===== Mapeando pool/volume ceph via NBD. =====

  * Utilizado no proxmox com ceph.
  * <font medium/inherit;;initial;;transparent>existe a possibilidade utilizando fuse e map direto rd0…</font>
  * <font medium/inherit;;initial;;transparent>Porem achei muito mais facil utilizado o modulo modprobe nbd</font>

<code>
# Instalação tbm é possivel utilizar rbd nbd ...
apt install rbd-nbd

# Listando os pools
ceph osd pool ls

# Listando os volumes do pool (pool warlock exemplo)
rbd ls warlock

# Filtrando um volume
rbd ls warlock | grep 151

# Mapeando um volume (saida eh o nbd0: depois execute fdisk -l /dev/nbd0 para verificar)
rbd-nbd map warlock/vm-151-disk-0
/dev/nbd0

# Listando volumes mapeados e seu devices.
rbd-nbd list-mapped
/dev/nbd0

# Desassociar o volume do nbd0
rbd-nbd unmap warlock/vm-151-disk-0
rbd-nbd unmap /dev/nbd0</font>

</code>

Benchmark do ambiente CEPH
<code>

rbd bench --io-type read vm-106-disk-1 --pool=Production

</code>


=====  Outros                =====

  * <font medium/inherit;;initial;;transparent>https://www.ic.unicamp.br/~william/howto/ceph/</font>
  * <font medium/inherit;;initial;;transparent>createfs: https://docs.ceph.com/en/mimic/cephfs/createfs/</font>
  * <font medium/inherit;;initial;;transparent>mount: https://docs.ceph.com/en/mimic/cephfs/kernel/</font>
  * <font medium/inherit;;initial;;transparent>mount fuse: https://docs.ceph.com/en/mimic/cephfs/fuse/</font>
  * <font medium/inherit;;initial;;transparent>ceph storage: https://docs.ceph.com/en/mimic/rados/configuration/</font>