.

How are system upgrades handled in the everRun environment?
A single upgrade is performed on the single exposed Windows environment. Both of the redundant systems will be updated automatically by everRun. everRun also offers mechanisms to reduce the risk and associated downtime of system upgrades.

How does the actual SQL server app run in the everRun environment?
Exactly the same as it does in a non-everRun environment. everRun sits below the Windows environment therefore there are no application changes required.

The everRun software sounds great, but it requires two physical servers. Any hope of moving forward to do the same work within a VMware or Hyper-V environment?
Today everRun supports virtualized environments running on Citrix XenServer. We announced a joint development agreement with Microsoft back in early 2009 to provide everRun Fault Tolerance within a future version of Windows/Hyper-V.

How is everRun migrated with Windows 2008 hypervisor?
everRun will support a future Windows/Hyper-V release as part of the joint development effort between Microsoft and Marathon.

What system resources are used by everRun?
A small (varies a bit by the application that is running) bit of CPU and memory overhead is consumed by everRun.
 

The Burton Group recently completed a certification review of Citrix XenServer 5.5 with Citrix Essential 5.5 Platinum Edition. After reviewing XenServer against extensive production-ready criteria (27 required features, 42 preferred features and 24 optional features—these guys are thorough!) the Burton Group team found that XenServer is enterprise-production ready.

Chris Wolf, virtualization expert and Senior Analyst at the Burton Group, said on his blog that “XenServer has demonstrated itself as a virtualization platform worthy of the demands of large scale enterprise environments.” He also found that XenServer meets the security, management, availability, storage, network, compute, scalability, and performance requirements typical of many enterprises.

You can read more about the Burton Group’s findings here, and they will also be presenting the complete criteria list at their Catalyst conference in a couple of weeks.

Congratulations to the Citrix XenServer team!
 

Analyst firm The 451 Group has just released some very interesting findings about virtualization and availability in a recent report by Chief Analyst John Abbott. Some of the key take-aways include:

• Virtual infrastructure can form the basis of fully automated availability processes. Availability becomes a default property of the virtual machine.

• ‘Dial up’ levels of availability can be implemented, depending on the requirements of specific applications or departments.

• If a system restore is required after a disaster, it’s usually much easier and much quicker to restore a virtual machine than a physical machine.

• Virtualization infrastructure is already a core component in datacenter automation, unified computing (the bringing together of servers, storage and networking) and cloud computing. Availability services based on top of a virtualization layer will slot right into any of these longer-term initiatives that customers may be working toward.

• Industrial-strength storage networks, currently a best-practice requirement for virtual availability, will lose ground to alternatives, which are maturing.

• The worlds of high availability and disaster recovery are coming together as virtualization is added to the mix.

• Tools more friendly to end users are likely to emerge, reducing the load on enterprise IT support staff, but requiring sophisticated underlay technology.

The 451 Group hosted a webinar a few days ago on this topic, which is available to download for free here: http://www.451group.com/report_view/report_view.php?entity_id=58563 
 

One of the promises of server virtualization is improved high availability and more efficient disaster recovery. But according to the Enterprise Strategy Group (ESG) to achieve these goals with virtualization requires the modification of existing processes. It also requires looking beyond the virtualization vendor's HA and DR products to achieve SLAs for all workloads.

Mark Bowker and Lauren Whitehouse, analysts from ESG, recently put together an exclusive report on this topic called “Business Resilience in Virtual Environments” that explores:

• The advantages and challenges of server virtualization for improved business resiliency

• The limitations of the virtualization platform vendor's offerings for HA and DR

• Misconceptions about common business resiliency terms such as high availability, fault tolerance and disaster recovery

• How to use a combination of third-party solutions and new processes such as V2V, P2V, V2P and V2C to meet your application SLAs and DR objectives

This report is available exclusively from Marathon. You can download a copy here.
 

On February 24th, we’re going to be doing a webinar featuring Stephanie Balaouras, Principal Analyst at Forrester Research and co-author of the report, X86 Server Virtualization for High Availability and Disaster Recovery. Stephanie was good enough to sit down with us to answer a couple of questions we had before the webinar.

Q: Stephanie, can you give us the 10,000 ft. explanation of why server virtualization is a good alternative for high availability and disaster recovery?

A: In a nutshell, server virtualization facilitates a rapid — or even automatic — restart of applications after an IT failure, and when used in conjunction with data replication between data centers, it can restart applications at a recovery site following a primary site failure. In particular, x86 server virtualization can improve the availability of business-critical systems that are important to the business but not critical enough to warrant the investment in expensive and complex resiliency technologies like fault-tolerant hardware or clustering.

Q: You had mentioned that Forrester is seeing increased customer interest in active-active strategies for high availability. Is that just in Fortune 500 companies or is the interest broader than that?

A: Active-active isn’t just for the largest of companies. Companies of all sizes are under increasing pressure to improve their recovery capabilities but at the same time, they are under pressure to reduce costs and achieve greater operational efficiencies. Companies need an alternate site so they can failover critical business operations in the event of a primary site failure. Given the necessary investment, an alternate data center simply can't remain idle waiting for some disaster to occur. Companies must determine ways to maximize this investment to improve business operations, accelerate growth, or elevate availability.

Q: What’s changed that is driving the greater interest in active active for HA?

A: There are a couple of reasons why there is a growing interest in active-active strategies. First, as I mentioned, most companies are under increasing pressure to improve recovery objectives. In fact, most companies that I speak with have recovery time and recovery point objectives measured in hours, not days. To achieve this type of recovery, today you need to have dedicated infrastructure (servers, storage etc.) at the alternate site.

In the past, many companies might have turned to a DR services provider for their needs. For cost reasons, they subscribe to shared infrastructure services. Because the infrastructure is shared, recovery is limited to recovery of system configurations and data from tape, which means that best case scenario for recovery is 24 hours to 48 hours. As result, many companies are brining DR “back in-house” and making the business case with better recovery objectives and the ability to use the investment in the alternate site for multiple purposes.

Thanks Stephanie, we’ll see you on the 24th. Want to hear more from Stephanie? View her posts on the Forrester Blog for IT Infrastructure & Operations Professionals.

Register here for the webinar featuring Forrester Research.

For healthcare organizations and their IT departments, almost everything is mission critical, from patient information to registration systems and records management. Information needs to be readily available and data has to protected at all times to avoid compliance risk or calamitous consequences.

From what we’ve seen, the interest in virtualization for high availability and disaster recovery is driven by two key factors: cost savings and greater demand for 24x7 availability of health records. Like so many organizations in this tough economy, health care providers are under tremendous pressure to deliver the same quality services at lower cost. Using server virtualization for server consolidation can help. And the VMotion and XenMotion capability in VMware and XenServer respectively can provide these organizations with DR that is significantly easier to deploy and execute. On top of XenServer they can add everRun VM for fault tolerant, high availability protection that is much more affordable and practical than what they have had in the past.

Testament of the increased interest in virtualization from healthcare organizations comes from our own experiences here at Marathon. We’ve seen a positive uptake in healthcare customers who are deploying everRun VM to protect their virtual environments. Currently, about 30% of new customers that are in Marathon’s pipeline for sales are in the healthcare related space. We can only assume that the number of healthcare customers we service will continue to grow as we venture into 2009.

The changes these organizations are making are allowing them to stay ahead of the competition as they increase efficiency, ensure the availability of patient records and most importantly set the standard for inpatient and outpatient care.

Are you part of a healthcare organization that is starting to deploy server virtualization? Is more effective HA and DR a key goal?

Using the Adobe Flex framework, Marathon teamed with UI Foundry to develop a rich Internet application (RIA) console that manages and monitors the world’s first fault-tolerant, high availability software (everRun VM) for server virtualization. The software integrates with Citrix XenServer environments, all through one-click operation.

“The value proposition of using Adobe Flex lies in how we cost-effectively built a rich, elegant user interface that consolidates and simplifies huge amounts of data across complex server environments – positioning our product line even further ahead of the product curve.”- Jerry Melnick, CTO, Marathon

 

See the complete case study on Adobe’s site here.

While most companies using Microsoft Exchange still use Exchange 2003, Exchange 2007 provides a new, more flexible architecture that provides real benefits worth looking at. This new architecture is based on server roles. All services and features are organized around five distinct server roles: Mailbox, Client Access, Hub Transport, Unified Messaging and Edge Transport. The big advantage to this approach is that you only have to deploy the roles that are needed and multiple copies of a role can be deployed for enhanced availability, DR and performance.

When Exchange 2007 is run in a virtual server environment each role can be implemented as a separate virtual machine. Individual services can be easily matched to resource requirements by selecting the number and location of the virtual machines implementing each service to be started. The number, location and configuration of these virtual machines can be dynamically adjusted as usage requirements change over time. Infrastructure components that support the Exchange environment, including Active Directory, DNS and DHCP that have traditionally required separate servers and distinct availability solutions, can now be implemented as virtual machines in a common resource pool and leverage the common availability solution that is used to address the entire virtualization environment.

Virtualization also makes disaster recovery easier to implement, more effective and less costly. Virtual machines separate the software configuration from the underlying hardware. This provides total flexibility in the hardware required for the disaster site. One set of hardware can provide disaster backup for multiple applications and cost effective configurations can be chosen strictly based on their disaster recovery role. Software configurations change over time and changes must be duplicated at the disaster site to ensure proper operation. This can be extremely time consuming and error prone in a physical environment. In a virtual environment, the configuration is contained within the virtual machine definition file. Simply copying this file to the disaster site is all that is needed to maintain configuration compatibility.

So how many of you have made the important step to moving to Exchange 2007? If you haven’t deployed 2007 yet, are you planning to? We would love to hear from you. If you have a minute, please take the poll to the left and tell us your plans. If you deployed it, are you taking advantage of the virtualization benefits? Leave us a comment and share your thoughts.

This video was created by the Citrix UK and Marathon UK team’s to help IT understand how XenServer and everRun provide a better way to run business-critical and mission-critical applications in virtual environments. After watching the video, feel free to leave us any other questions you might have.

Every day, companies around the world rely on the features of Microsoft Exchange for their business-critical applications like email, calendaring, contacts, mobile support, web-based information accessing and data storage support. While we’ve discussed the importance of maintaining Microsoft Exchange high availability and steps to simpler Exchange HA, we thought this would be a good opportunity to share a case study from one of our customers.

Connecting Employees, Vendors and Customers Without Interruption

A large U.S. furniture retailer was becoming increasingly dependent on Microsoft Exchange 2003 for internal communication and collaboration, and for communication with both vendors and customers. Since the retailers primary revenue-generating activities relied on e-mail, downtime would have resulted in serious consequences. As a result, Exchange protection became a requirement and top priority for senior leaders.

everRun –An Alternative to Clustering

The IT staff had previous experience with traditional clustering and was looking for an easier, more robust solution. They selected everRun and implemented a solution using a pair of IBM servers with local boot disks and a fibre channel SAN for the datastore. Currently, the system supports close to 1200 users.

No Exchange Failures = Increased Competitive Advantage

In over a year of operation, they have not experienced a single unplanned disruption of their Exchange system. In turn, this has allowed them to keep their revenue-generating activities operating at full speed. As a result, they are currently looking at adding the everRun SplitSite option to allow geographical separation of their systems for additional protection.

Do you have a story when protecting Exchange would have been a better option than what resulted? How did it affect you or your company?

A couple of weeks ago Gartner released their “Top 10 Strategic Technologies for 2009.” Each technology is defined as, “one with the potential for significant impact on the enterprise in the next three years.” The technologies listed have been available for quite some time – many of which were present on last year’s list – but one that continues to move up in rank is virtualization.

Considering the state of the economy, we anticipate this to be an area that will continue to flourish over the next 12-24 months as virtualization technology becomes feasible for businesses of all sizes. We’ve discussed the economical (and environmental) benefits of virtualization in recent posts found here and here.

So what do you think? Do you agree that virtualization is the #1 strategic technology for 2009?

As we noted in our last post, Exchange High Availability has become increasingly important to businesses of all sizes. To help you get started, we’ve put together these five tips, which are easily-digestible pieces from our “Protecting Microsoft Exchange in Physical and Virtual Environments” white paper.

STEP ONE – PROTECT AGAINST SERVER FAILURES WITH QUALITY HARDWARE AND COMPONENT REDUNDANCY

Server core components include power supplies, fans, memory, CPUs and main logic boards. Purchasing robust, name brand servers, performing recommended preventative maintenance, and monitoring server errors for signs of future problems can all help reduce the chances of Exchange downtime due to catastrophic server failure.

Downtime caused by server component failures can be significantly reduced by adding redundancy at the component level. Examples are: redundant power and cooling, ECC memory, with the ability to correct single-bit memory errors, and combining Ethernet cards with RAID.

STEP TWO – GET RID OF STORAGE FAILURES WITH STORAGE DEVICE REDUNDANCY AND RAID

Storage protection relies on device redundancy combined with RAID storage algorithms to protect data access and data integrity from hardware failures. There are distinct issues for both local disk storage and for shared, network storage.

For local storage, it is quite easy to add extra disks configured with RAID protection. A second disk controller is also required if you want to protect against controller failures.

Access to shared storage relies on either a fibre channel or Ethernet storage network. To assure uninterrupted access to shared storage, these networks must be designed to eliminate all single points of failure. This requires redundancy of network paths, network switches, and network connections to each storage array.

STEP THREE – PREVENT NETWORK FAILURES WITH REDUNDANT NETWORK PATHS, SWITCHES AND ROUTERS

The network infrastructure itself must be fault-tolerant, consisting of redundant network paths, switches, routers and other network elements. Server connections can also be duplicated to eliminate failovers caused by the failure of a single server or network component. Take care to ensure that the physical network hardware does not share common components. For example, dual-ported network cards share common hardware logic, and a single card failure can disable both ports. Full redundancy requires either two separate adapters or the combination of a built-in network port along with a separate network adapter.

STEP FOUR – FORGET SITE FAILURES WITH DATA REPLICATION TO ANOTHER SITE

Site failures can range from an air conditioning failure or a leaking roof that affects a single building, a power failure that affects a limited local area, or a major hurricane that affects a large geographic area. Site disruptions can last anywhere from a few hours to days or even weeks.

There are two methods for dealing with Site Disasters. One method is to tightly couple redundant servers across high speed/low latency links, to provide zero data-loss and zero downtime. The other method is to loosely couple redundant servers over medium speed/higher latency/greater distance lines, to provide a disaster recovery (DR) capability where a remote server can be restarted with a copy of the application database, which only misses the last few updates. In the latter case, asynchronous data replication is used to keep a backup copy of the data.

Data replication is combined with error detection and failover tools to help get a disaster recovery site up and running in minutes or hours, rather than days.

STEP FIVE – CONSIDER VIRTUALIZING EXCHANGE FOR BETTER HIGH AVILABILITY

The latest server virtualization technologies, while not required for protecting Exchange, do offer some unique benefits that can make Exchange protection both easier and more effective. Virtualization makes it very easy to set up evaluation test and development environments without the need for additional, dedicated hardware. Virtualization also allows resources to be adjusted dynamically to accommodate growth or peak loads.

To help you make the business case for virtualization Exchange, we’re producing a live webinar with Citrix on November 11th: Virtualizing Exchange - The Cold, Hard Numbers on Why Citrix XenServer + everRun VM is the Best Platform. Register for the webinar here.

For most organizations, email is single-handedly the most important tool for accomplishing business objectives. Without access to email, companies are at an immediate disadvantage in today’s “I want it now” marketplace. For example, let’s look at the impact email downtime has on productivity: Assuming that your employees are 25% less productive when email is unavailable, and their annual salary is $60,000, then every hour of downtime for an organization of 500 people results in more than $7,200 in lost employee productivity. Can your organization bare a $7,200/hour loss? In today’s economy? Probably Definitely not.

Avoiding the aforementioned consequence is an option, but in order to do so you need to guarantee continuous availability for your organizations email server. According to Paul Rubens at ServerWatch, 2007 forecasts from Gartner revealed that Microsoft Exchange 2007 will own 70% of the email market share by 2010. Now, whether Microsoft will actually return those results, it’s still too early to tell. However, as more and more companies rely on Exchange servers to run business functions, all potential causes of unplanned downtime need to be identified and eliminated.

Over the next month, we will be providing you with some recommendations on how to improve Exchange high availability through planned and unplanned downtime – starting with a webinar on November 11 titled “Virtualizing Exchange – The Cold, Hard Numbers on Why Citrix XenServer and everRun VM is the Best Platform.” For this webinar, Jerry Melnick, Marathon CTO, and Matt Fairbanks, VP of Product Marketing for Citrix Virtualization and Management Division, will team up to discuss how the latest server virtualization technologies keep users continuously connected to Microsoft Exchange servers in the easiest and most effective manner. We encourage you to register online for the webinar if you haven’t already.

Is there anything in particular related to protecting your Exchange severs you would like us to address in the next few weeks? Leave us a comment below and we will be sure to put it on our radar.

As a result of economic turbulence, companies of all sizes continue to explore virtualization as an option for shedding costs. With the growing number of virtualization options available, it’s important not to let your organization fall victim to virtualization buzzwords. Not all vendors offer the benefits of virtualization, yet many claim they do.

With that being said, when deciding which solution to implement within your organization, IT decision makers should be prepared with an arsenal of questions to ask each provider – doing so will eliminate the typical “fluff” vendors use to sell their supposed virtualization solutions. Having all your questions answered will ensure that you get the most appropriate and highest quality solution for the applications you wish to protect. The following is a list of questions that might assist IT professionals in making their virtualization-related decisions, and some other considerations we offer:

These are just a few examples that should help get the conversation going. Has anyone deployed a virtual environment that wasn’t the right fit? What were the repercussions and what needed to be done to correct it?

If anyone has any questions they wish they had asked prior to purchasing, please leave them in the comments below and we will be sure to add them to the list.

On October 21 at 10:00 a.m. EST, our CTO Jerry Melnick will be a featured presenter at the 2008 NorthEast Disaster Recovery Information X-Change (NEDRIX). Jerry’s presentation, Better Business Continuity and Disaster Recovery through Virtualization, will help attendees learn how and why server virtualization done right can:

• Make disaster recovery planning and execution much easier
• Simplify the notoriously difficult process of high availability maintenance
• Deliver high availability protection tailored for each application

Are any of you currently using virtualization for business continuity or disaster recovery? If so, what have your experiences been like thus far?

This year’s conference will take place from October 20-22 at the Hyatt Goat Island Newport, RI. For more information about the event and how you can register please visit NEDRIX’ website.

Everyone is well aware of the recent market turbulence and the pressure this will put on corporate spending. The economic situation is going to have an effect on every aspect of business action. However, despite budget cuts, I think that the increase in virtualization adoption will continue unabated. Here are a few things I expect:

• Since the beginning of 2008, the virtualization industry has seen changes in its landscape. Microsoft’s Hyper-V introduction has made a lot of noise, as more and more customers are seeing and trying it for themselves. One of the big draws for Hyper-V is its price point. In this market, its price will continue to make it an attractive solution. In fact, I believe the price will dip even further by year’s end, keeping it in consideration for enterprises as other solutions are ditched to shore up costs. As additional vendors support Hyper-V it will only become easier for companies to evaluate, justify, and acquire the solution.

• I believe that not only will Hyper-V demand continue, but people will also begin to adopt more than one hypervisor. Almost all companies have more than one operating system or hardware platform. Since IT departments are adapt at integrating heterogeneous technologies, it is only natural for companies to mix and match hypervisors to solve the specific challenges they have while meeting budget requirements.

• In general, many of the companies that made initial virtualization-related purchases capitalized on its “low-hanging fruit.” Most Fortune 1000 companies have already completed relatively low risk actions and virtualized applications like dev and test systems and file and print. Moving forward, I think that customers will now want to implement virtualization on more of their mission-critical applications. Applications like Exchange and SQL, which both have growing needs for high availability solutions.

• Expect the interest level and the actual deployment of both higher-end availability technology and sophisticated management tools, and the infrastructure that surrounds that, to quickly ratchet up. This will allow people to complete the first phase of adoption and will begin a speedier move towards mainstream inclusion of virtual technology in data centers.

How do you think the rest of the year will play out in the virtualization industry? Feel free to leave a comment with your thoughts; I’m interested to hear the insights of others.