Planet Ceph

Aggregated news from external sources

  • August 31st, 2014
    What cinder volume is missing an RBD object ?

    Although it is extremely unlikely to loose an object stored in Ceph, it is not impossible. When it happens to a Cinder volume based on RBD, knowing which has an object missing will help with disaster recovery. The list_missing command … Continue reading

  • May 5th, 2014
    Recovering from a cinder RBD host failure

    OpenStack Havana Cinder volumes associated with a RBD Ceph pool are bound to a host. cinder service-list –host bm0014.the.re@rbd-ovh +—————+———————–+——+———+——-+ | Binary | Host | Zone | Status | State | +—————+———————–+——+———+——-+ | cinder-volume | bm0014.the.re@rbd-ovh | ovh | enabled … Continue reading

  • May 3rd, 2014
    Non profit OpenStack & Ceph cluster distributed over five datacenters

    A few non profit organizations (April, FSF France, tetaneutral.net…) and volunteers constantly research how to get compute, storage and bandwidth that are: 100% Free Software Content neutral Low maintenance Reliable Cheap The latest setup, in use since ocbober 2013, is … Continue reading

  • November 19th, 2013
    Mixing Ceph and LVM volumes in OpenStack

    Ceph pools are defined to collocate volumes and instances in OpenStack Havana. For volumes that do not need the resilience provided by Ceph, a LVM cinder backend is defined in /etc/cinder/cinder.conf: [lvm] volume_group=cinder-volumes volume_driver=cinder.volume.drivers.lvm.LVMISCSIDriver volume_backend_name=LVM and appended to the list … Continue reading

Careers