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List:       fuse-devel
Subject:    [fuse-devel] Announcement: ClusterTech Parallel Filesystem open-source release
From:       ClusterTech CPFS team <cpfs () clustertech ! com>
Date:       2017-09-18 0:34:19
Message-ID: 99455f56-c7ba-b672-ce07-511e2640eb8a () clustertech ! com
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Hello,

We would like to announce the first open-source release (1.2.1) of the
ClusterTech Parallel Filesystem (CPFS), a high-performance distributed
parallel filesystem which is fault tolerant while being very easy to set up.

A CPFS cluster consists of 1 or 2 (preferred) meta-data server, and a
multiple of 5 data servers (compile time constant for now).  Meta-data
servers store directory data and replicate them like a RAID-1 disk
array.  Data servers store file data and replicate them like a RAID-5
disk array.  The server data is accessed via FUSE-based clients. 
Node-local cache provided by FUSE is used, with cache coherency
implemented.  Meta-data is fully coherent.  Close-to-open coherency is
implemented for data.

The software supports automatic failover and data resynchronization upon
server crash and recovery.  At present, the system is not responsive
during resynchronization.  (We are now trying to modify the software to
allow partially online resynchronization.)  Unlike an actual disk array,
the replication is file-level, allowing fast system recovery if the
amount of data to resync is not large.

The project is hosted in GitHub, and is under the AGPL 3.0 license:

    https://github.com/clustertech/cpfs-os

There you can find installation and usage guidelines, build
instructions, pre-built packages, system design documentation and
development instructions.

We love to hear your comments!  You can contact us by sending an E-mail
to cpfs@clustertech.com.

-- 
Regards,
Isaac
(Representing the ClusterTech CPFS team)


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    <p>Hello,</p>
    <p>We would like to announce the first open-source release (1.2.1)
      of the ClusterTech Parallel Filesystem (CPFS), a high-performance
      distributed parallel filesystem which is fault tolerant while
      being very easy to set up.<br>
      <br>
      A CPFS cluster consists of 1 or 2 (preferred) meta-data server,
      and a multiple of 5 data servers (compile time constant for now).  
      Meta-data servers store directory data and replicate them like a
      RAID-1 disk array.   Data servers store file data and replicate
      them like a RAID-5 disk array.   The server data is accessed via
      FUSE-based clients.   Node-local cache provided by FUSE is used,
      with cache coherency implemented.   Meta-data is fully coherent.  
      Close-to-open coherency is implemented for data.<br>
      <br>
      The software supports automatic failover and data
      resynchronization upon server crash and recovery.   At present, the
      system is not responsive during resynchronization.   (We are now
      trying to modify the software to allow partially online
      resynchronization.)   Unlike an actual disk array, the replication
      is file-level, allowing fast system recovery if the amount of data
      to resync is not large.<br>
      <br>
      The project is hosted in GitHub, and is under the AGPL 3.0
      license:<br>
      <br>
             <a class="moz-txt-link-freetext"
        href="https://github.com/clustertech/cpfs-os">https://github.com/clustertech/cpfs-os</a><br>
      <br>
      There you can find installation and usage guidelines, build
      instructions, pre-built packages, system design documentation and
      development instructions.<br>
      <br>
      We love to hear your comments!   You can contact us by sending an
      E-mail to <a class="moz-txt-link-abbreviated"
        href="mailto:cpfs@clustertech.com">cpfs@clustertech.com</a>.<br>
    </p>
    <pre class="moz-signature" cols="72">-- 
Regards,
Isaac
(Representing the ClusterTech CPFS team)
</pre>
  </body>
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