DECADE Group A. Rahman Internet Draft JC. Zuniga Intended status: Informational InterDigital Communications, LLC Expires: December 29, 2010 June 29, 2010 An Additional Survey of In-Network Storage Systems draft-rahman-decade-survey-00 Abstract This document describes some additional network based storage systems to complement the surveys already performed in the DECADE working group. Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html This Internet-Draft will expire on December 29, 2010. Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents Rahman, et al. Expires December 29, 2010 [Page 1] Internet-Draft An Additional DECADE Survey June 2010 (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the BSD License. Table of Contents 1. Introduction...................................................2 2. Conventions and Terminology....................................3 3. Photo Sharing..................................................3 3.1. Data Access Interface.....................................3 3.2. Data Management Operations................................4 3.3. Data Search Capability....................................4 3.4. Access Control Authorization..............................4 3.5. Resource Control Interface................................4 3.6. Discovery Mechanism.......................................4 3.7. Storage Mode..............................................5 4. Web Mail.......................................................5 4.1. Data Access Interface.....................................5 4.2. Data Management Operations................................5 4.3. Data Search Capability....................................5 4.4. Access Control Authorization..............................5 4.5. Resource Control Interface................................6 4.6. Discovery Mechanism.......................................6 4.7. Storage Mode..............................................6 5. Conclusions....................................................6 6. Security Considerations........................................6 7. IANA Considerations............................................6 8. References.....................................................7 8.1. Normative References......................................7 8.2. Informative References....................................7 9. Acknowledgments................................................7 1. Introduction The DECADE (DECoupled Application Data Enroute) working group is chartered to design and standardize an architecture and protocol that will enable Peer-to-Peer (P2P) applications to utilize network Rahman, et al. Expires December 29, 2010 [Page 2] Internet-Draft An Additional DECADE Survey June 2010 based storage systems as described in [I-D.draft-song-decade- problem-statement]. In this draft, we propose considering two key systems in addition to the DECADE survey of existing in-network storage [I-D.draft-song- decade-survey]. These systems include both P2P and other modes and help provide further useful insights for DECADE. This document responds to the call made at the IETF #77 meeting by the WG chair, requesting the group to contribute to enhancing the existing survey. 2. Conventions and Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 3. Photo Sharing There are a growing number of popular on line Photo Sharing (storing) systems. For example, the Kodak Gallery system [KodakGallery01] serves over 60 million users and stores billions of images [KodakGallery02]. Other well known examples of Photo Sharing systems include Flickr [Flickr] and ImageShack [ImageShack]. Also there a number of popular blogging services, such as Tumblr [Tumblr], which specialize in also sharing large number of photos and other multimedia content (e.g. video, text, audio, etc.) as part of their service. All these in-network storage systems utilize both free and paid subscription models. Most Photo Sharing systems use traditional client-server architecture. However, a minority of systems also offer a P2P mode of operation. 3.1. Data Access Interface Users can read (view) and write (store) objects (photos). Rahman, et al. Expires December 29, 2010 [Page 3] Internet-Draft An Additional DECADE Survey June 2010 3.2. Data Management Operations Users can delete previously stored objects (photos). 3.3. Data Search Capability Users can tag objects (photos) and/or organize them using sophisticated web photo album generators. Users can then search for objects (photos) matching desired criteria. 3.4. Access Control Authorization We consider three types of Access Control Authorization: Public- unrestricted, Public-restricted, and Private. Public-unrestricted refers to content that is widely available to anyone (e.g. Wikipedia.com). Public-restricted refers to content that is available to a public which is restricted by certain criteria (e.g. country or region), but does not require any confidential credentials from the client. Finally, Private refers to content that is only made available to clients presenting the required credentials (e.g. password or key). In the case of Photo Sharing, access to stored objects (photos) typically can be Private, or Public-unrestricted. 3.5. Resource Control Interface Not provided. 3.6. Discovery Mechanism Usually by logging on to a central web page for the service and entering the appropriate information to access the desired information. Rahman, et al. Expires December 29, 2010 [Page 4] Internet-Draft An Additional DECADE Survey June 2010 3.7. Storage Mode Objects (photos) are usually stored as files. They can then be organized into meta-structures (e.g. albums, galleries, etc.) using sophisticated web photo album generators. 4. Web Mail Web Mail systems are email services primarily accessed via a web browser as opposed to a desktop email client. Well known examples of Web Mail systems are Google Gmail, Yahoo Mail, and Microsoft Hotmail. A key aspect of these web based mail systems is that they offer a relatively large amount of in-network storage to store emails and attachments. The amount of network storage typically starts from 1GB free of charge, and goes up to larger amounts which may be charged. Some Web Mail systems, such as Yahoo, now claim to offer "unlimited amount of (network) storage" [WebMail]. All Web Mail systems use traditional client-server architecture. 4.1. Data Access Interface Users can read and write objects (email). 4.2. Data Management Operations Users can delete previously stored objects (email). 4.3. Data Search Capability Users can tag objects (email) and/or organize them into folders. Users can then search for objects (email) matching desired criteria (including searching text within the body of the email). 4.4. Access Control Authorization Access is Private. Rahman, et al. Expires December 29, 2010 [Page 5] Internet-Draft An Additional DECADE Survey June 2010 4.5. Resource Control Interface Not provided. 4.6. Discovery Mechanism Not provided. 4.7. Storage Mode Objects (email) are usually stored as files. They can then be organized into directories. 5. Conclusions This draft describes two additional key in-network storage systems, Photo Sharing and Web Mail, to be considered for the DECADE survey of existing storage technologies. These two systems are very popular and store a large amount of cumulative data in the network and thus are instructive to consider for DECADE. 6. Security Considerations This draft is a survey of existing in-network storage systems, and does not introduce any security considerations beyond those of the surveyed systems. 7. IANA Considerations This document makes no request of IANA. Rahman, et al. Expires December 29, 2010 [Page 6] Internet-Draft An Additional DECADE Survey June 2010 8. References 8.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. 8.2. Informative References [I-D.draft-song-decade-problem-statement] Song, H., Zong, N., Yang, Y., Alimi, R., "DECoupled Application Data Enroute (DECADE) Problem Statement", draft-song-decade-problem- statement-01 (Work in progress), March 8, 2010. [I-D.draft-song-decade-survey] Alimi, R., Lu, Z., Song, H., Yang, Y., "A Survey of In-network Storage Systems", draft-song- decade-survey-03 (Work in progress), March 8, 2010. [KodakGallery01] Kodak, "Kodak Gallery Home Page", http://www.kodakgallery.com/gallery/welcome.jsp [KodakGallery02] Wikipedia, "Kodak Gallery", http://en.wikipedia.org/wiki/Kodak_Gallery [Flickr] Flickr, "Flickr Home Page", http://www.flickr.com/ [Tumblr] Tumblr, "Tumblr Home Page", http://www.tumblr.com/ [WebMail] Wikipedia, "Comparison of webmail providers", http://en.wikipedia.org/wiki/Comparison_of_webmail_provide rs 9. Acknowledgments Thanks to Serhad Doken and Milan Patel for their useful comments and discussions. Authors' Addresses Akbar Rahman InterDigital Communications, LLC Email: Akbar.Rahman@InterDigital.com Rahman, et al. Expires December 29, 2010 [Page 7] Internet-Draft An Additional DECADE Survey June 2010 Juan Carlos Zuniga InterDigital Communications, LLC Email: JuanCarlos.Zuniga@InterDigital.com Rahman, et al. Expires December 29, 2010 [Page 8]