Day: October 23, 2013

Adding, moving and removing disks in a Ceph cluster can easily be automated and require no manual intervention. New disks are formatted when the configuration tool ( Puppet, Chef etc. ) notices they are unknown according to ceph-disk. When disks are removed for whatever reason, Ceph recovers the information it contained, as expected. If disks are hot plugged from one machine to another, udev rules will automatically allow them to rejoin the cluster and update the crush map accordingly.
Continue reading “Fully automated disks life cycle in a Ceph cluster”