When trying to zap and prepare a disk it fails to find the partitions.
[ceph@ceph0-mon0 ~]$ ceph-deploy -v disk zap
ceph0-node1:/dev/mapper/35000c50031a1c08b
[ ceph_deploy.conf ][ DEBUG ] found configuration file at:
/home/ceph/.cephdeploy.conf
[ ceph_deploy.cli ][ INFO ] Invoked (1.5.21): /usr/bin/ceph-deploy -v disk zap
ceph0-node1:/dev/mapper/35000c50031a1c08b
[ ceph_deploy.osd ][ DEBUG ] zapping /dev/mapper/35000c50031a1c08b on
ceph0-node1
[ ceph0-node1 ][ DEBUG ] connection detected need for sudo
[ ceph0-node1 ][ DEBUG ] connected to host: ceph0-node1
[ ceph0-node1 ][ DEBUG ] detect platform information from remote host
[ ceph0-node1 ][ DEBUG ] detect machine type
[ ceph_deploy.osd ][ INFO ] Distro info: CentOS Linux 7.0.1406 Core
[ ceph0-node1 ][ DEBUG ] zeroing last few blocks of device
[ ceph0-node1 ][ DEBUG ] find the location of an executable
[ ceph0-node1 ][ INFO ] Running command: sudo /usr/sbin/ceph-disk zap
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ DEBUG ] Creating new GPT entries.
[ ceph0-node1 ][ DEBUG ] Warning: The kernel is still using the old partition
table.
[ ceph0-node1 ][ DEBUG ] The new table will be used at the next reboot.
[ ceph0-node1 ][ DEBUG ] GPT data structures destroyed! You may now partition
the disk using fdisk or
[ ceph0-node1 ][ DEBUG ] other utilities.
[ ceph0-node1 ][ DEBUG ] Warning: The kernel is still using the old partition
table.
[ ceph0-node1 ][ DEBUG ] The new table will be used at the next reboot.
[ ceph0-node1 ][ DEBUG ] The operation has completed successfully.
[ ceph_deploy.osd ][ INFO ] calling partx on zapped device
/dev/mapper/35000c50031a1c08b
[ ceph_deploy.osd ][ INFO ] re-reading known partitions will display errors
[ ceph0-node1 ][ INFO ] Running command: sudo partx -a
/dev/mapper/35000c50031a1c08b
Now running prepare fails because it can't find the newly created partitions.
[ceph@ceph0-mon0 ~]$ ceph-deploy -v osd prepare
ceph0-node1:/dev/mapper/35000c50031a1c08b
[ ceph_deploy.conf ][ DEBUG ] found configuration file at:
/home/ceph/.cephdeploy.conf
[ ceph_deploy.cli ][ INFO ] Invoked (1.5.21): /usr/bin/ceph-deploy -v osd
prepare ceph0-node1:/dev/mapper/35000c50031a1c08b
[ ceph_deploy.osd ][ DEBUG ] Preparing cluster ceph disks
ceph0-node1:/dev/mapper/35000c50031a1c08b:
[ ceph0-node1 ][ DEBUG ] connection detected need for sudo
[ ceph0-node1 ][ DEBUG ] connected to host: ceph0-node1
[ ceph0-node1 ][ DEBUG ] detect platform information from remote host
[ ceph0-node1 ][ DEBUG ] detect machine type
[ ceph_deploy.osd ][ INFO ] Distro info: CentOS Linux 7.0.1406 Core
[ ceph_deploy.osd ][ DEBUG ] Deploying osd to ceph0-node1
[ ceph0-node1 ][ DEBUG ] write cluster configuration to
/etc/ceph/{cluster}.conf
[ ceph0-node1 ][ INFO ] Running command: sudo udevadm trigger
--subsystem-match=block --action=add
[ ceph_deploy.osd ][ DEBUG ] Preparing host ceph0-node1 disk
/dev/mapper/35000c50031a1c08b journal None activate False
[ ceph0-node1 ][ INFO ] Running command: sudo ceph-disk -v prepare --fs-type
xfs --cluster ceph -- /dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-osd
--cluster=ceph --show-config-value=fsid
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-conf
--cluster=ceph --name=osd. --lookup osd_mkfs_options_xfs
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-conf
--cluster=ceph --name=osd. --lookup osd_fs_mkfs_options_xfs
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-conf
--cluster=ceph --name=osd. --lookup osd_mount_options_xfs
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-conf
--cluster=ceph --name=osd. --lookup osd_fs_mount_options_xfs
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/ceph-osd
--cluster=ceph --show-config-value=osd_journal_size
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Will colocate journal with data on
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] DEBUG:ceph-disk:Creating journal partition num 2 size
10000 on /dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /sbin/sgdisk
--new=2:0:10000M --change-name=2:ceph journal
--partition-guid=2:b9202d1b-63be-4deb-ad08-0a143a31f4a9
--typecode=2:45b0969e-9b03-4f30-b4c6-b4b80ceff106 --mbrtogpt --
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ DEBUG ] Information: Moved requested sector from 34 to 2048 in
[ ceph0-node1 ][ DEBUG ] order to align on 2048-sector boundaries.
[ ceph0-node1 ][ DEBUG ] Warning: The kernel is still using the old partition
table.
[ ceph0-node1 ][ DEBUG ] The new table will be used at the next reboot.
[ ceph0-node1 ][ DEBUG ] The operation has completed successfully.
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:calling partx on prepared device
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:re-reading known partitions will
display errors
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /sbin/partx -a
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] partx: /dev/mapper/35000c50031a1c08b: error adding
partition 2
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/udevadm
settle
[ ceph0-node1 ][ WARNIN ] DEBUG:ceph-disk:Journal is GPT partition
/dev/disk/by-partuuid/b9202d1b-63be-4deb-ad08-0a143a31f4a9
[ ceph0-node1 ][ WARNIN ] DEBUG:ceph-disk:Creating osd partition on
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /sbin/sgdisk
--largest-new=1 --change-name=1:ceph data
--partition-guid=1:3d89f923-24d4-4db7-ac46-802c625a6af1
--typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be --
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ DEBUG ] Information: Moved requested sector from 20480001 to
20482048 in
[ ceph0-node1 ][ DEBUG ] order to align on 2048-sector boundaries.
[ ceph0-node1 ][ DEBUG ] Warning: The kernel is still using the old partition
table.
[ ceph0-node1 ][ DEBUG ] The new table will be used at the next reboot.
[ ceph0-node1 ][ DEBUG ] The operation has completed successfully.
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /sbin/partprobe
/dev/mapper/35000c50031a1c08b
[ ceph0-node1 ][ WARNIN ] device-mapper: remove ioctl on 35000c50031a1c08b2
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] device-mapper: remove ioctl on 35000c50031a1c08b1
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] Warning: parted was unable to re-read the partition
table on /dev/mapper/35000c50031a1c08b (Device or resource busy). This means
Linux won't know anything about the modifications you made.
[ ceph0-node1 ][ WARNIN ] device-mapper: create ioctl on 35000c50031a1c08b1
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] device-mapper: remove ioctl on 35000c50031a1c08b1
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] device-mapper: create ioctl on 35000c50031a1c08b2
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] device-mapper: remove ioctl on 35000c50031a1c08b2
failed: Device or resource busy
[ ceph0-node1 ][ WARNIN ] INFO:ceph-disk:Running command: /usr/bin/udevadm
settle
[ ceph0-node1 ][ WARNIN ] ceph-disk: Error: partition 1 for
/dev/mapper/35000c50031a1c08b does not appear to exist
[ ceph0-node1 ][ ERROR ] RuntimeError: command returned non-zero exit status: 1
[ ceph_deploy.osd ][ ERROR ] Failed to execute command: ceph-disk -v prepare
--fs-type xfs --cluster ceph -- /dev/mapper/35000c50031a1c08b
[ ceph_deploy ][ ERROR ] GenericError: Failed to create 1 OSDs
However it successfully partitions the disk and they do show up instantly.
lrwxrwxrwx 1 root root 7 Feb 12 17:06 35000c50031a1c08b -> ../dm-2
lrwxrwxrwx 1 root root 8 Feb 12 17:06 35000c50031a1c08b1 -> ../dm-17
lrwxrwxrwx 1 root root 8 Feb 12 17:06 35000c50031a1c08b2 -> ../dm-16
[root@ceph0-node1 mapper]# parted 35000c50031a1c08b
GNU Parted 3.1
Using /dev/dm-2
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: Linux device-mapper (multipath) (dm)
Disk /dev/dm-2: 300GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
2 1049kB 10.5GB 10.5GB ceph journal
1 10.5GB 300GB 290GB ceph data
Help!
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