Hi, I just upgraded 2.1.5 to 2.1.6 and my "lfs quotacheck -u /lustre" gives errors: LustreError: 5027:0:(ldlm_lib.c:2464:target_handle_dqacq_callback()) dqacq/dqrel failed! (rc:-5) LustreError: 5027:0:(ldlm_lib.c:2464:target_handle_dqacq_callback()) dqacq/dqrel failed! (rc:-5) LustreError: 3354:0:(quota_context.c:707:dqacq_completion()) acquire qunit got error! (rc:-5) LustreError: 3354:0:(quota_context.c:707:dqacq_completion()) Skipped 17 previous similar messages LustreError: 5027:0:(ldlm_lib.c:2464:target_handle_dqacq_callback()) dqacq/dqrel failed! (rc:-5) In my ost and mdt I have: mdt.quota_type=ug and ost.quota_type=ug are setted by tunefs.lustre after client mount I run; lfs quotaon -u /lustre What is wrong here? Thank you beforehand Arman.