Open vSwitch-DPDK: How Much Hugepage Memory?

Introduction

In order to maximize performance of the Open vSwitch DPDK datapath, it pre-allocates hugepage memory. As a user you are responsible for telling Open vSwitch how much hugepage memory to pre-allocate. The question of exactly what value to use often arises. The answer is, it depends.

There is no simple answer as it depends on things like the MTU size of the ports, the MTU differences between ports, and whether those ports are on the same NUMA node. Just to complicate things a bit more, there are multiple overheads, and alignment and rounding need to be accounted for at various places in OVS-DPDK. Everything clear? OK, you can stop reading then!
However, if not, read on.

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Build your Software Defined Data Center with Red Hat CloudForms and Openstack – part 2

Welcome back, here we will continue with the second part of my post, where we will work with Red Hat Cloudforms. If you remember, in our first post we spoke about Red Hat OpenStack Platform 11 (RHOSP). In addition to the blog article, at the end of this article is also a demo video I created to show to our customers/partners how they can build a fully automated software data center.

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Build your Software Defined Data Center with Red Hat CloudForms and Openstack – part 1

In this blog, I would like to show you how you can create your fully software-defined data center with two amazing Red Hat products: Red Hat OpenStack Platform and Red Hat CloudForms. Because of the length of this article, I have broken this down into two parts.

As you probably know, every organization needs to evolve itself becoming a Tech Company, leveraging its own Digital Transformation, embracing or enhancing existing processes, evolving people’s mindset, people’s soft/hard skills and of course using new technologies.

Remember we are living in a digital era where if you don’t change yourself and your organization someone will disrupt your business!

So, how can I become disruptive in my business?

Well, speaking from a purely technical perspective a good approach should consider cloud technologies.

These kinds of technologies can be the first brick of your digital transformation strategy because they can grant business and technologies values.

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Using Falcon to cleanup Satellite host records that belong to terminated OSP instances

Overview

In an environment where OpenStack instances are automatically subscribed to Satellite, it is important that Satellite is notified of terminated instances so that is can safely delete its host record. Not doing so will:

  • Exhaust the available subscriptions, leading to unsubscribed hosts not being able to apply updates and security errata.
  • In the event that an emergency security errata needs to be deployed across the organization, Satellite administrators would be unable to determine if a host was either off or terminated, leading to uncertainty with their security posture.

In smaller environments, where one team is responsible for both OSP and Satellite, it’s possible to have one system administrator do this by using their administrator level access across both systems to determine which host records can be safely deleted in Satellite when the corresponding instance no longer exists.

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Integrating Red Hat OpenStack 9 Cinder Service With Multiple External Red Hat Ceph Storage Clusters

This post describes how to manually integrate Red Hat OpenStack 9 (RHOSP9) Cinder service with multiple pre-existing external Red Hat Ceph Storage 2 (RHCS2) clusters. The final configuration goals are to have Cinder configuration with multiple storage backends and support for creating volumes in either backend.

This post will not cover the initial deployment of OpenStack Cinder or the Ceph clusters.

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Repost | Red Hat Announces General Availability of Red Hat Enterprise Linux OpenStack Platform 5

Excerpts from the original article:

“Red Hat announced the general availability of Red Hat Enterprise Linux OpenStack Platform 5, the third enterprise release of Red Hat’s OpenStack offering, designed to serve as the foundation for building OpenStack-powered clouds for advanced cloud users, telecommunications companies, Internet service providers (ISPs), and public cloud hosting providers.

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Red Hat Provides Zanata Translation Support For OpenStack Project

You’ve probably already heard of OpenStack, the cloud operating system, where Red Hat is the top company contributor to the project. What you may not know is that Red Hat engineers develop an open source translation management platform called Zanata.

When Carlos Munoz from the Red Hat Zanata team heard that OpenStack localization (l10n) team were looking for a new alternative to their current translation platform, he went to the OpenStack Summit in Atlanta to introduce Zanata.

Read on for Carlos’ account of how Red Hat supports the OpenStack project in a somewhat special way.

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