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Ceph Cookbook - Second Edition by Karan Singh, Michael Hackett, Vikhyat Umrao

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Understanding the Ceph Filesystem and MDS

The Ceph Filesystem offers the POSIX-compliant distributed filesystem of any size that uses Ceph RADOS to store its data. To implement the Ceph Filesystem, you need a running Ceph storage cluster and at least one Ceph Metadata Server (MDS) to manage its metadata and keep it separated from data, which helps in reducing complexity and improves reliability. The following diagram depicts the architectural view of Ceph FS and its interfaces:

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The libcephfs libraries play an important role in supporting its multiple client implementations. It has the native Linux kernel driver support, and thus clients can ...

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