Rabu, 26 Januari 2011

Clearing Up the Bad Reputation of VMware’s Paravirtualized Drivers

In 2009, not too long after the release of VMware vSphere 4.0, I blogged about the use of PVSCSI and VMXNET3; specifically, I mentioned reasons not to use PVSCSI and VMXNET3. A lot has changed since then, so—prompted by a reader who shall remain nameless but knows who he/she is—I thought it might be prudent or useful to post a brief update.


While vSphere 4.0 did not support either PVSCSI or VMXNET3 for use with VMware Fault Tolerance (FT), those restrictions were lifted with the release of VMware vSphere 4.1. This was mentioned a couple of times in the comments to the original article, but I did want to clarify it so that readers knew for sure. For more information, see pages 35 and 36 of the VMware vSphere 4.1 Availability Guide. PVSCSI is not explicitly called out there, but it also isn’t mentioned; VMXNET3 is specifically called out as supported with VMware FT.


In addition, the recommendation against using PVSCSI with low I/O workloads was also removed with vSphere 4.1. See the brief note in the Solution section of this VMware KB article.


Feel free to post any corrections or clarifications in the comments. In particular, if you have links to articles or documents with explicit mention of support for these paravirtualized drivers, feel free to share them for the benefit of all readers. Thanks!


This article was originally posted on blog.scottlowe.org. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies.

Clearing Up the Bad Reputation of VMware’s Paravirtualized Drivers


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Akismet Is That Much Prettier

When Akismet 2.5.2 was released, Joseph Scott mentioned that the team was working on something special that had not been changed since 2008. Yesterday, the Akismet team announced that the previous method of using Flash to generate the charts has disappeared. Instead, the graphs are now generated by something called flot.js which is an open source chart library built on jQuery.


New Graphs In Akismet


Using Flot.js gives the team more flexibility in determining how stats are displayed. The stats page also loads faster but the biggest improvement this new approach has is that any device that supports Javascript will be able to view the graphs.

WordPress Theme Releases for 1/21


254 is a clean and minimal WordPress and DukaPress e-commerce theme.



Adventure Journal allows you to select header art, backgrounds, and a one or two column layout from the comfort of your Dashboard.



Ghostwriter is a minimal theme focused on typography.



my base is a white theme that includes several features: custom menu, custom background, custom templates, custom headers and more.

WordPress 3.1 RC3 Released

The third WordPress 3.1 Release Candidate has been released.


There have been a few significant changes made since the second Release Candidate, including the removal of AJAX list tables, which introduced too many bugs and usability issues to be considered stable for 3.1


Because of the major changes, the developers are asking for as many beta testers as they can get.


If you run into any problems, please feel free to discuss them in the Alpha/Beta section of the Support Forums or contact the wp-testers mailing list. If you run into any bugs, please follow this guide to report them.


Have you tried WordPress 3.1 RC3 yet? If you have, what do you think so far? Are you ready for the final release of WordPress 3.1?

WordPress Theme Releases for 1/25


application is a very neat and clean white business theme.



bx is a very clean and professional free business theme that is great for all kinds of sites but perfect for bloggers and business websites.



Sanaa is a retro style WordPress e-commerce theme perfect for selling t-shirts and handmade items, designed to be a starting point for your online shop.

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