Cisco? HP? IBM? Choose one and only one

In this newsletter we will discuss how the concept of dynamically moving VMs is causing us to lose sleep.

In the last couple of newsletters we discussed some of the long-standing concepts that underlie cloud computing. We also discussed a few somewhat newer concepts, such as the dynamic movement of virtual machines (VM). In this newsletter we will discuss how the concept of dynamically moving VMs is causing us to lose sleep.

There is no doubt that the ability to dynamically move VMs between physical servers either over a LAN or a WAN is exceptionally powerful as it allows the IT organization to:

  • Optimize IT resources for maximum utilization, flexibility and availability.
  • Allow IT organizations to perform hardware maintenance without scheduled downtime.
  • Improve performance by moving virtual machines away from failing or under-performing servers.

There is also no doubt that it is extremely difficult to dynamically move servers between physical servers in part because it is not just the VM that has to be moved. As part of migrating a VM from one server to another, the IT organizations has to ensure that the migrated VM retains the same security, storage access and QoS configurations and policies as it had previously. If some form of server load balancing is being performed, another challenge is to ensure that the server load balancer can account for the fact that one or more VMs have been moved. If an application firewall was protecting the VM prior to its being moved, an equivalent application firewall must be in place to protect the VM after it has been migrated. If an IT organization is performing specific logging and/or auditing as a way of ensuring PCI compliance, then that functionality would have to migrate along with the VM that hosts the application.

As noted, ensuring that as a VM migrates from one physical server to another, that all of the requisite functionality follows it is extremely difficult. The only way that this will happen, if indeed it does, over the next few years is if IT organizations keep the environment as simple as possible. This means that IT organizations must choose one primary vendor for their virtualized data center. That is setting up to be a choice between HP, IBM and friends such as Juniper, and Cisco and friends such as VMware and EMC.

We do think the benefits of a virtualized data center are compelling. However, we also think that having to choose between Cisco, HP and IBM will be a wrenching decision for many IT organizations.

The following URLs point to a couple of exceptionally lucid and insightful discussions of cloud computing and the associated risks.

Join the Good Gear Guide newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags HPvitual machines (VM)IBMcisco

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?