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[[Windows_Native_Client_Questions]]
<small>''(Updated: Mar 2010)''</small>
__TOC__
The Windows Native Client (WNC) project is to deliver a port of the Lustre File System client for the Windows operating system. This port is based on Lustre 2.x code. This project will not port the Lustre servers to Windows. It is a port of the Lustre client only.


= Windows Project Information =
The Lustre driver for Windows will be based on the [http://www.microsoft.com/whdc/devtools/ifskit/default.mspx Windows Installable Filesystem (IFS) Kit].


== Links ==
== Software and Hardware Requirements ==
[[Windows_Native_Client_Questions]]
== Milestones ==
- Working Linux Lustre cluster (vmware or otherwise) - Michael MacDonald to assist asap?
- Mounting on windows – requires Matt’s branch to work
- File Browsing
- File I/O
- Integrate with CFS testing
- Performance


== Methodology ==
''Windows versions:'' Windows Server 2008/2008 R2<br>
''Lustre:'' HEAD code/version 2.x<br>
''Supported Networks:'' Ethernet and IB (TCP/IP only)


OSR has a reasonable idea how to get skeleton code together for 1-3, but needs a review of lock revocation and metadata caches before finalizing 3, from someone like Oleg.  I expect some assistance from Matt suggesting skeletons etc can help tremendously.  Nikita should help architect a skeleton for the file I/O architecture.
==Currently supported features==
These basic operations have been implemented:
* Lustre client filesystem mount and dismount
* File creation/open/close/rename/getattr/setattr/deletion
* Directory enumeration
* Directory change notification
* Data reading/writing: cached i/o, direct i/o, mmap i/o
* Byte range lock/flock


== Contributors: ==
==Future plans==
* GUI tool for management of lustre mounts
* Integration to Windows network drive assignment


'''OSR'''
==Download and Support==
 
The Alpha/Beta release will only be available via the early access program.
Dan Root – project manager
 
Tony Mason – design lead, working with Mark
 
Mark Cariddi - developer
 
'''Sun'''
 
Bryon Neitzel - Project Manager
 
Matt – owns libraries, compiler issues, LNET
 
Nikita – file I/O guidance
 
Alex - metadata API
 
Oleg ? – Metadata guidance
 
Eeb – control landing from the branch
 
Braam / Eeb – architecture, abstractions
 
== Risks  ==
- all risks are fairly likely and highly disruptive
 
Loss of CFS attention – CFS project manager
Poorly defined details – CFS documentation team
Out of date libraries – Matt Wu
Compiler issues – Matt Wu
Code base continues to move – CFS development team
Getting it right vs working – Nikita / Oleg
Landing into 2.0 – Barton
 
== Implementation strategy ==
 
OSR will work on skeletons / prototypes and request review of these when ready. 
 
== Project management  ==
 
Frequent status reports with risk update.
OSR agreed to weekly status reports and bi-weekly conference calls.
 
== Budget ==
 
Peter Braam and Tony were not yet concerned about the budget situation, but the original estimates were too optimistic, in particular because CFS made no progress between October 2007 and April 2008.
 
== Meeting History ==
=== Windows Client Meeting, Monday, 2008-04-21. ===
Eric Barton
Peter Bojanic
Nikita Danilov
Alex Tomas
Matt Wu
Bryon Neitzel
A Google Document was created for questions from the development staff for Braam's meeting with OSR this week.
http://docs.google.com/a/lustre.org/Doc?id=d8jgmdp_20fpxwdgb.  Alex and Nikita to document questions by Wednesday.
 
A branch has been created for use by OSR.  b_winnt_port branch of lustre-core module (sharing HEAD lnet so far)
Comments from the Meeting:
- eeb: need a clean interface that porting will use.
- eeb: need metadata interface that doesn't expose internal stuff to another platform
- Matt to continue documentation, compile issues, and porting all client components that are common to other platforms (LOV, LDLM, OSC, MDC, LVM, PTLRPC, etc)  Eric  would like to be involved before too much design work is done.
 
- Matt has drafted a doc titled gcc_vc.pdf that describes the differences between the gcc and vc compilers, and some proposed solutions.  This was sent to Dan Root, et al,  on Jan 20.  Eric to provide feedback.
- Alex wants to learn more about Windows. understand simple use cases.
- would OSR implement the file handle stuff?  (do we need to export an MD FID lookup?)
- Get de-brief from Braam on meeting, have him give direction to Alex on md api
 
- Alex to send a list of questions to braam
- Put a question in doc about what OSR can be doing?
- Need an OSR work plan as a result of Braam meeting, so the Lustre team knows all the dependencies and dates on items we're responsible for.
- Do we need an LNET branch?  Give them a snapshot of all of the sources.  Otherwise we don't know what they're implementing to.    Nikita says current client IO can't be used for implementation, as it's not far enough along yet.
- Provide branch names: b_winnt _port, HEAD version of LNET.  OSR will need their own private branch when they start to commit code.  Need to sort out branch situation when OSR is ready to check in code.  Their code cannot live in a pubic branch.

Latest revision as of 16:44, 9 March 2010

(Updated: Mar 2010)

The Windows Native Client (WNC) project is to deliver a port of the Lustre File System client for the Windows operating system. This port is based on Lustre 2.x code. This project will not port the Lustre servers to Windows. It is a port of the Lustre client only.

The Lustre driver for Windows will be based on the Windows Installable Filesystem (IFS) Kit.

Software and Hardware Requirements

Windows versions: Windows Server 2008/2008 R2
Lustre: HEAD code/version 2.x
Supported Networks: Ethernet and IB (TCP/IP only)

Currently supported features

These basic operations have been implemented:

  • Lustre client filesystem mount and dismount
  • File creation/open/close/rename/getattr/setattr/deletion
  • Directory enumeration
  • Directory change notification
  • Data reading/writing: cached i/o, direct i/o, mmap i/o
  • Byte range lock/flock

Future plans

  • GUI tool for management of lustre mounts
  • Integration to Windows network drive assignment

Download and Support

The Alpha/Beta release will only be available via the early access program.

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