May 05

Atlantis Computing Releases HyperScale

Today, Atlantis Computing moves into the hardware market with a new hyperconverged solution, HyperScale. HyperScale is based on the company’s flagship product, USX. Technically, this solution is not a revolution, but it is an evolution on Atlantis Computing’s part. This is the first time it has delivered an end-to-end bespoke solution that tightly couples certified hardware with its flagship USX product. More to the point, unlike most new entrants into this space, Atlantis has entered straight in with a full product set, multiple-hypervisor support, and three OEM deals. This is in addition to its own Supermicro-based in-house appliance. What’s more, HyperScale has a starting price that does not set your teeth on edge.

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May 05

NSX Packet Walks – VLAN Bridge

This is the fourth post in the NSX Packet Walks series. You probably want to start at the first post.

Up to now we have focused on the traffic from one VM to another VM somewhere within the NSX system, as well as how traffic moves between physical hosts. But what if you’re data centre isn’t 100% virtualised? Can you still use NSX? What are the constraints? This post will look at this question. Read the rest of this entry »

Apr 20

NSX Packet Walks – Replication Modes

This is the third post in the NSX Packet Walks series. You probably want to start at the first post or the second post.

Up to now we have focused on the traffic from one VM to another VM somewhere within the NSX system. I have skipped over the way traffic is distributed between hosts, and I haven’t discussed the ways that traffic can leave the NSX system. The next three posts will cover these topics.

This post will focus on the different methodologies available in NSX for dealing with BUM traffic. That is Broadcast, Unknown Unicast and Multicast traffic. This encompasses all traffic that doesn’t have a specific layer three address. In all three of these cases, the traffic is destined to touch anything up to all physical hosts in the cluster, and NSX has a few different ways of handling that traffic. Read the rest of this entry »

Apr 16

Managing and Monitoring Performance in SDN / NFV

We have all drunk the Kool-Aid. Software-defined networking (SDN), network functions virtualization (NFV), or both will save the world. They decouple us from the shackles of legacy networks to allow a utopia of business-driven requirements to freely flow, delivering value and freeing the network, application, storage, and infrastructure teams to have weekends off and time with their families.

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Apr 15

Beware, All You Other Clouds: Odin Wants His Cloud Back

Who would have thought it? Parallels, the developer of the Mac-based hosted virtualization product, had a service provider business. As of March 24, 2015, Parallels has split it off from its core business of selling hosted virtualization to Mac users and marketed it as “Odin.” Yes, Odin, the Norse god, king of Asgard. At first glance, this might seem slightly pretentious for a service provider.

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Apr 14

NSX Packet Walks Continued

This post is a continuation of the last post where I discussed a very simple virtual network, and a very simple VXLAN environment. If you haven’t already, you will want to read that post first. In this post I’m going to step it up a gear and introduce a virtual distributed router to the mix. This is a key part of NSX and the ability to create virtual networks on the fly without waiting for provisioning externally. It also makes for an interesting thought process when the “router” is distributed across all hosts. Read the rest of this entry »

Apr 13

VMware Security Advisory:- VMSA-2015-0003.1

New advisory for you and this one looks like a beast, I mean it seems to affect every VMware product other than vSphere ESXi. But to be fair this is more of an issue with Oracle JRE than the overlaying applications stack. And relate to an issue documented in Oracle’s Critical Patch Update Advisory of January 2015 which contained 169 security fixes. It is strongly recommended by Oracle that the patch is installed and by VMware that this patch is applied to any and all of the affected products listed below: Read the rest of this entry »

Apr 09

VSAN is Great, but their Licensing Sucks

On April 1st I tweeted that


And I still stand by this remark. Building and configuring a New VSAN is simple, even if you have to spend most of the morning in 4 machines LSI Bios configuring several single disk RAID0 groups and associated vDisks and then manually marking your SSD as such in ESXCLI. Read the rest of this entry »

Mar 28

Remember Remember, Edit your Host Profile before applying.

Well today I remembered something, well to be truthful, I remembered it five minutes after moving my new hosts into maintenance mode, applying my newly created host profile from my reference host, filling in the network details for all the port groups and VMkernel groups and clicking finish.

So what exactly did I remember? Well I remembered that before you apply a reference host profile to a host that is over 6000 miles away (well to be fair, even if it is under your desk or hosted on your desktop), always remember to remove the policy that relates to your primary management console. Why? I hear you ask.

rug Read the rest of this entry »

Mar 26

VMware Security Advisory – VMSA-2015-0001.2

I have not done any of these for a while, so here we go, this is a catch all advisory to close down an number of vulnerabilities,  the original advisory was released in january and this one adds a couple of new products that have been patched.  if your product is down as having an available patch, then update to close down the risk

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