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Google Storage

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Google Storage

Google Cloud Storage
Web address //storage.com.googlecloud
Type of site File hosting service
Registration Required
Available in English
Owner Google
Launched May 19, 2010 (2010-05-19)
Current status Active

Google Cloud Storage is a RESTful online file storage web service for storing and accessing your data on Google's infrastructure. The service combines the performance and scalability of Google's cloud with advanced security and sharing capabilities. It is an Infrastructure as a Service (IaaS), comparable to Amazon S3 online storage service.

Feasibility

User activation is resourced through the API Developer Console. Google Account holders must first access the service by logging in and then agreeing to the Terms of Service, followed by enabling a billing structure. As of May 21, 2011, the console is part of Google Labs, and is free up to a usage quota.

Design

Google Storage (GS) stores objects (originally limited to 100 GiB, currently up to 5 TiB) that are organized into buckets (as S3 does) identified within each bucket by a unique, user-assigned key. All requests are authorized using an access control list associated with each bucket and object. Bucket names and keys are chosen so that objects are addressable using HTTP URLs:

  • http://storage.googleapis.com/bucket/object
  • http://bucket.storage.googleapis.com/object
  • https://storage.cloud.google.com/bucket/object

Features

  • Interoperability - Google Storage is interoperable with other cloud storage tools and libraries that work with services such as Amazon S3 and Eucalyptus Systems.
  • Consistency - Upload operations to Google Storage are atomic, providing strong read-after-write consistency for all upload operations.
  • Access Control - Google Storage uses access control lists (ACLs) to manage object and bucket access. An ACL consists of one or more entries, each granting a specific permission to a scope. Permissions define what someone can do with an object or bucket (for example, READ or WRITE). Scopes define who the permission applies to. For example, a specific user or a group of users (such as Google account email addresses, Google Apps domain, public access, etc.)
  • Resumable Uploads - Google Storage provides a resumable data transfer feature that allows to upload operations to resume after a communication failure has interrupted the flow of data.

References

  • "Google Cloud Storage - Getting Started". 2010. 
  • "Google Cloud Storage - Pricing". 2012. 
  • "Google Cloud Storage - XML Developer Guide". 2010. 
  • "Google Cloud Storage - JSON Developer Guide". 2012. 
  • "GSUtil Tool". 2010. 

External links

  • Official website
  • Google Cloud Storage Discussion Group
  • Intro to new Google cloud technologies: Google Storage, Prediction API, BigQuery slideshare presentation by Chris Schalk (Developer Advocate at Google)
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