OpenStack Summit Austin: Time To Vote
The summit is almost there and it is time to vote for the presentation you want to see :).
Read more →Easily deploy containerized Ceph daemons with Vagrant
This weekend I just pushed a new feature in ceph-ansible, which adds the ability to deploy containerized Ceph daemons.
Read more →Use Ansible to configure containers
Typically, when we build a container image we have 2 main files: Dockerfile is the essence of the container, it is what the container is made of, it generally contains packages installation steps and …
Read more →Ceph: Modification Time of RBD Images
Get the modification time of a RBD image.
Read more →Ceph CRUSH rule: 1 copy SSD and 1 copy SATA
Following last week article, here is another CRUSH example. This time we want to store our first replica on SSD drives and the second copy on SATA drives.
Read more →Ceph CRUSH two copies in one rack
Quick CRUSH example on how to store 3 replicas, two in rack number 1 and the third one in rack number 2.
Read more →Ceph: properly remove an OSD
Sometimes removing OSD, if not done properly can result in double rebalancing. The best practice to remove an OSD involves changing the crush weight to 0.0 as first step.
Read more →Ceph is moving outside DevStack core to a plugin
Ceph just moved outside of DevStack in order to comply with the new DevStack’s plugin policy. The code can be found on github. We now have the chance to be on OpenStack Gerrit as well and thus …
Read more →Ceph: find an OSD location and restart it
When you manage a large cluster, you do not always know where your OSD are located. Sometimes you have issues with PG such as unclean or with OSDs such as slow requests. While looking at your ceph …
Read more →Five useful new features from Ceph Infernalis
Infernalis has just been released a couple of weeks ago and I have to admit that I am really impressed of the work that has been done. So I am going to present you 5 really handy things that came out …
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