<html><body><p>It's unclear what's wrong. I'd have two main suspects: (1) TLS protocol version confusion, due to a difference in GSKit version and/or configuration (e.g. NIST SP800 compliance) on two sides (2) firewall. TLS issues are usually messy and tedious to work though. I'd recommend opening a PMR to facilitate debug data collection and analysis. A lot of gory detail may be needed to figure out what's going on.<br><br>yuri<br><br><img width="16" height="16" src="cid:1__=07BB0AB4DFCF47C28f9e8a93df938690918c07B@" border="0" alt="Inactive hide details for "Simon Thompson (Research Computing - IT Services)" ---09/07/2016 05:37:11 AM---Hi All, I'm trying to"><font color="#424282">"Simon Thompson (Research Computing - IT Services)" ---09/07/2016 05:37:11 AM---Hi All, I'm trying to get some multi cluster thing working between two of our GPFS</font><br><br><font size="2" color="#5F5F5F">From: </font><font size="2">"Simon Thompson (Research Computing - IT Services)" <S.J.Thompson@bham.ac.uk></font><br><font size="2" color="#5F5F5F">To: </font><font size="2">"gpfsug-discuss@spectrumscale.org" <gpfsug-discuss@spectrumscale.org>, </font><br><font size="2" color="#5F5F5F">Date: </font><font size="2">09/07/2016 05:37 AM</font><br><font size="2" color="#5F5F5F">Subject: </font><font size="2">[gpfsug-discuss] Remote cluster mount failing</font><br><font size="2" color="#5F5F5F">Sent by: </font><font size="2">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr width="100%" size="2" align="left" noshade style="color:#8091A5; "><br><br><br><tt>Hi All,<br><br>I'm trying to get some multi cluster thing working between two of our GPFS<br>clusters.<br><br>In the "client" cluster, when trying to mount the "remote" cluster, I get:<br><br># mmmount gpfs<br>Wed 7 Sep 13:33:06 BST 2016: mmmount: Mounting file systems ...<br>mount: mount /dev/gpfs on /gpfs failed: Connection timed out<br>mmmount: Command failed. Examine previous error messages to determine<br>cause.<br><br><br>And in the log file:<br>Wed Sep 7 13:33:07.481 2016: [N] The client side TLS handshake with node<br>10.0.0.182 was cancelled: connection reset by peer (return code 420).<br>Wed Sep 7 13:33:07.486 2016: [N] The client side TLS handshake with node<br>10.0.0.181 was cancelled: connection reset by peer (return code 420).<br>Wed Sep 7 13:33:07.487 2016: [E] Failed to join remote cluster<br>GPFS_STORAGE.CLUSTER<br>Wed Sep 7 13:33:07.488 2016: [W] Command: err 78: mount<br>GPFS_STORAGE.CLUSTER:gpfs<br>Wed Sep 7 13:33:07.489 2016: Connection timed out<br><br>In the remote cluster, I see:<br><br>Wed Sep 7 13:33:07.487 2016: [W] The TLS handshake with node 10.0.0.222<br>failed with error 447 (server side).<br>Wed Sep 7 13:33:07.488 2016: [X] Connection from 10.10.0.35 <c0p174><br>refused, authentication failed<br>Wed Sep 7 13:33:07.489 2016: [E] Killing connection from 10.10.0.35, err<br>703<br>Wed Sep 7 13:33:07.490 2016: Operation not permitted<br><br><br><br>Weirdly though on other nodes in the client cluster this succeeds fine and<br>can mount, so I think I got all the bits in the mmauth and mmremotecluster<br>configured correctly.<br><br>Any suggestions?<br><br>Thanks<br><br>Simon<br><br>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></tt><tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</a></tt><tt><br><br></tt><br><BR>
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