Ceph Erasure Code Overhead Mathematics

Posted on Sat 30 November 2019 in hints-and-kinks • Tagged with Ceph

In a Ceph cluster, the frequent question, “how much space utilization overhead does my EC profile cause,” can be answered with very simple algebra.


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Learn Ceph — For Fun, For Real, For Free!

Posted on Sat 25 May 2019 in presentations • Tagged with Conference, Ceph, Open edX

My lightning talk from Cephalocon 2019.


Geographical Redundancy with rbd-mirror

Posted on Tue 21 May 2019 in presentations • Tagged with Conference, Ceph

My presentation from Cephalocon 2019.

Use the PgUp/PgDown keys to navigate through the presentation, hit Esc to zoom out for an overview, or just advance by hitting the spacebar.


More recommendations for Ceph and OpenStack

Posted on Thu 03 August 2017 in hints-and-kinks • Tagged with OpenStack, Ceph

Our series on best practices for Ceph and OpenStack continues.


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Importing an existing Ceph RBD image into Glance

Posted on Fri 17 February 2017 in hints-and-kinks • Tagged with Ceph, OpenStack

As an OpenStack/Ceph operator, you may sometimes want to forgo uploading a new image using the Glance API, because the process can be inefficient and time-consuming. Here's a faster way.


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