Latest Posts

DRS Keeps Admins Happy

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DRS is not just about keeping VMs happy.  DRS has many other operational benefits that keep your admins happy too. Let’s dive into the top ways that DRS makes the day in the life so much better for the vSphere admin. Read more...

VMware NSX: Virtual Network Architecture for SAP HANA and Mission Critical Deployments

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SAP HANA Network Design Considerations In keeping with the theme of moving the Software-Defined Data Center from concept to reality, I discussed in my previous blogs why VMware vSphere is the perfect platform to deploy cutting edged technologies like SAP HANA. This is because vSphere enables our customers to agilely react to rapidly changing hardware/software Read more...

SSLv3 Protocol Disabled by Default in vSphere 5.5 Update 3b

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Background Why has the SSLv3 protocol been disabled by default in vSphere 5.5 Update 3b? Across the industry, enterprise software products and solutions are dropping use of and support for the SSLv3 protocol. The Internet Engineering Task Force (IETF) officially deprecated the SSLv3 protocol in RFC 7568 due to its obsolescence and inherent unfixability. Instead, Read more...

Eight Myths about Virtualizing Hadoop Dispelled

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This article takes eight common misperceptions about virtualizing Hadoop and explains why they are errors in people’s understanding. The short explanations given should serve to clear up the understanding about these important topics. Myth #1: Virtualization may add significant performance overhead to a Hadoop cluster. This is a common question from users who are in the Read more...

SDDC Security Operations class from VMware Education

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Hey everyone! I know, it’s been a while since I blogged. It’s been an insanely busy time here at VMware, especially for vSphere security. VMworld US and Europe vSphere security sessions were very popular! And since then, I’ve been traveling a whole bunch, meeting customers and talking about security operations. A recurring ask has been Read more...

Crash consistent backups and database cloning with Virtual Volumes

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In the first part of this series we provided a high level view of the benefits of using Virtual Volumes enabled storage for database operations. In the second part of this series we examined in more detail how Virtual Volumes can improve the backup and recovery capabilities for business critical databases, specifically Oracle. The backups Read more...

Virtualizing Big Data at VMware IT – Starting Out at Small Scale

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The Hadoop-based system running on vSphere that is described here was architected by Rajit Saha, (who provided the material for this blog) and a team from VMware’s IT department. This article describes the technical infrastructure for a VMware internal IT project that was built and deployed in 2015 for analyzing VMware’s own business data.. Details Read more...

vCPU to pCPU Ratios – Are they still relevant?

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One question I’m commonly asked (aka weekly if not daily) is what are the perfect pCPU to vCPU ratios that I should plan for, and operate to, for maximum performance.  I wanted to document my perspective for easy future reference. The answer? There is no common ratio and in fact, this line of thinking will Read more...