Planet Ceph

Aggregated news from external sources

  • April 11, 2013
    The Ceph Chef Experiment

    Sometimes it’s most interesting to just dive in and see what breaks. There’s a Chef cookbook for Ceph on github which seems rather more recently developed than the one in SUSE-Cloud/barclamp-ceph, and seeing as its use is documented in the Ceph manual, I reckon that’s the one I want to be using. Of course, the README says “Tested …Read more

  • March 28, 2013
    Ceph is in EPEL, and why Red Hat users should care

    EPEL is Extra Packages for Enterprise Linux, a project that ports software that is part of the Fedora community distribution to the slower-moving RHEL (Red Hat Enterprise Linux) distribution (and its derivatives) used by many enterprises. One problem for RHEL users is that although the distribution tends to be rock solid, that stability comes at […]

  • March 28, 2013
    Supporting Ceph With new hastexo Partnership

    Today, I am excited to announce our partnership with hastexo who provides Ceph-related professional services world-wide. We have been working closely with hastexo for some time, including collaboration on the development of new Ceph courseware for new Inktank training courses that are now available. hastexo is a professional services company located in Austria and serving customers on five continents. The […]

  • March 25, 2013
    Puppet modules for Ceph finally landed!

    Quite recently François Charlier and I worked together on the Puppet modules for Ceph on behalf of our employer eNovance. In fact, François started to work on them last summer, back then he achieved the Monitor manifests. So basically, we worked on the OSD manifest. Modules are in pretty good shape thus we thought it was important to communicate to the community…. Read more →

  • March 21, 2013
    Inktank’s Roadmap for Ceph: Massive scale with Minimal effort

    It’s been just over a year since Inktank was formed with a goal of making Ceph the ‘Linux of Storage’. But while Inktank is a young company, Ceph itself has a longer history, going back to Sage Weil’s PhD in 2005. The intervening years saw much of the engineering work focused on building the foundations […]

  • February 14, 2013
    Deploying Ceph with ComodIT

    At this year’s Cloud Expo Europe I had a nice chat with the guys from ComodIT who are making some interesting deployment and orchestration tools. They were kind enough to include their work in a blog post earlier this week and give me permission to replicate it here for your consumption. As always, if any […]

  • February 14, 2013
    v0.56.3 released

    We’ve fixed an important bug that a few users were hitting with unresponsive OSDs and internal heartbeat timeouts.  This, along with a range of less critical fixes, was sufficient to justify another point release.  Any production users should upgrade. Notable changes include: osd: flush peering work queue prior to start osd: persist osdmap epoch for […]

  • February 13, 2013

    So many people have been asking us for more details on CRUSH, I thought it would be worthwhile to share more about it on our blog. If you have not heard of CRUSH, it stands for “Controlled Replication Under Scalable Hashing”. CRUSH is the pseudo-random data placement algorithm that efficiently distributes object replicas across a […]

  • February 12, 2013
    Ceph Comes to Synnefo and Ganeti

    During my most recent schlep through Europe I met some really great people, and heard some awesome Ceph use cases. One particularly interesting case was the work the guys at Synnefo shared with me at FOSDEM that they have been doing with Ganeti and RADOS. They were nice enough to write up some of the […]

  • February 8, 2013
    Introducing ceph-users

    Hi! It’s me again, your friendly Ceph community manager. Lately I’ve gone off the deep end collecting data about activity and participation from our mailing lists, IRC channel, and git repository. I think they’re interesting and I’d like to start regularly sharing what I see. Today I’m going to focus on some interesting trends from […]

  • February 6, 2013
    DreamObjects Case Study Webinar

    I’m excited to announce that this coming Thursday at 10am PST, I will be guest hosting a case study webinar with Inktank on DreamHost’s cloud storage product, DreamObjects. For those that don’t know me I’m the lead systems engineer for DreamObjects and have been working with Ceph since 2010. We’re proud to be running a 2 petabyte Ceph cluster […]

  • February 4, 2013
    Ceph Bobtail JBOD Performance Tuning

    Contents Introduction System Setup Test Setup 4KB Results 128KB Results 4MB Results Results Summary Conclusion INTRODUCTION One of the things that makes Ceph particularly powerful is the number of tunable options it provides. You can control how much data and how many operations are buffered at nearly every stage of the pipeline. You can introduce […]