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Positioning XAM for the Cloud
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Positioning XAM for the Cloud

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Presentation given at Storage Networking World, Spring 2009 (Orlando)

Presentation given at Storage Networking World, Spring 2009 (Orlando)

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  • 1. April 6-9, 2009 | Rosen Shingle Creek Resort | Orlando, Florida
  • 2. XAM: A Next Generation April 6-9, 2009 Rosen Shingle Creek Resort Orlando, Florida API for the Cloud Mark A. Carlson SNIA Technical Council and Sun Microsystems, Inc. mac@sun.com 2 Copyright © 2009The Storage Networking Industry Association
  • 3. Agenda • Cloud use cases, requirements April 6-9, 2009 Rosen Shingle • The Storage Industry Resource Creek Resort Orlando, Florida Domain Model • Next generation Data Storage Interfaces • XAM as it applies to the Cloud • Get involved 3 Copyright © 2009The Storage Networking Industry Association
  • 4. Cloud Storage: use cases and requirements • Store my file and give me back a URL (i.e. Amazon S3) – Best Effort Quality of Service? April 6-9, 2009 Rosen Shingle • Provision a filesystem and mount it (i.e. WebDAV) Creek Resort Orlando, Florida – Quality of Service specification via provisioning interface • Give me Filesystems/LUNs for my Cloud Computing – NAS box in the cloud… • Store my backup files until I need them back – Maybe offer me a local cache as well • Archive my files in the Cloud for Preservation/Compliance – Maybe offer me eDiscovery services, “tape in the mail” retrieval • Store all my files, allowing me to set the Data Requirements, let me cache and distribute geographically – Policy driven Data Services based on Data System Metadata markings 4 Copyright © 2009The Storage Networking Industry Association
  • 5. Data Storage Interface • The model includes all these elements which may or may not be present April 6-9, 2009 – True for Cloud Storage Rosen Shingle Creek Resort Orlando, Florida interfaces as well • A next generation Data Storage Interface needs to make use of metadata – Allows the Data Requirements to be expressed on each data element 5 Copyright © 2009The Storage Networking Industry Association
  • 6. Metadata and Data Storage Interfaces Storage services may provide functions for metadata as part of the data storage interface. This is an important capability for managing April 6-9, 2009 Data Resources (as opposed Rosen Shingle Creek Resort to managing Storage Orlando, Florida Resources). The metadata may be managed by the storage service, managed by data services, or un-interpreted by either. System metadata that is managed by storage services are those properties Other system and user metadata may be of a data element that pertain to the primary preserved on the basis of individual data elements, functions of storing and but is not interpreted by the storage services retrieving the data. 6 Copyright © 2009The Storage Networking Industry Association
  • 7. Metadata for Data Services •Metadata available through the data storage interface may also be managed by data April 6-9, 2009 services Rosen Shingle Creek Resort Orlando, Florida •This data service metadata can be used by data services to provide differentiated value to individual data elements •The model or schema for data service metadata may be defined by each data service and may be standardized 7 Copyright © 2009The Storage Networking Industry Association
  • 8. Metadata and Information Services The role of metadata in information services is as a communication mechanism with the underlying storage services and data services. April 6-9, 2009 Information services are Rosen Shingle Creek Resort primarily concerned with the data Orlando, Florida service system metadata as a means to convey the data’s requirements to the underlying data services. An information service may also interpret user metadata for purposes of data classification. An information service can create its own user metadata that is un-interpreted by the underlying services for its own use. 8 Copyright © 2009The Storage Networking Industry Association
  • 9. The Resource Domain Model April 6-9, 2009 Rosen Shingle Creek Resort Orlando, Florida 9 Copyright © 2009The Storage Networking Industry Association
  • 10. XAM API: an example Data Storage Interface • XAM is the first interface to XAM User metadata is un- standardize system metadata interpretable by the system, but for retention of data stored with the other data and XAM implements the basic is available for use in queries capability to Read and Write Data (through Xstreams) April 6-9, 2009 Given this we can see that Rosen Shingle XAM has the ability to locate Creek Resort XAM is a data storage interface Orlando, Florida XSet with a query or by any that is used by both Storage supplying the XUID and Data Services (functions) XAM allows Metadata to be added to the data and keeps both in an XSet object XAM uses and produces system metadata for each XSet For example Access and Commit times (Storage System Metadata) But it also uniquely specifies Data System Metadata for Retention Data Services 10 Copyright © 2009The Storage Networking Industry Association
  • 11. XAM SDK The XAM SDK is dynamically linked by each application wishing to connect to and use XSystems. April 6-9, 2009 Application Rosen Shingle Creek Resort XAM Library Fields XAM Orlando, Florida Toolkit Connect() XAM API XAM Library XAM Library VIM API Reference Vendor Vendor .. VIM A VIM X VIM VIM = Vendor Interface Module . The XAM SDK includes several components: XSystem • XAM Library, which implements the XAM API functions • Reference VIM, which implements the reference behavior of an XSystem • a framework which allows plug-able Vendor VIMs • optional XAM Toolkit Libraries for convenience functions 11 Copyright © 2009The Storage Networking Industry Association
  • 12. XAM Application software stack C/C++ Application Java Application April 6-9, 2009 Rosen Shingle Creek Resort XAM Java API (JNI) Orlando, Florida XAM C API XAM Java API XAM Library logic (C++) XAM Library logic (Java) ‘outgoing’ VIM C API ‘outgoing’ VIM Java API VIM Java API (JNI) VIM C API VIM Java API VIM VIM C Java 12 Copyright © 2009The Storage Networking Industry Association
  • 13. HTTP VIM • C language VIM plugs into C XAM Library April 6-9, 2009 • Java language VIM sits atop Reference VIM Rosen Shingle Creek Resort • Communication is XML over HTTP Orlando, Florida • Not RESTful, not Web Services • If there becomes a Cloud interface with XAM-like functions (i.e. metadata and query support), a VIM could be created to use that • Alternatively, SNIA could standardize such a wire level interface for this usage •discussion in Cloud TWG perhaps 13 Copyright © 2009The Storage Networking Industry Association
  • 14. Cloud API to the Resource Domain Model Nothing further is needed to be standardized in order to use XAM for a April 6-9, 2009 Rosen Shingle Cloud Storage Creek Resort Orlando, Florida API today. Applications are written to a local (Java, C, etc.) API and the Cloud vendor’s VIM handles the rest. 14 Copyright © 2009The Storage Networking Industry Association
  • 15. SNIA XAM • XAM version 1.0 is a standard April 6-9, 2009 Rosen Shingle • XAM Initiative is coordinating with Creek Resort Orlando, Florida SNIA’s Cloud efforts • XAM SDK TWG finishing up software development • TopCoder Challenge – See Flyer for details Get Involved! http://snia.org/XAM 15 Copyright © 2009The Storage Networking Industry Association
  • 16. April 6-9, 2009 Rosen Shingle Thank You! Creek Resort Orlando, Florida 16 Copyright © 2009The Storage Networking Industry Association