HI! Currently I am deploying a small cluster with two nodes. I installed ceph jewel on all nodes and made a basic deployment. After "ceph osd create..." I am now getting "Failed to start Ceph disk activation: /dev/dm-18" on boot. All 28 OSDs were never active. This server has a 14 disk JBOD with 4x fiber using multipath (4x active multibus). We have two servers.
OS: Latest CentOS 7 [root@osd01 ~]# ceph -v > ceph version 10.2.7 (50e863e0f4bc8f4b9e31156de690d765af245185) Command run: > ceph-deploy osd create > osd01.example.local:/dev/mapper/mpatha:/dev/disk/by-partlabel/journal01 There is no error in journalctl, just that the unit failed: > May 16 16:47:33 osd01.example.local systemd[1]: Failed to start Ceph disk > activation: /dev/dm-27. > May 16 16:47:33 osd01.example.local systemd[1]: > ceph-disk@dev-dm\x2d27.service: > main process exited, code=exited, status=124/n/a > May 16 16:47:33 osd01.example.local systemd[1]: ceph-disk@dev-dm\x2d24.service > failed. > May 16 16:47:33 osd01.example.local systemd[1]: Unit > ceph-disk@dev-dm\x2d24.service > entered failed state. [root@osd01 ~]# gdisk -l /dev/mapper/mpatha > GPT fdisk (gdisk) version 0.8.6 > Partition table scan: > MBR: protective > BSD: not present > APM: not present > GPT: present > Found valid GPT with protective MBR; using GPT. > Disk /dev/mapper/mpatha: 976642095 sectors, 465.7 GiB > Logical sector size: 512 bytes > Disk identifier (GUID): DEF0B782-3B7F-4AF5-A0CB-9E2B96C40B13 > Partition table holds up to 128 entries > First usable sector is 34, last usable sector is 976642061 > Partitions will be aligned on 2048-sector boundaries > Total free space is 2014 sectors (1007.0 KiB) > Number Start (sector) End (sector) Size Code Name > 1 2048 976642061 465.7 GiB FFFF ceph data I had problems with multipath in the past when running ceph but this time I was unable to solve the problem. Any ideas? Kind regards, Kevin.
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