A power outage shouldn't corrupt your db unless you are doing dangerous async writes. And sharing an SSD for several OSDs on the same host is normal, but not an issue given that you have planned for the failure of hosts. On Thu, Nov 21, 2019 at 9:57 AM 展荣臻（信泰） <zhanrzh_xt@xxxxxxxxxxxxxx> wrote: > > > > In general db is located ssd and 4~5 or more osd share the same ssd. > Considering such a situation that the db is broken due to the power outage of data center, > it will be a disaster. > > > You should design your cluster and crush rules such that a failure of > > a single OSD is not a problem. Preferably such that losing any 1 host > > isn't a problem either. > > > > On Thu, Nov 21, 2019 at 6:32 AM zhanrzh_xt@xxxxxxxxxxxxxx > > <zhanrzh_xt@xxxxxxxxxxxxxx> wrote: > > > > > > Hi,all > > > Suppose the db of bluestore can't read/write,are there some methods to replace bad db with a new one,in luminous. > > > If not, i dare not deploy ceph with bluestore in my production. > > > > > > zhanrzh_xt@xxxxxxxxxxxxxx > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@xxxxxxxxxxxxxx > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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