On Feb 11, 2008 7:30 PM, Martie Land <[EMAIL PROTECTED]> wrote:
>
>
> Data Migration Manager
>
> Purpose:
>
> Purpose of this effort is to provide an open source tool to
> facilitate the movement of file systems from one platform to
> another over the NFS and CIFS protocols. An important part of
> this goal is maintaining read/write access to file system
> content over the duration of the migration.
>
> Sponsoring Community Groups:
>
> Storage
>
> Key Partnerships:
>
> UFS, ZFS, and SAM/QFS discussion groups
>
> Initial Project Development Team:
>
> Mark Cruciani - Project team lead
> Steven Larson - DMM Infrastructure Lead Design/Developer
> David Villineau - DMM Kernel Lead Design/Developer
> Matt Bailey - DMM Kernel Developer
> Erick Liska - DB and Infrastructure Developer
> Roy Lee - GUI Design and Developer
> Murali Balusu - Mgr, Functional Verification Testing
> Ray Lanza/ Spencer Shepler - DE, Architectural Oversight
> Reg Gillmor - DMM Program Manager
> Martie Land - Mgr, DMM project
>
>
> Project Description:
>
> Today, customers choosing to adopt newer storage platforms
> based on file systems different from those used in their
> existing storage solutions have no easy method of transferring
> data from the old to the new systems while retaining access to
> these data by applications. A highly reliable, easy-to-use
> migration solution which transmits all aspects of user data
> will greatly simplify this task and reduce the costs associated
> with transition.
>
> This project will deliver a two pronged approach to data
> migration which will ensure data is moved as quickly and
> efficiently as possible while maintaining client access to
> data throughout the migration process.
>
> In active-path migration, client file system requests for
> files which have not yet been migrated will be held temporarily
> while the Monarch system migrates the data from the source to
> the target file system. After the data requested by the file
> system operation is retrieved, the client is released and
> allowed access to the data.
>
> In passive migration, no client file system activity is required.
> Instead the Monarch system will proactively "walk" the source
> file system, migrating data using heuristics or policy to ensure
> that the data of highest importance is moved first to reduce
> the probability of a client waiting at a later time.
>
> Web-based GUI and CLI interfaces will be offered.
>
> This project will be associated with (and endorsed by) the Storage
> Community and cross-posted to the UFS-discuss, SAM/QFS discuss, and
> ZFS-discuss .
>
>
> Project Needs:
>
> OpenSolaris Project Page
I find the idea of migration tool very interesting and give it +1.
I'd like to ask a couple of questions:
1. You've mentioned "Monarch system" a couple of times.
What is it ? Is it a codename for that DMM ?
2. In your proposal you requested project page. What about the
source code ? Is it your intention to have a community-visible
project source gate ? I am asking because there are many
projects under the OpenSolaris umbrella, that only have
[minimal] project page, leaving community over board.
--
Regards,
Cyril
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