November 21, 2006 L-Store Planning Meeting (VU)

Attending

• Hagewood (Nevoa)
• Brown, Dawson, de Ledesma, Sheldon, Tackett (VU)

Meeting Goal

Develop an initial strategy for development and releases of L-Store software. There was also some discussion of planned hardware deployment for the near term.

L-Store Releases and Features

• L-Store Release 0.8 --- December 4 REDDnet@I2 meeting
  • API documentation will be provided
  • L-Store Commands Implemented:
    • mkdir
    • ls
    • write
    • read
    • help?
  • Demonstration similar to SC06 will be made at REDDnet@I2 meeting.
  • Clients will be made available for installation to attendees at REDDnet@I2
    • for user testing and application development
    • files written to depots should be considered scratch
  • Server and Depot software will not be made available at this point.
  • Bugs: a dozen or so bugs were discovered at SC06. As many of these as can be fixed will be, the rest will be fixed by "0.9" release.
  • ACCRE will work with Med Center Staff (Leibler/Proteomics) to begin the process of migrating them over to using L-Store instead of ADIC
  • StorCor/WebDav interface (Hunter)
    • This interface will work with existing depots
    • Software will be demo-ed at REDDnet@I2
    • Full integration with L-Store will likely not be complete at this stage

• L-Store Release 0.9 --- End of January 2007
  • Physical delete command will be implemented
  • Remaining SC06 bugs will be fixed, plus any new ones discovered
  • The meta-data server will be set up on a mirrored-raid device for fault tolerance
  • Full L-Store/StorCor interoperability will be implemented
  • Server/Depot software will be made available, but only to users willing to work closely with ACCRE staff supervision.
  • Full scale testing of ADIC replacement for Proteomics will begin

• L-Store Release 1.0 --- May/June 2007
  • User Manual and Server Manual will be made available
  • Actual release date will be re-evaluated in January of 2007
  • Fault tolerance
    • recover from lost metadata (I am not sure what mechanism will be?)
    • If a depot dies, file metadata will be automatically reconstituted for those files where possible and unrecoverable files will be deleted from the system.
  • Switch Proteomics over to L-Store, replace ADIC system.
  • Real Server and Depot installer
  • Authentication and Security features enabled
    • need to spell out more specifically what
  • Load balancing on the meta-data servers will be implemented
  • Monitoring system: an initial version from Hunters group will be integrated

Near-Term Hardware Deployment

• Validation, Verification, and Performance Testing Depot
  • We will deploy 20 of the Capricorn Depots in a single system that can be used for validation, verification, and performance testing.
  • This system will be for developers use only, and it can be taken down at any time. Software can be updated at any time.
  • Nightly, the L-Store development release code will be built, installed, and tested with Clyde. This may take a few months to get going smoothly.
• User System
  • The remainder of the systems (20) will be deployed as a user facility.