Enterprises are moving more and more applications to the cloud. Gartner
predicts that the bulk of new IT spending by 2016 will be for cloud computing
platforms and applications and that nearly half of large enterprises will
have cloud deployments by the end of 2017.1
The far-reaching impact of cloud computing is summarized in a recent McKinsey
report on disruptive technologies: "Cloud technology has the potential to
improve productivity across $3 trillion in global enterprise IT spending, as
well as enabling the creation of new online products and services for
billions of consumers and millions of businesses alike."2
For many organizations, moving applications that can tolerate brief periods
of downtime to the cloud is a straightforward decision with clear benefits.
However, concerns about how to provide high availability and disaster
protection in the cloud may mak... (more)
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
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
Thanks again to those who joined us for last week’s webinar, "Windows
Server 2008 High Availability: Technology Comparison." The on-demand
recording of last week's webinar is now available to watch at your
We had a lot of good questions from our attendees during the Q&A portion of
the webinar, which are summarized below.
Q: How do you determine when to use an HA solution vs. a DR solution?
When it comes to availability vs. recovery, the most important question to
ask is what are your recovery time objectives (RTO)? What is the amount of
time your application c... (more)
Following the XenServer HA announcement, we’ve been approached with
questions like “How exactly does XenServer HA work?” and “How does
XenServer HA and everRun VM work together.” Rather than respond ourselves
we thought it would be best to point to a few fellow bloggers who have
already answered these questions.
First, here’s a good post written by Anil Madhavapeddy at Citrix discussing
how the overall architecture of XenServer HA works. Second, Scott Lowe has
put together a great summary of why Citrix and Marathon worked together to
develop XenServer HA.
If you want more detai... (more)