Hi,
Lustre module is loaded. I am getting bellow errors in /var/log/messaged while mounting mdt. Nov 7 14:10:03 mds1 kernel: LDISKFS-fs (dm-2): mounted filesystem with ordered data mode. Opts: user_xattr,errors=remount-ro,no_mbcache,nodelalloc Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(ldlm_lib.c:483:client_obd_setup()) can't add initial connection Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(obd_config.c:608:class_setup()) setup MGC10.2.1.204@o2ib failed (-2) Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(obd_mount.c:202:lustre_start_simple()) MGC10.2.1.204@o2ib setup error -2 Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(obd_mount_server.c:1573:server_put_super()) no obd home-MDT0000 Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(obd_mount_server.c:132:server_deregister_mount()) home-MDT0000 not registered Nov 7 14:10:03 mds1 kernel: Lustre: server umount home-MDT0000 complete Nov 7 14:10:03 mds1 kernel: LustreError: 4852:0:(obd_mount.c:1504:lustre_fill_super()) Unable to mount (-2) Regards, Parag From: Ben Evans [mailto:bev...@cray.com] Sent: Wednesday, November , 2017 6:19 PM To: Raj; Parag Khuraswar Cc: Lustre discussion Subject: Re: [lustre-discuss] mdt mounting error On the node in question Try: lsmod | grep lustre followed by: modprobe lustre I'm betting the modules aren't loaded for some reason, generally that reason is found in dmesg. From: lustre-discuss <lustre-discuss-boun...@lists.lustre.org> on behalf of Raj <rajgau...@gmail.com> Date: Wednesday, November 1, 2017 at 7:48 AM To: Parag Khuraswar <para...@citilindia.com> Cc: Lustre discussion <lustre-discuss@lists.lustre.org> Subject: Re: [lustre-discuss] mdt mounting error Parag, I have not tested two FS using a common MGT and I don't know whether it is supported. On Wed, Nov 1, 2017 at 6:37 AM Parag Khuraswar <para...@citilindia.com> wrote: Hi Raj, But I have two file systems, And I think I can use one mgt for two filesystems. Please correct me if I am wrong. Regards, Parag On 2017-11-01 16:56, Raj wrote: > The following can contribute to this issue: > - Missing FS name in mgt creation (it must be <=9 character long): > --fsname= > mkfs.lustre --servicenode=10.2.1.204@o2ib > --servicenode=10.2.1.205@o2ib --FSNAME=HOME --mgs /dev/mapper/mpathc > > - verify if /mdt directory exists > > On Wed, Nov 1, 2017 at 6:16 AM Raj <rajgau...@gmail.com> wrote: > >> What options in mkfs.lustre did you use to format with lustre? >> >> On Wed, Nov 1, 2017 at 6:14 AM Parag Khuraswar >> <para...@citilindia.com> wrote: >> >> Hi Raj, >> >> Yes, /dev/mapper/mpatha available. >> >> I could format and mount using ext4. >> >> Regards, >> >> Parag >> >> FROM: Raj [mailto:rajgau...@gmail.com] >> SENT: Wednesday, November , 2017 4:39 PM >> TO: Parag Khuraswar; Lustre discussion >> SUBJECT: Re: [lustre-discuss] mdt mounting error >> >> Parag, >> Is the device /dev/mapper/mpatha available? >> If not, the multipathd may not have started or the multipath >> configuration may not be correct. >> >> On Wed, Nov 1, 2017 at 5:18 AM Parag Khuraswar >> <para...@citilindia.com> wrote: >> >> Hi, >> >> I am getting below error while mounting mdt. Mgt is mounted. >> >> Please suggest >> >> [root@mds2 ~]# mount -t lustre /dev/mapper/mpatha /mdt >> >> mount.lustre: mount /dev/mapper/mpatha at /mdt 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) >> >> Regards, >> >> Parag >> >> _______________________________________________ >> lustre-discuss mailing list >> lustre-discuss@lists.lustre.org >> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
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