We are updating the document for the release to make it more clear. "Posix 
compliant" will be replaced with “the file system that complies with the POSIX 
write() semantics”.

As Dana said, the most important issue is write ordering.

Elena
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Elena Pourmal  The HDF Group  http://hdfgroup.org
1800 So. Oak St., Suite 203, Champaign IL 61820
217.531.6112
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




On Mar 16, 2016, at 11:28 AM, Dana Robinson 
<[email protected]<mailto:[email protected]>> wrote:

Hi Andrew,

We do not currently test SWMR on Windows but we would expect it to work on 
NTFS. Basically we need for write ordering to be preserved, which is usually 
true for a straightforward local file system. Parallel file systems like GPFS 
are also generally supported.

Most network file systems (NFS, SMB/Windows file shares, etc.), however, do not 
guarantee write ordering and are not supported under SWMR.

Dana Robinson
Software Engineer
The HDF Group

From: Hdf-forum [mailto:[email protected]] On Behalf Of 
Ryland, Andrew
Sent: Wednesday, March 16, 2016 11:47 AM
To: [email protected]<mailto:[email protected]>
Subject: [Hdf-forum] SWMR requirement to be POSIX compliant

In the “Single Write Multiple Read" (SWMR)” document it says that your file 
system needs to be POSIX compliant. Our software runs on Windows 7, 8 and 10. I 
am finding confusing information about if these O/S’s are POSIX compliant.

Anybody know if the SWMR will work on these O/S’s?


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