Akubra Release Plan Summary

Akubra

The Akubra Project is a new effort developed jointly by the Fedora and Topaz project teams as the first area of joint architecture work. The goal of Akubra is to provide a pluggable storage component that supports transactions on common file systems plus the ability to support multiple customized storage options at the same time. Akubra was a result of the architecture analysis by the Fedora and Topaz developers that concluded that the best opportunity for moving forward on joint architecture was to focus on building open source components to facilitate better integration of the low-level storage of files/bitstreams/blobs, and pluggability of heterogeneous underlying storage systems. We plan to integrate the new Akubra software with both the Topaz OTM and the Fedora Repository service. The primary intent is to create better abstraction and separation of concerns between file/bitstream/blob storage, and the services that Topaz and Fedora provides over them. Once this is done, there will be more flexibility in terms of how Topaz and Fedora can evolve architecturally.

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FR

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2009

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Pluggable Storage Framework Design

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– Fedora v3.0 for comment

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Simple Transactional File System Plug-in

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-- Fedora v3.1

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-- Supports registry in ST5800
-- Able to delegate tasks to Storage Beans
-- Support for call back acknowledgements

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Advanced Transactional File System Plug-in

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-- Supports use of native transactional file systems

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Legend

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FR – Fedora Repository Project

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A – Akubra Project

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T – Topaz Project

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M – Mulgara Project

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FM – Fedora Middleware Project

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O – Other independent open source projects

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2009

Pluggable Storage Framework Design

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Fedora v3.0 for comment

Simple Transactional File System Plug-in

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Multiplexed Storage Framework Design

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Multiplexed Storage Framework

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Sun ST5800 Plug-in

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Joint work with Sun
Fedora v3.1

IA Petabox Plug-in

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Joint work with Internet Archive

Hierarchical Plug-in

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Needs one or more partners with HFS products

aDORe Plug-in

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Joint work with LANL

Advanced Sun ST5800 Plug-in

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Joint work with Sun
Supports registry in ST5800
Able to delegate tasks to Storage Beans
Support for call back acknowledgements

Advanced Transactional File System Plug-in

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Possible joint work with Sun
Supports use of native transactional file systems