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
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 ser... (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)
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 virt... (more)