OpenStack Nova and availability zones
Availability zone in OpenStack. The main purpose of this article is to play a bit with availability zones.
Read more →Ceph and memory profiling
How to use a memory profiler to track memory usage of Ceph daemons!
Read more →Sound problems with Chrome 24 on Mac OS X 10.8.2
Shortest article ever written on my blog… From time to time I notice that switching from my audio local source to my Airplay station (and the other way around) somehow muted the sound on …
Read more →Disable CephX for v0.55 and higher
A lot of new features came with the version 0.55 of Ceph, one of them is that CephX authentication is enable by default. If you run v0.48 Argonaut without CephX and want to update to the latest …
Read more →OpenStack maintenance mode
Some tips for performing smooth maintenance in OpenStack.
Read more →Logging in Ceph
Configure logging in Ceph.
Read more →Happy New Year 2013
2012 was a really exciting year full of good stuff. But 2013 is already well on its way, so let’s not waste time and jump right in to whatever 2013 may bring! First of all, I wish to everyone …
Read more →Christmas break
Quick post to say that next week, I’m off. So don’t expect any blog posts, and you should not! You should enjoy Christmas magic and brace yourself for new year eve ;-). I’ll see you …
Read more →Where does my instance run?
Several way to know where your instances run.
Read more →NFS attribute caching performance impact on web applications
A couple of days ago, I had some issues with NFS consistency, not every servers were up to date. Some servers had the good version of the file some hadn’t. However performing a ls -l seemed to …
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