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GRNET GSS: Empowering Greek Research with Free Cloud Storage Solutions

The Greek Research and Education Network (GRNET) introduces the GSS (GRNET Simple Storage), a free cloud storage solution designed for the Greek research and academic community. Each user is allocated 5 GB of storage for file upload, sharing, and indexing. GSS ensures robust authentication via Shibboleth and provides both thin and thick GUI access alongside API options for enhanced functionality. The storage architecture employs SATA disks on a SAN, designed for scalability and flexible integrations with third-party applications. Future enhancements will include support for virtual machines and expanded infrastructure.

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GRNET GSS: Empowering Greek Research with Free Cloud Storage Solutions

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  1. GRNETGreek Research & Education NetworkGRNET Simple Storage – GSSIoannisLiabotis, PanosLouridas http://www.grnet.gr Amsterdam, June 2007

  2. Outline • An introduction to GSS • Authorisation & Authentication • GSS Functionality • GUI Access • API Access • Storage Architecture • Future steps

  3. What is GSS? • GSS will provide free storage for the Greek research & academic community; initially 5 Gbytes for each person • Users will be able to upload, share, and index their files • Thin & Thick GUI access will be provided • Direct API access will be provided, enabling third parties to build functionality on top • Inspired by Amazon S2, but going beyond…

  4. Authentication & Authorisation (AA) • GSS will use Shibboleth for AA • GRNET has prepared a Shibboleth infrastructure for all institutions in Greece • At the current stage, three universities have Shibbolethised their AA process: NTUA, AUTH, UoPatras (total number of users > 50,000) • GSS will not offer other AA means (e.g., direct LDAP), but will be a carrot for other institutes to Shibbolethise their processes. • Initially, all users will be equals

  5. User Functionality • GSS will offer users a file system abstraction, complete with file/folder hierarchical structures • All usual file system operations will be offered • Users will also be able to share their files with selected other users, or defined user groups • Users will be able to delete files permanently, or use a trash can • GSS will enable users to version their files automatically • Full text search will be provided

  6. GUI Access • Thin web client using AJAX • Thick client using Java • WebDAV access to enable integration with window managers • All user interfaces will offer about the same set of functionality

  7. GUI Preview

  8. API Access • GSS will offer two APIs: REST and SOAP • Both APIs will offer the same set of functionality • Both APIs will be published • GSS will encourage third parties to write applications on top of the provided APIs

  9. Architecture • SATA disks on a SAN – around 140 TBytes • GPFS for data transfer • All GSS functionality provided on the application layer via application server farms • Application layer implemented in Java

  10. Shibboleth (GRNET) Logical Topology

  11. Storage Architecture – Connection with GRNET3

  12. Storage Architecture – SAN

  13. Future Steps • Rollout complete application – currently at the prototype level • Allow extra functionality on top of the initial one: • offering the capability to upload virtual machines so as to move from hosting storage to hosting computation elements • Increase infrastructure depending on use • Open to suggestions 

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