[OpenAFS] Windows 8.1, SkyDrive and Roaming Profiles

[Jeffrey Altman]

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Last Wednesday Microsoft released the one and only preview release of
Windows 8.1 in conjunction with the Microsoft Build conference which I
attended.  The one big change relating to file systems is the
integration of SkyDrive into the Shell and its selection as the primary
storage location for end user documents.

The SkyDrive integration adds shell recognition for files that are
located in the locally sync'd copy of the SkyDrive directory tree but
which have not been copied locally.   Microsoft now represents these
files with a new Reparse Point (Tag: 0x80000015) which is a "sparse
file" and an "offline" file.  The file will not be visible to
applications that browse the directory from the command line but will be
displayed in the Explorer Shell and Modern application views of the
SkyDrive directory.

The SkyDrive folder tree is stored in the user's profile at
\Users\<username>\SkyDrive.   When the profile is on NTFS this works
fine.  When the roaming profile is stored in AFS this is going to cause
problems because at logout an error will be generated when attempts are
made to copy this new reparse point to AFS.

I urge organizations to begin testing Windows 8.1 Preview immediately
and to file bug reports with Microsoft as soon as possible.  This is a
feature that will not be altered once Windows 8.1 RTM is cut.   It is
critical that Microsoft hear about issues that will effect their
customers while there is time to make adjustments.

Jeffrey Altman


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