Pegging CloudStor’s inter-operability on Reva

Mr Brad Marshall1, Mr Gavin Kennedy1

1AARNet, Canberra, Australia

Since CloudStor was scaled up to provide a universal data storage and sharing platform across the entire Australian public research sector a frequent question has been “Can we add our storage to it?”. With the re-architecture of the CloudStor, the answer will be “definitely”.

CloudStor is built using two key technologies: the CERN EOS geographically distributed file system and the ownCloud EFSS (Enterprise File Sync and Share) software. Recently CERN have improved the EOS-EFSS interaction through Reva, a project dedicated to create a platform that makes cloud storage and application services inter-operable.

For CloudStor this will be a vast improvement on our scalability. The current version relies upon a cache model incurs performance issues as the scale increases. Working with CERN and ownCloud we are switching to a cache-free model in which file transactions happen against the file system in real time. CERN have proven this approach by storing and sharing data generated off the LHC at scales we can only dream about.

Importantly Reva also delivers an opportunity to make CloudStor inter-operable with institutional file systems, making CloudStor a single pane of glass for accessing your data and data shared with you, across multiple data stores. With strong authorisation controls this also provides access to CloudStor sharing mechanisms and group drive functions.

We will discuss the practical advantages of moving to Reva, the development work that AARNet is collaborating on with CERN and ownCloud, and the pilot activities for cross file system interoperability that are currently underway.


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