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Object Storage approaches for OpenStack Cloud: Understanding Swift and Ceph

Overview Many people confuse object storage with block-level storage such as iSCSI or FibreChannel (SAN), but there is a great deal of difference between them. While SAN exposes only block devices to the system (the /dev/sdb linux device name is a good example), object storage can be accessed only with a specialized client app (e.g., the box.com client app). Block storage is …

Implementing Encryption Architecture with Cisco Webex for OpenStack Swift object storage

This post is the first of an ongoing series on our engagement with Cisco Webex on their OpenCloud platform. One of the requirements for data center security is protection of "at rest" data. Usually this protection is about encrypting client-generated contents, including objects stored in the Swift cluster. In most cases, clients themselves could carefully encrypt their data; however, this requires …

Mirantis Cloud talks selected for OpenStack Summit San Diego 2012

We're priveleged to have had 3 talks based on our work selected for presentation at the OpenStack Summit October 15-18 2012. Check out these presentations, and we look forward to seeing you in San Diego! OpenStack Super BootCamp Monday October 15, 2012 3:40 pm - 6:00 pm Kirill Ishanov, Mirantis, Director OpenStack Services Engineering Built on the materials from the popular Mirantis OpenStack BootCamp …

Configuring Bare-metal Switches in OpenStack Cloud Networks: Bare-metal provisioning, part 4

In previous blog posts, we outlined a bare-metal provisioning framework for OpenStack (see: Beyond virtual machines and hypervisors,  Placement control and multi-tenancy isolation and Preparing images for bare-metal nodes using OpenStack Cloud). This time, we want to talk about networking. Normally, when you run virtual instances, OpenStack does the networking configuration for you. This is not the case with bare-metal provisioning, since …

Preparing Images for Bare Metal nodes using OpenStack Cloud: Bare-metal provisioning, Part 3

Recently we began a series of blog posts on OpenStack provisioning bare-metal instances (see: Beyond virtual machines and hypervisors and Placement control and multi-tenancy isolation). While installing VMs is relatively easy, as they support common image formats like OVF and qcow2, bare-metal servers are not always that simple. This article describes how to prepare images for bare-metal nodes. In the case …

What’s new in OpenStack Folsom: Webcast Thursday 4 Oct 2012

Date: Thursday 4 October 2012 Time: 9am PT/12 Noon ET/6pm CET The last six months have seen tremendous acceleration for OpenStack. Highlights include the RackSpace public cloud launch, Suse's and RedHat’s announced OpenStack distros, VMWare’s arrival and the OpenStack foundation launch. Now, with baseline features set and hardening for enterprise usage in place, the Folsom release marks OpenStack’s transition from a service provider …

Placement control and multi-tenancy isolation with OpenStack Cloud: Bare Metal Provisioning, Part 2

In a previous post, we introduced the bare-metal uses cases for OpenStack Cloud, using its capabilities. Here, we're going to talk about how you can apply some of these approaches to a scenario mixing virtualization with isolation of key components. Isolation requirements are pretty common for OpenStack deployments. And in fact, one can just say: "Without proper resource isolation you can …

Beyond Virtual Machines and Hypervisors: Overview of Bare Metal Provisioning with OpenStack Cloud

Many people refer to ‘cloud’ and ‘virtualization’ in the same breath, and from there assume that the cloud is all about managing the virtual machines that run on your hypervisor. Currently OpenStack supports Virtual Machine management through a number of hypervisors, the most widespread being KVM and Xen. As it turns out, in certain circumstances, using virtualization is not optimal—for example, …

You can help put Large Enterprise Cloud on the OpenStack Agenda

Voting is underway for the sessions to be presented in the OpenStack summit. It's time to make a difference and cast a ballot for some really terrific sessions -- and we're doing our part to ensure you know about ours. While you'll need to be a member of the foundation to vote, we've posted our session descriptions here, below: Cisco Webex Case …

OpenStack accepting VMware was a mistake

["The supreme art of war is to subdue the enemy without fighting." - Sun Tzu - In other news @VMware joins @openstack.] This tweet by @cloud_borat says it all. Subduing OpenStack is exactly what VMware did by joining the foundation. Every enterprise considering OpenStack that we ever encountered at Mirantis was primarily interested in OpenStack as an open alternative to proprietary VMware. While in …

Understanding your options: Deployment topologies for High Availability (HA) with OpenStack

When I was designing my first OpenStack infrastructure I struggled to find information on how to distribute its numerous parts across the hardware. I studied a number of documents, including Rackspace's reference architecture (which was once at http://referencearchitecture.org but now seems to be mothballed). I also went through the design diagrams presented in the OpenStack documentation. I must admit that back …

Some practical considerations for monitoring in OpenStack cloud

There is an old saying in IT: "Tough guys never do backups." While this kind of thinking doesn't prevent infrastructures from functioning, it's definitely asking for trouble. And the same goes for monitoring. Having gone through all the pain of polishing an OpenStack installation, I can see why it might seem like a better idea to grab a couple of beers …

Using Software Load Balancing in High Availability (HA) for OpenStack Cloud API Services

In two previous posts, my colleagues Oleg Gelbukh and Piotr Siwczak covered most of the ground on making OpenStack highly available (HA). If you haven't read those posts yet, it's a good time to do so: Oleg's post on OpenStack HA in general Piotr's post on MySQL and RabbitMQ HA. In this post, I'll offer some direct practical advice on completing the puzzle: …

OpenStack Cloud Storage Services: First Look at Folsom’s Cinder project

Introduction After the April Essex release, there's big change in planned for OpenStack's volume management; it is now called Cinder. Cinder is a new service for OpenStack, one that separates storage management logic. Until now, in the Essex release, this logic was a part of Nova, and was called the nova-volume component. But, as often happen in software, logical interdependencies between components within …

High Availability (HA) for OpenStack Platform Services MySQL + rabbitMQ

Oleg Gelbukh's last blog article gave us a bird's eye view of different aspects of high availability in OpenStack. Even though all OpenStack components are designed with high availability in mind, the software still relies on external software, such as the database and the messaging system. It is left up to the user to deploy them in a fail-proof manner. It …

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