Hello, we see the following issue on Lustre 1.6.5.1:
Sometimes an OST mount fails with the error message LustreError: 18644:0:(genops.c:246:class_newdev()) Device lustre-OST0003 already exists, won't add LustreError: 18644:0:(obd_config.c:180:class_attach()) Cannot create device lustre-OST0003 of type obdfilter : -17 Turns out that the device list shows that the obdfilter is somehow in the system already, but in strange state: [r...@doss2 ~]# lctl dl 0 UP mgc mgc10.3.0....@o2ib 1805aeda-6b3a-c265-7f68-299401681273 5 1 UP ost OSS OSS_uuid 3 2 UP obdfilter lustre-OST0002 lustre-OST0002_UUID 7 3 UP obdfilter lustre-OST0000 lustre-OST0000_UUID 7 4 UP obdfilter lustre-OST0001 lustre-OST0001_UUID 7 5 -- obdfilter lustre-OST0003 lustre-OST0003_UUID 5 <--- 6 UP obdfilter lustre-OST0005 lustre-OST0005_UUID 7 7 UP obdfilter lustre-OST0004 lustre-OST0004_UUID 7 Is there any way (expect reboot or unloading lustre modules) to reset or unload this obdfilter? Regards, Erich _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
