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<div name="messageBodySection">Thanks Christof.<br />
<br />
The usecase is just that : it is easier to have symlinks of files/dirs from various locations/filesystems rather than copying or duplicating that data.<br />
<br />
The design from many years was maintaining about 8 PB of NFS filesystem with thousands of symlinks to various locations and the same directories being exported on SMB.<br />
<br />
Now we are migrating most of the data to GPFS keeping the symlinks as they are.<br />
Thus the need to follow symlinks from the GPFS filesystem to the NFS Filesystem.<br />
The client wants to effectively use the symlinks design that works when used on Linux but is not happy to hear that he will have to redo years of work just because GPFS does not support the same.<br />
<br />
I understand that there might be a reason on why CES might not support this, but is it an issue if we run SMB server on the GPFS clients to expose a read only or read write GPFS mounts?</div>
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Regards,<br />
<br />
Lohit</div>
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On May 15, 2018, 6:32 PM -0400, Christof Schmitt <christof.schmitt@us.ibm.com>, wrote:<br />
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<div dir="ltr">> I could use CES, but CES does not support follow-symlinks outside respective SMB export.</div>
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<div dir="ltr">Samba has the 'wide links' option, that we currently do not test and support as part of the mmsmb integration. You can always open a RFE and ask that we support this option in a future release.</div>
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<div dir="ltr">> Follow-symlinks is a however a hard-requirement for to follow links outside GPFS filesystems.</div>
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<div dir="ltr">I might be reading this wrong, but do you actually want symlinks that point to a file or directory outside of the GPFS file system? Could you outline a usecase for that?</div>
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Regards,</div>
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<font size="2" face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif"><font face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif">Christof Schmitt || IBM || Spectrum Scale Development || Tucson, AZ<br />
christof.schmitt@us.ibm.com || <a dir="ltr" href="tel:+1-520-799-2469" x-apple-data-detectors="true" x-apple-data-detectors-type="telephone" x-apple-data-detectors-result="2">+1-520-799-2469</a> (T/L: <a dir="ltr" href="tel:321-2469" x-apple-data-detectors="true" x-apple-data-detectors-type="telephone" x-apple-data-detectors-result="3">321-2469</a>)</font></font></div>
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<blockquote data-history-content-modified="1" dir="ltr" style="border-left:solid #aaaaaa 2px; margin-left:5px; padding-left:5px; direction:ltr; margin-right:0px">----- Original message -----<br />
From: valleru@cbio.mskcc.org<br />
Sent by: gpfsug-discuss-bounces@spectrumscale.org<br />
To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br />
Cc:<br />
Subject: [gpfsug-discuss] SMB server on GPFS clients and Followsymlinks<br />
Date: Tue, May 15, 2018 3:04 PM<br />
<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">Hello All,
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<div>Has anyone tried serving SMB export of GPFS mounts from a SMB server on GPFS client? Is it supported and does it lead to any issues?</div>
<div>I understand that i will not need a redundant SMB server configuration.</div>
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<div>I could use CES, but CES does not support follow-symlinks outside respective SMB export. Follow-symlinks is a however a hard-requirement for to follow links outside GPFS filesystems.</div>
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Thanks,
<div>Lohit</div>
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