• Uncategorized Comments Off on Shangai Nights


    The SNIA US delegation has Thai food and good times with some prospective Chinese technical work group participants.:
    Get the Flash Player to see this video.


    SNIA China technical activities are looking up….


    On friday we took a trip to the Yu yuan gardens:


  • Uncategorized Comments Off on Moving web scale applications to NoSQL

    I attended a Silicon Valley Cloud Meetup this week where Siddharth Anand (Sid) gave a great talk on how Netflix has moved to the cloud from applications hosted in their own datacenter. In particular he focused on moving applications from using a traditional RDMS (Oracle in this case) to first SimpleDB (an Amazon offering) and then Cassandra (an open source Key/Value store). SriSatish Ambati (DataStax, @srisatish) hsd given a great overview of Cassandra’s history and capabilities (slides) as a warm up talk.

    Sid focused down on the actual issues their engineering team ran into when moving to the could, including:

    • Data Model changes required
    • Living without SQL support
    • No joins
    • No transactions
    • No triggers
    • etc.

    The gist of it amounts to a lot of work in your client code to handle these differences. Netflix accomplishes this by a common layer in their architecture that deals with the NoSQL and hides some of these idiosyncrasies from the application layers above. This is a lot of work (as evidenced by their recent hiring spree – they do these talks to recruit), but is necessary if they are to outsource their resource management and planning to the cloud so that they can scale efficiently.

    Sid will give a followup part 2 talk that deals in more depth with the Cassandra issues that they are still working on solving. His slides and a whitepaper are available if you want more details. Updated: There is now a video of the talk.


  • Uncategorized Comments Off on DMTF shows it’s Cloud hand

    The DMTF has released a white paper titled: Interoperable Clouds. From the abstract: “This white paper describes a snapshot of the work being done in the DMTF Open Cloud Standards Incubator, including use cases and reference architecture as they relate to the interfaces between a cloud service provider and a cloud service consumer. The goal of the Incubator is to define a set of architectural semantics that unify the interoperable management of enterprise and cloud computing. This paper summarizes the core use cases, reference architecture, and service lifecycle. These building blocks will be used to specify the cloud provider interfaces, data artifacts, and profiles to achieve interoperable management.

    The paper lays out several great models for cloud services, and I encourage everyone to read the whole whitepaper. Here is a picture from chapter 5 on the Cloud Service Reference Architecture:


    The group has all the right players participating, including: AMD, CA, Cisco, Citrix, EMC, Fujitsu, HP, Hitachi, IBM, Intel, Microsoft, Novell, Rackspace, RedHat, Savvis, SunGard, Sun Microsystems, and VMware. The white paper is just the first milestone in the group’s work. Chapter 6 lays out the next steps for the group, including future Alliances work.

  • Uncategorized Comments Off on LISA BOF – OpenSolaris, Storage and the Cloud

    I am giving LISA BOF today at USENIX LISA here in Baltimore on OpenSolaris availability in the Cloud (EC2 instances mostly) as well as an update on the Cloud Storage standards efforts Sun is leading in the SNIA.

    You can download my slides: OpenSolarisCloud.pdf if you like or view them in SlideShare.

    Update: Deirdre video taped the presentation, so even if you were not able to attend you can watch the video:

    Get the Flash Player to see this video.

  • Uncategorized Comments Off on Cloud Storage Standard available

    The Cloud Data Management Interface (CDMI) defines the functional interface that applications will use to create, retrieve, update and delete data elements from the Cloud.
    CDMIcover.jpgAs part of this interface the client will be able to discover the capabilities of the cloud storage offering and use this interface to manage containers and the data that is placed in them. In addition, metadata can be set on containers and their contained data elements through this interface.

    This interface is also used by administrative and management applications to manage containers, accounts, security access and monitoring/billing information, even for storage that is accessible by other protocols. The capabilities of the underlying storage and data services are exposed so that clients can understand the offering.

    Cloud Data Management Interface (CDMI), Version 0.8 is avalable for review and feedback from:


    Please submit feedback and suggested changes to the document via the SNIA feedback portal:


    The specification will be the focus of my tutorial session titled: “Introducing the New Cloud Data Management Interface” at the SDC conference today.

  • Uncategorized Comments Off on Cloud Storage for Cloud Computing

    Gary Mazzaferro and I have created a whitepaper that discusses the coordination going on between two early cloud standards. OCCiLogo.jpg The first is the Open Cloud Computing Interface, or OCCI for short. OCCI is a standard, RESTful interface to control a cloud computing infrastructure in an interoperable manner. It is being developed by the Open Grid Forum (OGF) and early drafts are available on the OCCI Web site.

    The second standard is called the Cloud Data Management Interface (CDMI). CDMI in a similar manner allows for the interoperable access to and control of a cloud SNIAandCloud.jpgstorage infrastructure. CDMI is being developed by the Storage Networking Industry Association. CDMI is also RESTful in design and allows for both a data path and a control path to cloud storage. But CDMI can also be used as the control path for cloud computing storage needs if you couple it with a cloud computing standard such as OCCI.

    To learn more about SNIA’s Cloud Data Management
    Interface (CDMI) standard, and how it works with Cloud Computing
    standards such as the OGF Open Cloud Computing Interface (OCCI) please
    download the whitepaper from one of the following locations:

    SNIA Site
    OGF Site

  • Uncategorized Comments Off on Hello world!

    Who am I?


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