Even with nfs or samba export you're probably okay as long as the application does not attempt to list the directory. Just probe it with stat/open/create/unlink. From: david_johnson at brown.edu To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org> Date: 08/23/2018 11:34 AM Subject: Re: [gpfsug-discuss] Those users.... millions of files per directory - not necessarily a mistake Sent by: gpfsug-discuss-bounces at spectrumscale.org But heaven help you if you export the gpfs on nfs or cifs. -- ddj Dave Johnson On Aug 23, 2018, at 11:23 AM, Marc A Kaplan <makaplan at us.ibm.com> wrote: Millions of files per directory, may well be a mistake... BUT there are some very smart use cases that might take advantage of GPFS having good performance with large directories -- because GPFS uses extensible hashing -- it is better to store millions of files in a single GPFS directory than artificially scatter them among directories based on the mistaken notion that large directories are bad. (Yeah, they are in most implementations, but not in GPFS.) _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20180823/3d278318/attachment.html>