1. The need for a Multi-Cloud Storage API September 2009

2. There are many Storage Clouds

3. And many Social Storage Clouds

4. All are silo’d in their API access
Mosso
Box.net

5. Having support for Multiple Clouds is an enabler for:-
Importing and Exporting Data from Different Clouds
An enabled for ‘choice’ ability to easily move clouds based on things such as price, SLA etc – stop vendor lock-in
Syncing Clouds Automatically
Having Cloud Fail-over – Primary & backup Clouds for HA of data
Having a Single View

6. What Choices are there ?

7. Zcloud API
Sponsored by Zmanda, available at
The zcloud library provides a generic C API for cloud operations
Extendable via plug-ins

8. JClouds
Is available from Google Code -
Java API to help you use cloud infrastructure (not just for storage)
Currently Amazon S3 & Google App Engine is supported with more coming via plug-in architecture

9. CloudLoop
CloudLoop is a universal, open-source Java API and command-line tool for cloud storage (
It lets you store, manage, and sync your data
Currently supports Amazon S3, Eucalyptus, Nirvanix, RackSpace Cloud Files, Sun Cloud

10. SimpleCloud Is available at http://www.simplecloud.org/
Promoted by Zend, the API’s aim is to bring cloud technologies to PHP
Encompasses file storage, doc storage and simple queues
See Amazon S3 example at

11. SMEStorage Multi-Cloud API
Is available from Google Code -
API provides a unified REST API for Clouds (S3, CloudFiles, Box.net, MobileMe, Gmail, , FTP, WebDav, Box.net, Google Docs, Evernote)
Can be used as a Service Provider Interface (SPI) to Cloud Storage
Has value added services such as file system features, backup, import/ export, Cloud Sync, and much more

12. Thank you