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Managing a multi-hypervisor datacenter is chaotic - like 32 out-of-sync metronomes.
Dierbergs switched from vSphere to Hyper-V in an effort to reduce licensing costs, but ultimately returned to VMware when the promise of "good enough" failed to materialize.
Multi-hypervisor data centers are on the decline, despite what you may be hearing from motivated challengers to the market leader.
Hilarious series of polygraph videos with Microsoft employee under interrogation.
Both vSphere and Hyper-V offer a capability to move running virtual machines and storage in a single operation, but virtual disks on local storage cannot be protected by HA.
New book on vSphere 5 covers a variety of technical aspects needed for effective virtual infrastructure design and administration.
VMware removed vRAM entitlements from vSphere licensing; applies to existing 5.0 as well as 5.1 environments.
Fault tolerant virtual machines can protect key elements of an infrastructure today, while Windows Hyper-V offers only criticism, press releases, and vaporware.
With the launch of vSphere 5.1, VMware is neutralizing the controversial vRAM-based licensing model and reverting to the former per-socket arrangement. Tad is busy updating his sales and marketing collateral.
Microsoft tried to compare storage performance results from the upcoming Windows Hyper-V 3 with experiments from a year-old vSphere whitepaper that used completely different configurations -- see what happens when similar configurations are used.
Todd and Sreekanth from the VMware Performance Team talk about vMotion, with a guest appearance by Eric Gray.
New book on vCenter Orchestrator from Cody Bunch shows how to automate vSphere tasks. WIN one of ten copies!
Virtualizing vSphere enables many possibilites for learning and experimenting. What you *you* doing with nested virtualization?
Side-by-side tests show that VMware vMotion is over 5 times faster than Hyper-V Live Migration. Plus, vMotion is more reliable and protects application SLAs much better than Hyper-V.
Independent tests show VMware vSphere 5 outperforms Hyper-V R2 SP1 in overall performance, resource management, and scalability.
VMware vSphere 5 introduces a new license report for vRAM. Unfortunately, the report does not display properly when using the Linux-based vCenter Server Virtual Appliance until a small workaround is executed.
VMware vSphere 5 makes it even easier to virtualize ESXi, and can now run nested 64-bit guests.
A recent article on a popular technology media outlet includes misinformed claims about Hyper-V Dynamic Memory advantages over VMware vSphere.
Learn Microsoft's trick behind the claim that VMware vSphere costs as much as five times more than Hyper-V.
When using the VMware vSphere Distributed Switch, ephemeral port groups offer a capability not found in the other two binding options.
Network teaming provides load balancing and fault tolerance to your virtual infrastructure. VMware vSphere provides powerful, elegant solutions to meet the most demanding requirements. The Hyper-V platform continues to rely on unsupported legacy technologies.
Some newcomers to virtualization don't know that VMware vSphere is the combination of VMware ESXi and vCenter Server. By launching a complete virtualization infrastructure platform, VMware can offer more advanced capabilities than the staggered Hyper-V releases from Microsoft.
Latest InfoWorld comparison of all major virtualization platforms puts VMware vSphere on top!
VMware vSphere Resource Pools are a proven means to reliably share infrastructure. Hyper-V requires administrators to manage CPU reservations and limits on an individual VM basis.
Use Tech Support Mode on VMware ESXi to find, start, and obtain guest OS IP address information from a virtual machine -- without using the vSphere Client on Windows.
A couple of VMware vSphere features can help ensure your virtual infrastructure starts up well after a significant datacenter power event.
Hyper-V Dynamic Memory is coming in SP1, but workarounds may be needed to install applications.
Director of Microsoft Virtualization says vSphere hybrid clouds remind him of ancient fax machines, overlooking reality of current IaaS landscape.
Microsoft claims that Linux guests running on Hyper-V are fully supported -- find out what really happens when a customer tries to get help with a SLES VM.
Gartner says Hyper-V not meeting expectations even in midmarket, VMware doing pretty well.
VMware Operating System Specific Packages (OSPs) are an alternative to the VMware Tools bundled with vSphere. Pre-built packages are available for SLES for VMware (SLES 11 SP1) and easy to install.
SLES for VMware is an enterprise-class Linux distribution suitable for any production workload and available for free to qualifying vSphere customers.
A new feature in vSphere 4.1 allows administrators to easily perform a cold conversion (V2V) of a Hyper-V virtual machine.
Maximum vSphere is Eric Siebert's newest book and a must-have for any vSphere administrator.
Roundup of recent VMware vSphere 4.1 reviews and competitive evaluation resources.
Red Hat Enterprise Virtualization does not allow administrators to diversify storage technologies in a data center -- all hosts in a data center must choose between NFS, iSCSI, or Fibre Channel.
Red Hat Enterprise Virtualization users may opt for a full installation of Red Hat Enterprise Linux as a hypervisor host. Besides adding extra cost, RHEL KVM packages and management tools are incompatible with RHEV and must be replaced.
Red Hat Enterprise Virtualization is a new competitor to VMware vSphere. After almost half a year on the market, is anyone using it?
VMware ESX 4 can virtualize itself, and by using a special undocumented configuration setting it is now possible to take snapshots of virtual VMware ESX 4 systems.
Microsoft has broken through numerous technological barriers, enabling Windows/Hyper-V to directly execute Linux applications.
Learn about Microsoft's attempt to implement memory overcommit in Hyper-V.
Certain errors and warnings in the vSphere Client now provide links directly to VMware KB articles with more details on the specific issue.
Review of Steve Jin's new book on the VMware VI SDK. A great development resource, and administrators may improve their overall understanding of VMware vSphere and PowerCLI scripting.
VMware vCenter CapacityIQ 1.0.1 is now fully integrated with VMware vSphere. The product deploys quickly as an OVF virtual appliance and the user interface is a vSphere Client plugin.
VMware vSphere 4 offers multiple options for expanding virtual machine storage with zero downtime, including the ability to grow a running virtual disk. Hyper-V marketing literature makes a similar claim, but is limited to simply adding another virtual disk.
A new paper published by the VMware Performance Team shows that virtual disks using vStorage Thin Provisioning perform nearly as well as fully allocated thick disks.
With VMware vSphere, ESX, and VMFS, running out of space on a datastore does not cause damage to virtual machines. It is easy to recover without even a guest OS reboot.
When a datastore in your VMware vSphere environment is about to fill up, you can have vCenter automatically spring into action to prevent downtime by using Storage VMotion.
VMware vSphere 4 offers thin provisioned virtual disks backed by management that enables safe use in a production environment thanks to advanced accounting of all provisioned space.