Hi, I set an environment of 20 servers which include 2 MDSs, 3 MONs and 18 OSDes(3 monitors on 18 OSDes) My version is 0.24.3 and OS is Fedora 14. There's a problem when I was doing the writing tests. Whether I was writing the data or not, some OSDes were randomly marked down and out one by one after a period of time. And when that happened, the whole performance soon got worse and worse. I checked the /var/log/ceph/osd.log but found nothing. So I am curious that is there anyone who has the same problem with me? Or maybe it's just a problem of my hardware......>< -- Best Regards, Sylar Shen -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html