The Ceph Blog

Ceph blog stories provide high-level spotlights on our customers all over the world

  • October 10, 2017
    New in Luminous: CephFS metadata server memory limits

    The Ceph file system uses a cluster of metadata servers to provide an authoritative cache for the CephFS metadata stored in RADOS. The most basic reason for this is to maintain a hot set of metadata in memory without talking to the metadata pool in RADOS. Another important reason is to allow clients to also …Read more

  • October 2, 2017
    New in Luminous: CephFS subtree pinning

    The Ceph file system (CephFS) allows for portions of the file system tree to be carved up into subtrees which can be managed authoritatively by multiple MDS ranks. This empowers the cluster to scale performance with the size and usage of the file system by simply adding more MDS servers into the cluster. Where possible, …Read more

  • September 20, 2017
    New in Luminous: Multiple Active Metadata Servers in CephFS

    The Ceph file system (CephFS) is the file storage solution for Ceph. Since the Jewel release it has been deemed stable in configurations using a single active metadata server (with one or more standbys for redundancy). Now in Luminous, multiple active metadata servers configurations are stable and ready for deployment! This allows the CephFS metadata …Read more

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