Skip to main content

CIO weblog: The Virtual Future

The article posits a future in which all our needs are met virtually, a bit like the 1950's vision of a flying car that could whisk Dad to work downtown in the morning, allow Mom to make a quick trip for groceries in the evening, and fly the whole family up-state for the weekend getaway. Given the power of today's hardware and the relative inefficiency of traditional operating system design and utilization, this paints a fairly attractive prospect for many CIOs and responsible corporate officers. Virtualizing a number of specialized server systems on a single piece of hardware presents, as we all know by now, considerable cost savings. But until recently, you were still losing performance in most virtualized environments due to the need to run a base OS with the virtualization software atop it-a sort of silver thread tying the virtualized utopia back to the dark and dreary real world.


Link to CIO-weblog

Comments

Popular posts from this blog

Security: VMware Workstation 6 vulnerability

vulnerable software: VMware Workstation 6.0 for Windows, possible some other VMware products as well type of vulnerability: DoS, potential privilege escalation I found a vulnerability in VMware Workstation 6.0 which allows an unprivileged user in the host OS to crash the system and potentially run arbitrary code with kernel privileges. The issue is in the vmstor-60 driver, which is supposed to mount VMware images within the host OS. When sending the IOCTL code FsSetVoleInformation with subcode FsSetFileInformation with a large buffer and underreporting its size to at max 1024 bytes, it will underrun and potentially execute arbitrary code. Security focus

OS Virtualization comparison: Parallels' Virtuozzo vs the rest

Virtuozzo's main differentiators versus hypervisors center on overhead, virtualization flexibility, administration and cost. Virtuozzo requires significantly less overhead than hypervisor solutions, generally in the range of 1% to 5% compared with 7% to 25% for most hypervisors, leaving more of the system available to run user workloads. Customers can also virtualize a wider range of applications using Virtuozzo, including transactional databases, which often suffer from performance problems when used with hypervisors. On the administration side, customers need to manage, maintain and secure just a single OS instance, while the hypervisor model requires customers to manage many OS instances. Of course, the hypervisor vendors have worked hard to automate much of this process, but it still requires more effort to manage and maintain multiple operating systems than a single instance. Finally, OS virtualization with Virtuozzo has a lower list price than the leading hypervisor for comme...