Planet Ceph

Aggregated news from external sources

  • 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
    CEPH – THE CRUSH DIFFERENCE!

    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 […]

  • January 30, 2013
    v0.56.2 released

    The next bobtail point release is ready, and it’s looking pretty good.  This is an important update for the 0.56.x backport series that fixes a number of bugs and several performance issues.  All v0.56.x users are encouraged to upgrade. Notable changes since v0.56.1: osd: snapshot trimming fixes osd: scrub snapshot metadata osd: fix osdmap trimming […]

  • January 22, 2013
    Ceph Bobtail Performance – IO Scheduler Comparison

    Contents Introduction System Setup Test Setup 4KB Results 128KB Results 4MB Results Results Summary Conclusion INTRODUCTION One of the strangest things about the holidays is how productive I am. Maybe it’s the fact that Minnesota is bitterly cold this time of year, and the only entertaining things to do outside often involve subzero winds rushing […]

  • January 18, 2013
    Our First Webinar – Getting Started With Ceph

          Yesterday was another milestone for our Inktank scrapbook. We hosted our first webinar titled “Getting Started with Ceph”. Our technical marketing engineer/overall nice guy @klivansky presented the webinar, which lasted one hour and covered the basics of getting setup with Ceph. He covered… An introduction into Ceph and Inktank A description of the […]

  • January 16, 2013
    Building a Public AMI with Ceph and OpenStack

    In an effort to show people how OpenStack and Ceph work together I decided it would be fun to build an Amazon Machine Image (AMI) for their Elastic Compute Cloud (EC2). This would give folks the ability to showcase the integration, end users a working example, and developers a potentially easy starting environment to build […]

  • January 14, 2013
    Ceph from PoC to Production

    Through this article I’m delighted to introduce a new category on the Ceph blog called User Story. The aim of this category is to offer general feedback to centralized users . The structure of the article is as follows: Introduction: who am i and what I am doing Company introduction and business (not mandatory) Ceph use case: what […]

  • January 9, 2013
    The Momentum Continues to Accelerate for Inktank and Ceph

    We launched Inktank in 2012 to provide enterprise-level support for the Ceph distributed storage system. Last year we witnessed a major increase in the adoption and interest in Ceph. It truly was a momentous year for us and I am thrilled to be able to share with you some of those highlights as we start 2013 […]

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