[SOLVED] CEPH config

[Ma907xb]

Hello,

During my initial configuration of CEPH I'd like to format some drives on my server before the installation. I use this command to format the drives


ceph-volume lvm zap /dev/sdb --destroy


but i get a runtime error. How do i know the process completed?


root@vmhost3:~# ceph-volume lvm zap /dev/sdb --destroy
--> Zapping: /dev/sdb
Running command: /usr/sbin/wipefs --all /dev/sdb3
stdout: /dev/sdb3: 8 bytes were erased at offset 0x0003f000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x0003e000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x0003d000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x0003c000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x0003b000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x0003a000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x00039000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x00038000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x00037000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x00036000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at offset 0x00035000 (zfs_member): 0c b1 ba 00 00 00 00 00
/dev/sdb3: 8 bytes were erased at
x
x
x
Running command: /bin/dd if=/dev/zero of=/dev/sdb3 bs=1M count=10
stderr: 10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.0436239 s, 240 MB/s
--> Destroying partition since --destroy was used: /dev/sdb3
Running command: /usr/sbin/parted /dev/sdb --script -- rm 3
Running command: /usr/sbin/wipefs --all /dev/sdb2
stdout: /dev/sdb2: 8 bytes were erased at offset 0x00000052 (vfat): 46 41 54 33 32 20 20 20
/dev/sdb2: 1 byte was erased at offset 0x00000000 (vfat): eb
/dev/sdb2: 2 bytes were erased at offset 0x000001fe (vfat): 55 aa
Running command: /bin/dd if=/dev/zero of=/dev/sdb2 bs=1M count=10
stderr: 10+0 records in
10+0 records out
stderr: 10485760 bytes (10 MB, 10 MiB) copied, 0.081308 s, 129 MB/s
--> Destroying partition since --destroy was used: /dev/sdb2
Running command: /usr/sbin/parted /dev/sdb --script -- rm 2
Running command: /usr/sbin/wipefs --all /dev/sdb1
Running command: /bin/dd if=/dev/zero of=/dev/sdb1 bs=1M count=10
stderr: /bin/dd: error writing '/dev/sdb1'
stderr: : No space left on device
stderr: 1+0 records in
0+0 records out
1031168 bytes (1.0 MB, 1007 KiB) copied, 0.00577859 s, 178 MB/s
stderr:
--> RuntimeError: command returned non-zero exit status: 1
root@vmhost3:~#

 

[fiona]

Hi,
how large is partition 1? If it's less than 10MB it would explain why the command failed and it's probably a bug in Ceph you may want to report.
Since you want to destroy all partitions, you should be fine using a tool like parted (be careful to select the right device!) instead.

 

[Ma907xb]

Yes - That partition was under 10mb. I was able to delete that partition with fdisk. I re ran the command and the output was successful.