Ceph as alternative for NBD and NFS

Hi there,

I would like to add a blueprint and implementation for adding Ceph/RBD and
CephFS support to LTSP.

Ceph provides a distributed redundant storage cluster, which uniquely
delivers object, block, and file storage in one unified system. Ceph
delivers extraordinary scalability–thousands of clients accessing petabytes
to exabytes of data. A Ceph Node leverages commodity hardware and
intelligent daemons, and a Ceph Storage Cluster accommodates large numbers
of nodes, which communicate with each other to replicate and redistribute
data dynamically.

Even client connections are fault tolerant, so a "network share" will
continue to be available, even it the server you are currently connected to
goes offline. It's scalability makes it a perfect match for storing student
data of a whole school or university. The fully redundant nature of Ceph
increases fault tolerance both for NFS-like home directories and NBD-like
root images.

   - The fully POSIX compliant CephFS (file storage layer) can server as a
   perfect replacement for NFS.
   - RDB - Rados Block Devices (block storage layer) can serve as a
   replacement for NBD.

I'd like to add the blueprint to the Wiki, but do not have Dev privileges
yet.

I am currently commissioning a Ceph backed LTSP cluster, so I will be
implementing this in the coming weeks for myself, but I would love to see
it included upstream.

My best regards,
Markus

--

Markus Kienast - CEO

FLANEUR TV
<[email protected]>mark@f <[email protected]>laneur.tv
+43 699 18084401

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