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Ethernet Storage

Why the FCoE vs iSCSI Debate Continues

Jeff Archer of the SNIA ESF Forum has written an article weighing up the strengths and weaknesses of both FCoE and iSCSI to help you decide which network protocol is right for you.

Read the article in our latest articles page.


View Part 1 of the 4-Part Webcast Series on NFS

Recorded:  6 November 2012 - 16:00 GMT/17:00 CET

Where:  http://www.brighttalk.com/webcast/663/59507

This talk will appeal to Virtual Data Center Managers, Database Server administrators, and those that are seeking a fundamental understanding of NFSv4.1 with pNFS. It will cover the four key reasons to start working with NFSv4.1 today; explain the storage layouts for parallel NFS; NFSv4.1 Files, Blocks and T10 OSD Objects; and improvements in security. We’ll conclude the session with use cases for grid, database access, enterprise and desktop virtualization.

Missed the webcast?  Playback the recording here:  http://www.brighttalk.com/webcast/663/59507

 


An Overview of NFSv4
NFSv4.0, NFSv4.1, pNFS, and proposed NFSv4.2 features

From the SNIA Ethernet Storage Forum

  NFSv4 Whitepaper May2012

NFSv4 has been a standard file sharing protocol since 2003, but has not been widely adopted. Yet, NFSv4 improves on NFSv3 in many important ways. In this white paper, we explain the how NFSv4 is better suited to a wide range of datacenter and HPC use than its predecessor NFSv3, as well as providing resources for migrating from v3 to v4. And, most importantly, we make the argument that users should, at the very least, be evaluating and deploying NFSv4.1 for use in new projects; and ideally, should be using it wholesale in their existing environments.

 

Video Tutorial on Ethernet Storage

Fibre Channel over Ethernet (FCoE)

The Fibre Channel (T11.3) standards committee developed a Standard called Fibre Channel over Ethernet (FCoE). The FCoE standard specifies the encapsulation of Fibre Channel frames into Ethernet Frames and the amalgamation of these technologies into a network fabric that can support Fibre Channel protocols and other protocols such as TCP/IP, UDP/IP etc. A “Direct End-to-End” FCoE variant has been accepted for the next version of the Standard The tutorial will show the Fundamentals of these FCoE concepts and describe how they might be exploited in a Data Center environment.

 


 

Latest Ethernet Storage Publications

  • 2013 in Review and the Outlook for 2014: A SNIA Ethernet Storage Forum Perspective

    By Jason Blosil, ESF member (NetApp)

    First published in DCS Europe - March 2014

    TECHNOLOGY continues to advance rapidly. Making sense of it all can be a challenge. At the SNIA Ethernet Storage Forum, we focus on storage technologies and solutions enabled by and associated with Ethernet Networks. Last year, we modified the charters of our two Special Interest Groups (SIG) to address topics about file protocols and storage over Ethernet. The File Protocols SIG includes the prior focus on Network File System (NFS) related topics and adds discussions around Server Message Block (SMB / CIFS). We had our first webcast last November on the topic of SMB 3.0 and it was our best attended webcast ever.

  • Why the FCoE vs iSCSI Debate Continues

    By Jeff Asher, ESF member (NetApp)

    First published in DCS Europe - March 2014

    A LOOK BACK AT FCoE and iSCSI HISTORY -- There are two entrenched standards for block storage protocols over Ethernet networks. FCoE was ratified in 2009, while iSCSI was ratified in 2004. Of course, various vendors and early adopters supported these protocols before ratification, so the history of these protocols is a couple of years longer than it looks, respectively. While iSCSI simply encapsulates the SCSI protocol in IP, FCoE operates lower in the network stack and to do so required many enhancements to Ethernet. While iSCSI runs on any IP network (mostly Ethernet these days), FCoE requires Data Center Bridging and Converged Network Adapters all running at 10 Gbps or faster.

  • Considerations for congestion notification in FCoE networks

    Written by Gilles Chekroun, SNIA Europe Technology Chair (Cisco Systems)

    Since the earliest days of data networking, congestion control and management have been a major effort to ensure the best throughput. Years ago we had technologies such as Frame Relay Forward Explicit Congestion Notification (FECN) and Backward Explicit Congestion Notification (BECN), and others to achieve simple and effective methods of congestion notification and avoidance.

  • Beyond Potatoes; Migrating from NFSv3

    Written by Alex McDonald, SNIA Europe UK committee member (NetApp)

    NFSv4 and the minor versions that follow it are designed to address many of the issues that NFSv3 poses. While adequate for many purposes and a familiar and well understood protocol, NFSv3 has become increasingly difficult to justify.

 

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