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cliff, old lustre is mounted on /cpfs/fs1 with ngs2mds1 the mds name new lustre will be mount on /cpfs/fs2 with ngsmds1 as the mds name Now after I modified the modprobe.conf I can [EMAIL PROTECTED] ~]# mount -t lustre ngsmds1:/mds001/client /cpfs/fs2 [EMAIL PROTECTED] ~]# mount |grep cpfs config on /cpfs/fs1 type lustre_lite (rw,osc=lov001,mdc=MDC_hal1403_mds2001_MNT_client) ngsmds1:/mds001/client on /cpfs/fs2 type lustre (rw) That is good however If I umount the old Lustre [EMAIL PROTECTED] ~]# umount /cpfs/fs1 and tried to remount the old lustre by [EMAIL PROTECTED] ~]# mount -t lustre ngs2mds1:/mds001/client /cpfs/fs1 mount.lustre: mount(ngs2mds1:/mds001/client, /cpfs/fs1) failed: Input/output error mds nid 0: [EMAIL PROTECTED] mds name: mds001 profile: client options: rw It failed. I can't ping the new lustre or old lustre by [EMAIL PROTECTED] ~]# lctl ping [EMAIL PROTECTED] failed to ping [EMAIL PROTECTED]: Connection timed out [EMAIL PROTECTED] ~]# lctl ping [EMAIL PROTECTED] failed to ping [EMAIL PROTECTED]: No route to host But new lustre is still mounted. In the OLD lustre mds log I have Jan 18 12:45:01 ngs2mds1 crond(pam_unix)[24688]: session opened for user root by (uid=0) Jan 18 12:45:01 ngs2mds1 crond(pam_unix)[24688]: session closed for user root Jan 18 12:45:40 ngs2mds1 kernel: LustreError: 4433:0: (ldlm_lib.c:541:target_handle_connect()) @@@ UUID 'mds001' is not available for connect (no target) [EMAIL PROTECTED] x261416/t0 o38-><?>@<?>:-1 lens 240/0 ref 0 fl Interpret:/0/0 rc 0/0 Jan 18 12:45:40 ngs2mds1 kernel: LustreError: 4433:0: (ldlm_lib.c:1288:target_send_reply_msg()) @@@ processing error (-19) [EMAIL PROTECTED] x261416/t0 o38-><?>@<?>:-1 lens 240/0 ref 0 fl Interpret:/0/0 rc -19/0 However I can umount and remount the new lustre now? [EMAIL PROTECTED] ~]# umount /cpfs/fs2 [EMAIL PROTECTED] ~]# mount -t lustre ngsmds1:/mds001/client /cpfs/fs2 _______________________________________________ Lustre-devel mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-devel
