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Scott Lowe

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Top Stories by Scott Lowe

Scott Lowe's Blog There appear to be basically two views on how virtualization will affect the future development of operating systems and computing environments in the personal computing space. One camp believes that virtualization functionality will be present within the operating system. The other camp believes it will be outside the operating system, perhaps in the form of a hypervisor or thin virtualization layer that resides “below” the OS and governs access to hardware. There appear to be basically two views on how virtualization will affect the future development of operating systems and computing environments in the personal computing space. One camp believes that virtualization functionality will be present within the operating system. Whether that virtualization functionality comes bundled with the operating system or is a third-party add-on to the operat... (more)

Virtualization - Fibre Channel to Software iSCSI Failover Failures

Scott Lowe's Blog What I had hoped to be able to publish today would be an article describing how to configure and use ESX's software iSCSI initiator as a failover path for Fibre Channel, so that if the Fibre Channel fabric completely failed VM traffic would automatically failover to software iSCSI. I thought that this would be a great, low-cost way to add another layer of redundancy to your VMware ESX environment. Unfortunately, I can't make it work. A 200GB LUN visible to ESX over both Fibre Channel (FC) and software iSCSI A VM, stored on this LUN, running Windows Server 2003 R2 ... (more)

How to Rebuild a Home Network Integrating Ubuntu and Mac OS X

Scott Lowe's Blog One of my projects over the recent holiday was to rebuild the home network. Working on a home network is a different sort of beast than working on a network for a company. There are different challenges to be addressed. After research, I settled on the use of Ubuntu 8.04 LTS (”Hardy Heron”) for the server build. My primary goals for this “home network rebuild” were the following: Rebuild the home server with a newer version of Linux, and possibly switch to a different distribution. Continue to provide DNS, DHCP, HTTP, and HTTP proxying/content filtering services ... (more)

Virtualization Viewpoint: Security Challenges & Solutions

Scott Lowe's Blog In The Four Horsemen of the Virtualization Security Apocalypse, Chris Hoff shines a great big spotlight on the dark side of virtualization security (or virtsec, as its increasingly being known). To quote from Hoff’s article: "Short of the notions I’ve discussed previously regarding instantiating the vSwitches into hardware and loading physical servers with accelerators and offloaders for security functions, there aren’t a lot of people talking about this impending set of challenges or the solutions in the short or long term. This should be ca... (more)

VMware Announces OS for All Aspects of the Virtual Datacenter

Scott Lowe's Blog The way to really view VMware Virtual Datacenter OS (VDC-OS) is not as a “datacenter OS”, because it’s not intended to provide automation of non-virtual resources. Instead, look at VDC-OS as a framework. Within this framework are sets of services that can be extended or modified in very standardized ways (via APIs and SDKs) to provide different functionality for the applications running within that framework. What VMware is working on is an OS for the virtual datacenter, not a virtual OS for the datacenter. The distinction is important. VDC-OS isn’t intended to ... (more)