hi,all that is crazy. 1. all my osds are down, but ceph -s tells they are up and in. why? 2. now all osds are down, a vm is using rbd as its disk, and inside vm fio is r/wing the disk , but it hang ,can not be killed. why ? thanks [root at cephosd2-monb ~]# ceph -v ceph version 0.81 (8de9501df275a5fe29f2c64cb44f195130e4a8fc) [root at cephosd2-monb ~]# ceph -s cluster 508634f6-20c9-43bb-bc6f-b777f4bb1651 health HEALTH_WARN mds 0 is laggy monmap e13: 3 mons at {cephosd1-mona=10.154.249.3:6789/0,cephosd2-monb=10.154.249.4:6789/0,cephosd3-monc=10.154.249.5:6789/0}, election epoch 154, quorum 0,1,2 cephosd1-mona,cephosd2-monb,cephosd3-monc mdsmap e21: 1/1/1 up {0=0=up:active(laggy or crashed)} osdmap e196: 5 osds: 5 up, 5 in pgmap v21836: 512 pgs, 5 pools, 3115 MB data, 805 objects 9623 MB used, 92721 MB / 102344 MB avail 512 active+clean -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140909/6d741ce4/attachment.htm>