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<div class="moz-cite-prefix">Allo<br>
<br>
See gpfs_set_times_path() in gpfs.h<br>
<br>
Best,<br>
<br>
Jez<br>
<br>
<br>
On 01/10/2026 14:34, Jonathan Buzzard via gpfsug-discuss wrote:<br>
</div>
<blockquote type="cite" cite="mid:be22e0f2-8bc4-4770-9a67-81b2016d074a@strath.ac.uk">
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<br>
<br>
<br>
On 01/10/2026 14:22, Ahmed Essam Mahrous Gaber Elmazaty via gpfsug- <br>
discuss wrote: <br>
<blockquote type="cite"><br>
In addition to rsync, we have migrated to GPFS using AFM and it <br>
preserves all the metadata including modification timestamps Best <br>
regards, <br>
</blockquote>
If it does then a GPFS API must exist even if undocumented for modifying <br>
it. However I don't think it does. <br>
<br>
Note that creation/birth time is not POSIX and GPFS only acquired it in <br>
version 3.2 from memory, at the same time as MS-DOS attributes were <br>
added. Presumably added as part of being able to mount GPFS on Windows, <br>
with the fun fact you needed a GPFS file system created under 3.2 or <br>
later to do so. <br>
<br>
It is a common misconception that ctime is a creation time, it is in <br>
fact the time you last changed permissions. <br>
<br>
I am talking about the "Creation Time" as reported by mmlsattr -L or on <br>
XFS the Birth time you see on when stating the file. <br>
<br>
<br>
JAB. <br>
<br>
-- <br>
Jonathan A. Buzzard Tel: +44141-5483420 <br>
HPC System Administrator, ARCHIE-WeSt. <br>
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG <br>
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