Archive | March 23, 2003

Wine Update, Part III: Wine Locks Okay, Samba doesn’t

Extensive testing by Paul McNett seems to indicate that:

  • VFP running under Wine locks tables and records properly,
  • Multiple instances of VFP or other applications under the same instance of Wine respect each other’s locks,
  • VFP clients on Windows can properly lock records and files on a Samba share or a native Windows share,
  • VFP clients under Wine do respect locking when sharing files via NFS,
  • VFP clients running under Wine will not see locks on SMB (Samba or Windows) shares because the outgoing SMBClient does not understand locks.

So, all is not lost, nor is it won, just yet. Wine is doing it’s thing properly. Samba needs to learn the Windows Way of locking. So, if you are looking at transitioning existing Windows systems to Linux:

  1. Consider moving to client-server, which eliminates all the locking issues, and gives you increased scalability, reliability and other – ilities, OR:
  2. Put the DBF files on a Samba share, and access them via SMB (the native networking) from Windows clients, and via NFS from the Linux clients.

With the rich assortment of data servers available for Linux, I’m inclined to strategy #1 for new systems, but strategy #2 for existing DBF-based systems, to simplify the transition. Once the existing systems were working without a hitch under plan #2, I’d propose plan #1 for the next major upgrade of the system.

Microsoft Operating System Roadmap – Are We There Yet?

Ars Technica features a discussion that Microsoft server release schedule uncertain (from Ars Technica). I attended a Windows User Group meeting last month where Steve Carbone, a local Microsoft rep, explained that Windows server OSes needed to change on a longer cycle to accomodate admins in large shops with muilt-year rollout plans, while client OSes could change more rapidly. With Win NT, they rolled them out separately, and people complained they got one without the other. With Win2K, they released them together, and people complained there was too much to change at once, Win XP, they released the workstation separate from Windows Server 2003, and people complained. What’s the constant here? You’re not going to satisfy all of the people all of the time.

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This work by Ted Roche is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States.