Make a volume persistent on reboot
Quick and short introduction to a well known bug in nova-volume. I simply want to point it out because I think it could be useful.
Ceph cli output analysis
Brief analysis of the ceph -s command :)
Ceph benchmarks
The time has come to perform some benchmark with Ceph. You expect (or not), they are there, my Ceph’s benchmarks!
Ceph: maintenance mode, use case and common operations
Quick tips about how to manage a production environement. A simple use case here put your ceph journal on a SSD on a production cluster while clients are writting.
Ceph admin socket
The release of the first stable version of Ceph brought a lot of improvment at admin socket level. This is a really useful command that you should use.
Ceph tip: build your monitor map
If you want to change or rebuild a new set of monitor servers, you will need to manipulate the monmap. This monmap is exchange between every monitors.
Tip Ceph: public/private network configuration
While strolling within the ceph mailing list, I came accross something really useful, something that I was looking for :)
Tip: watch your nova log at the same time
I never thought about blogging this, but I think it can be useful for those of you who don’t know this little tool called: Multitail.
Make the network of your VMs fly with the virtio driver
Bring gigabit to your VM’s NIC!
RBD objects analysis
A little bit more about RBD objects…