Andy, Thijs, et al., It's very nice to see a paper that directly addresses the integration of OCCI, OVF, and CDMI. Some of these questions might be for my own education, as much as anything else. The Scenario example is a simple MapReduce service consisting of a Portal, a Hadoop Master and a Hadoop Slave -- along with two storage volumes. These are connected in a simple network topology. While an OVF package can represent a multi-VM configuration, this is not emphasized in the Service Migration and Redeployment discussion. In fact, the acronym OVA (Open Virtualization Appliance or Application) is used but not defined. Presumably OVA is intended to denote entire applications that can consist of many resources. OCCI's Resource Templates do not seem intended to capture entire "virtual application configurations" -- rather they are intended to capture individual resource configurations. (Is that correct?) Step 4 of Service Migration states that the service provider instantiates the resources and attaches the related data. Nothing is said about network topology support or necessary/expected bandwidth. Compute resources can be qualified by clock speed or RAM, storage resources can be qualified by size, but network resources have no such qualifications. What I'm getting at is the ability to migrate/instantiate large, complex applications or even "virtual data centers" out of a physical data center/cloud. Aside from issues of scale, can this be done at all? Presumably this would be facilitated by managing things like virtual switches. What would it take to do this (in OVF)? What would this have to look like to be compatible with the VLAN management work being done using OpenFlow and IF-MAP in the OCC Virtual Network Testbed? (This will be hard to answer since I don't think there's anything written up yet.) What's the uptake of OCCI/OVF/CDMI in OpenStack? --Craig Minor editorial comments: 1) CMWG needs a citation. 2) The first reference to OVF occurs in the second paragraph of the Introduction but the citation [4] isn't given until two paragraphs later. 3) OVA is used by not defined. On 6/23/11 7:50 AM, Sill, Alan wrote:
FYI - As discussed on today's board meeting call. Please review this document, feel free to circulate it within OGF groups, and any feedback should be directed to Thijs and the occi-wg.
Alan
Begin forwarded message:
From: "Thijs Metsch"<tmetsch@platform.com<mailto:tmetsch@platform.com>> To: "occi-wg@ogf.org<mailto:occi-wg@ogf.org>"<occi-wg@ogf.org<mailto:occi-wg@ogf.org>> Subject: [occi-wg] Cloud Standards Integration - Request for comments
Dear all,
The DMTF APTS meeting in Boulder, CO last month has been a great a success [1]. And as one of the outcomes some of the OCCI-wg members wrote a document which describe how today's Cloud standards (CDMI, OVF and OCCI) can be used together to create a open Cloud. This document is now finally ready (Sorry for the delay) and by this email I would ask for your comments and thoughts on this documents.
Many thanks,
-Thijs
[1]<http://occi-wg.org/2011/05/25/occi-at-dmtf-apts/> http://occi-wg.org/2011/05/25/occi-at-dmtf-apts/
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