How to enable Ceph RBD mirroring

Lots of talk but not a lot of info online. This worked for me I’m enabling replication t pool level here. Not only images that have the ‘journaling’ feature enabled will be mirrored irrespective of the state of your pool. So to clarify, you need to enable replication on the pool AND enable the journaling […]

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Throttle RBD Export

RBD export works great, sometimes too great and can overload the disks it’s writing too, if those disks happen to be serving say VM’s then goodnight VM. Solution – Use https://github.com/Phredward/throttle Example – Export at 50MB\s rbd export volumes/volume-371b6662-1bc2-4dad-8545-c30ec1f0bfce – | python /root/throttle.py –bandwidth=52428800 > /data/MyExportedImage.img

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