Hello Boris, I have one server monitor up and two other servers of the cluster are also up (These two servers are not monitors ) . I have four other servers down (the boot disk is out) but the osd data disks are safe. I reinstalled the OS on a new SSD disk. How can I rebuild my cluster with only one mons. If you would like, you can join me for a meeting. I will give you more information about the cluster. Thanks for your help, I'm very stuck because the data is present but I don't know how to add the old osd in the cluster to recover the data. Le jeu. 2 nov. 2023 à 11:55, Boris Behrens <bb@xxxxxxxxx> a écrit : > Hi Mohamed, > are all mons down, or do you still have at least one that is running? > > AFAIK: the mons save their DB on the normal OS disks, and not within the > ceph cluster. > So if all mons are dead, which mean the disks which contained the mon data > are unrecoverable dead, you might need to bootstrap a new cluster and add > the OSDs to the new cluster. This will likely include tinkering with cephx > authentication, so you don't wipe the old OSD data. > > If you still have at least ONE mon alive, you can shut it down, and remove > all the other mons from the monmap and start it again. You CAN have > clusters with only one mon. > > Or is did your host just lost the boot disk and you just need to bring it > up somehow? losing 4x2 NVME disks at the same time, sounds a bit strange. > > Am Do., 2. Nov. 2023 um 11:34 Uhr schrieb Mohamed LAMDAOUAR < > mohamed.lamdaouar@xxxxxxx>: > > > Hello, > > > > I have 7 machines on CEPH cluster, the service ceph runs on a docker > > container. > > Each machine has 4 hdd of data (available) and 2 nvme sssd (bricked) > > During a reboot, the ssd bricked on 4 machines, the data are available > on > > the HDD disk but the nvme is bricked and the system is not available. is > it > > possible to recover the data of the cluster (the data disk are all > > available) > > _______________________________________________ > > ceph-users mailing list -- ceph-users@xxxxxxx > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > > > -- > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im > groüen Saal. > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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