Yes the MGS is a TCP based setup (not IB), if I recall 'ltcl ping' looked OK but I can test that later this morning and provide feedback.
On Fri, Nov 17, 2017 at 4:48 PM Chris Horn <ho...@cray.com> wrote: > Is the MGS actually on tcp or is it on o2ib? Can you “lctl ping” the MGS > LNet nid from the client where you’re trying to mount? > > > > Chris Horn > > > > *From: *lustre-discuss <lustre-discuss-boun...@lists.lustre.org> on > behalf of Christopher Johnston <chjoh...@gmail.com> > *Date: *Friday, November 17, 2017 at 3:17 PM > *To: *lustre-discuss <lustre-discuss@lists.lustre.org> > *Subject: *[lustre-discuss] 2.10.1 client fails to mount on 2.9 backend > > > > Just tested the new 2.10.1 client against one of my fileservers where I > have 2.9 running. Works with 2.10.0 but not 2.10.1, is this expected? > > > > # mount -t lustre 172.30.69.90:/qstore /mnt > > mount.lustre: mount 172.30.69.90:/qstore at /mnt failed: No such file or > directory > > Is the MGS specification correct? > > Is the filesystem name correct? > > If upgrading, is the copied client log valid? (see upgrade docs) > > > > # dmesg -e | tail -4 > > [Nov17 16:15] LustreError: 22344:0:(ldlm_lib.c:483:client_obd_setup()) > can't add initial connection > > [ +0.009423] LustreError: 22344:0:(obd_config.c:608:class_setup()) setup > MGC172.30.69.90@tcp failed (-2) > > [ +0.009755] LustreError: 22344:0:(obd_mount.c:203:lustre_start_simple()) > MGC172.30.69.90@tcp setup error -2 > > [ +0.010193] LustreError: 22344:0:(obd_mount.c:1505:lustre_fill_super()) > Unable to mount (-2) > > > > -Chris >
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