| Comments | Tag: ceph

Ceph performance: interesting things going on

The Ceph developer summit is already behind us and wow! so many good things are around the corner! During this online event, we discussed the future of the Firefly release (planned for February 2014). During the last OpenStack summit in Hong Kong, I had the opportunity to discuss with Sage a new feature that might go into Firefly. This was obviously discussed during the CDS too. His plan is to add a multi-backend functionality for the filestore. And trust me this will definitely bring Ceph to another level.

Read On...

| Comments | Tag: ceph

Ceph RBD objects placement

Quick script to evaluate the placement of the objects contained in a RBD image.

#!/bin/bash

# USAGE
# ./rbd-loc <pool> <image>

if [ -z ${1} ] || [ -z ${2} ];
then
    echo "USAGE: ./rbd-loc <pool> <image>"
    exit 1
fi

rbd_prefix=$(rbd -p ${1} info ${2} | grep block_name_prefix | awk '{print $2}')
for i in $(rados -p ${1} ls | grep ${rbd_prefix})
do
    ceph osd map ${1} ${i}
done

Read On...

| Comments | Tag: ceph

See you at the cephday in London

A quick post to tell everybody that I’ll be giving a presentation at the Ceph day in London. Obviously, I’ll be representing the company I work for, eNovance. The event is next Wednesday, October 9, 2013. I am going to talk about Ceph, performance and benchmarking. You can check the details and schedule of the event here. See you there!

Update: slides available through my employer’s blog (eNovance).

Read On...