[root@ceph-4-2 ceph]# ceph-deploy disk zap ceph-4-3:/dev/nvme0n1
[ceph_deploy.conf][DEBUG ] found configuration file at: /root/.cephdeploy.conf
[ceph_deploy.cli][INFO  ] Invoked (1.5.37): /usr/bin/ceph-deploy disk zap ceph-4-3:/dev/nvme0n1
[ceph_deploy.cli][INFO  ] ceph-deploy options:
[ceph_deploy.cli][INFO  ]  username                      : None
[ceph_deploy.cli][INFO  ]  verbose                       : False
[ceph_deploy.cli][INFO  ]  overwrite_conf                : False
[ceph_deploy.cli][INFO  ]  subcommand                    : zap
[ceph_deploy.cli][INFO  ]  quiet                         : False
[ceph_deploy.cli][INFO  ]  cd_conf                       : <ceph_deploy.conf.cephdeploy.Conf instance at 0x2828c20>
[ceph_deploy.cli][INFO  ]  cluster                       : ceph
[ceph_deploy.cli][INFO  ]  func                          : <function disk at 0x281ec08>
[ceph_deploy.cli][INFO  ]  ceph_conf                     : None
[ceph_deploy.cli][INFO  ]  default_release               : False
[ceph_deploy.cli][INFO  ]  disk                          : [('ceph-4-3', '/dev/nvme0n1', None)]
[ceph_deploy.osd][DEBUG ] zapping /dev/nvme0n1 on ceph-4-3
The authenticity of host 'ceph-4-3 (10.1.0.43)' can't be established.
ECDSA key fingerprint is 88:a4:93:4f:07:bf:85:a2:21:3b:a6:99:b5:15:90:46.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'ceph-4-3,10.1.0.43' (ECDSA) to the list of known hosts.
root@ceph-4-3's password:
root@ceph-4-3's password:
[ceph-4-3][DEBUG ] connected to host: ceph-4-3
[ceph-4-3][DEBUG ] detect platform information from remote host
[ceph-4-3][DEBUG ] detect machine type
[ceph-4-3][DEBUG ] find the location of an executable
[ceph_deploy.osd][INFO  ] Distro info: CentOS Linux 7.3.1611 Core
[ceph-4-3][DEBUG ] zeroing last few blocks of device
[ceph-4-3][DEBUG ] find the location of an executable
[ceph-4-3][INFO  ] Running command: /usr/sbin/ceph-disk zap /dev/nvme0n1
[ceph-4-3][WARNIN] Caution: invalid backup GPT header, but valid main header; regenerating
[ceph-4-3][WARNIN] backup header from main header.
[ceph-4-3][WARNIN]
[ceph-4-3][WARNIN] Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
[ceph-4-3][WARNIN] on the recovery & transformation menu to examine the two tables.
[ceph-4-3][WARNIN]
[ceph-4-3][WARNIN] Warning! One or more CRCs don't match. You should repair the disk!
[ceph-4-3][WARNIN]
[ceph-4-3][DEBUG ] ****************************************************************************
[ceph-4-3][DEBUG ] Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
[ceph-4-3][DEBUG ] verification and recovery are STRONGLY recommended.
[ceph-4-3][DEBUG ] ****************************************************************************
[ceph-4-3][DEBUG ] Warning: The kernel is still using the old partition table.
[ceph-4-3][DEBUG ] The new table will be used at the next reboot.
[ceph-4-3][DEBUG ] GPT data structures destroyed! You may now partition the disk using fdisk or
[ceph-4-3][DEBUG ] other utilities.
[ceph-4-3][DEBUG ] Creating new GPT entries.
[ceph-4-3][DEBUG ] Warning: The kernel is still using the old partition table.
[ceph-4-3][DEBUG ] The new table will be used at the next reboot.
[ceph-4-3][DEBUG ] The operation has completed successfully.

[ceph-4-3][WARNIN] No data was received after 300 seconds, disconnecting...
[root@ceph-4-2 ceph]#