December 30, 2008

Healthcare: An Industry Looking to Use Server Virtualization for High Availability and Disaster Recovery

Posted by: Gary Phillips

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 24×7 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?

December 11, 2008

How Do You Create a Rich Internet Application (RIA) for High Availability Virtual Servers? We Used Adobe Flex

Posted by: Brian Mullins

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.

December 10, 2008

Webinar: Assessing the Impact of Planned and Unplanned Downtime in the Contact Center

Posted by: Brian Mullins

Business continuity planning ranks among the top trends in a recent Dimension Data report on contact center technology. Yet many call centers aren’t equipped to deal with unexpected downtime from a system failure. These centers would lose productivity and sacrifice service levels when mission-critical tools like real-time reporting systems go dark.

Real-time reporting provider Inova Solutions, along with new partner Marathon Technologies, will host a webinar to discuss best practices for business continuity and high availability in the contact center. Presenter Scott Thompson from Marathon Technologies will discuss how to protect your real-time reporting investment from costly downtime and data loss.

Participants can register for the webinar here. Details are below:

What: Webinar: “Assessing the Impact of Planned and Unplanned Downtime in the Contact Center”
When: Wednesday, December 10, 2008, 2:00 pm EST

via Inova Solutions website.

December 04, 2008

Exchange 2007 and the Virtualization Opportunity

Posted by: Jerry Melnick

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.

November 25, 2008

How Citrix And Marathon Can Provide You With Zero Downtime

Posted by: Brian Mullins

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.

November 24, 2008

UNDERSTANDING DIALABLE AVAILABILITY

Posted by: Brian Mullins


As many of you know, one of the key components of everRun VM is the ability to dial up or dial down the level of availability needed to protect business-critical applications. With buzz surrounding the release of Citrix’ XenServer 5, we have been approached with questions like “what should I use to protect my low-priority applications” and “how do I know when something should or shouldn’t be protected with the lockstep option?” To help explain the three levels of availability and when they would be used, we’ve put together these tips:

LEVEL 1: BASIC FAILOVER WITH XENSERVER HA
The first level of availability, basic failover and recovery, is appropriate for applications where recovery is not absolutely critical, and where manual intervention, while not desirable, is acceptable. These may include infrastructure applications or dev and test systems.
XenServer HA provides:

  • Basic failover to another host within the same Xen pool, with resource calculation to determine whether adequate resources are available within the pool to handle a defined number of simultaneous host failures (XenServer HA does not check the health of available devices, such as network and storage)
  • Monitoring of health of the hosts within a pool (Network and storage health are not monitored)
  • No storage or data protection – using this level requires a shared-storage configuration

LEVEL 2: COMPONENT-LEVEL FAULT TOLERANCE WITH everRun VM
For applications with business-critical roles, everRun VM provides component-level fault tolerance: the ability to withstand the loss of an individual network or storage component without interruption or downtime.
The attributes of Level-2 availability include:

  • Automated setup and fault management: policies handle system, network and disk I/O failures without IT intervention
  • Assured recovery of virtual machines
  • Zero downtime due to I/O failures and zero data loss
  • Synchronous data mirroring between hosts; no need for shared storage
  • Continuous active validation of all components on production and standby system to ensure complete redundancy at all times for recovery in the event of a failure
  • Comprehensive availability including system, network, and data availability, all in one integrated solution

LEVEL 3: SYSTEM-LEVEL FAULT TOLERANCE WITH everRun VM AND LOCKSTEP OPTION
For the most mission-critical systems, Marathon everRun VM with Lockstep Option provides system-level fault tolerance, with continuous availability in the face of component or system-wide failures. Level 3 will be available in 2009 and offers protection for systems that cannot experience any downtime and must maintain transaction state at all costs. everRun VM with Lockstep Option offers all of the benefits of everRun VM (Level 2), together with:

  • Zero downtime even for complete host failures
  • Application state maintained during failures
  • Memory state maintained during failures

For more information on the different levels of availability please visit here.

November 18, 2008

Protecting XenApp with everRun – Citrix Summit Demo

Posted by: Brian Mullins

Citrix Summit is a major event for Citrix partners to learn the best new technology products for application delivery infrastructure solutions. The event was a few weeks ago, and it is worth noting that in the keynote presentation, delivered by Mark Templeton, President and CEO, and Peter Blum, Senior Systems Engineering Manager, they demonstrated Marathon’s everRun VM Level 3 protecting XenApp. What the audience saw was how everRun provided continuous availability for XenApp – even when they unplugged one of the servers.

Did anyone have a chance to see this demo live? What did you think?

November 13, 2008

How A Large Furniture Retailer Benefitted From Protecting MS Exchange

Posted by: Brian Mullins

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?

November 12, 2008

Virtualizing Exchange Webinar Q & A

Posted by: Brian Mullins

Yesterday, Matt Fairbanks, VP Product Marketing, Citrix, and Jerry Melnick, CTO, Marathon, presented the webinar “Virtualizing Exchange – The Cold, Hard Numbers on Why Citrix XenServer + everRun VM is the Best Platform.” Below are a few of the questions asked from participants with Jerry’s response to each:

Q: What happens in a case of a split brain scenario?

Jerry: In our SplitSite products, we have what we call a quorum services capability – it’s actually an additional component that’s added on to manage split brain and arbitrate when you lose all connections between the two machines.

Q: How long does it generally take to set up XenServer with everRun VM to create this kind of a solution?

Jerry: Citrix people have always mentioned “Ten minutes to Xen” which is a pretty good rule of thumb. We say it’s another ten minutes to add the Marathon software. It’s a simple script that gets run on each host, and then you’re off and ready to protect the machines. The actual protection process itself is really a matter of a minute. The simplicity and ease have never been seen before in this industry with this class of availability solution.

Q: In field of limitations and customers that have deployed this kind of technology, are there any things you would council people to consider to set up XenServer and everRun in the most highly available and robust way?

Jerry: With our system, we provide best practice guidelines for configuring networks availability, etc. One of the beauties of our technology – working in conjunction with XenServer – is that once everything is installed and running, we put everything into an active validation mode so that we know components are configured properly. If something is misconfigured or isn’t running redundantly, you’re going to see the status and receive a warning. A key benefit of this system is you will know how to fix it before there are any problems.

There are many cases in availability systems where you have simple failover technologies: you take an error, you failover, you get to that resource, and then you find out the network or disk isn’t working because it wasn’t configured properly. By having this active validation capability and the report out, the status is being monitored in a simple and reliable fashion – you know when you’re redundant and how you’re going to manage failures.

Thanks to everyone that attended. For those that didn’t have the chance to attend or ask questions, please feel free to leave them in the comments section and we will do our best to answer them.

November 11, 2008

Reminder: Webinar Today!

Posted by: Brian Mullins

For those of you that may have forgot to put it on your calendars, Marathon and Citrix are holding a webinar today to showcase the benefits of virtualizing Microsoft Exchange servers. Event attendees will learn:

  • The benefits of virtualizing Microsoft Exchange, including why the new architecture of Exchange 2007 is designed more effectively for virtual environments
  • Real world benchmark data for Exchange Server sizing and growth planning that demonstrates the exceptional scalability and recoverability of Citrix XenServer 5 and everRun VM
  • How everRun VM’s software works with XenServer 5 to provide the only solution available today that delivers selectable availability and fault-tolerant protection for Exchange Serer running in virtual machines

The webinar will begin promptly at 11:30 a.m. EDT, so if you haven’t yet registered you can do so here.

For those that can’t attend, we will be posting the Q&A following the event.