[PVE-User] Ceph server with Ubuntu

[Uwe Sauter]

Then the question is if

a) you'd want to integrate those Ubuntu servers into an existing Ceph cluster (managed by Proxmox) or

b) if you just want to use a separate Ceph cluster in your Proxmox setup where that Ceph cluster is based on your Ubuntu hosts.


Case a) is probably a bad idea due to (possibly) different Ceph versions between Proxmox and Ubuntu.

Case b) should work without problem given the Ubuntu based Ceph cluster has the correct options configured. [1] and [2] should
help in that case. Unfortunatelly I cannot provide the correct options, I can only give you a dump of my PVE 4.4 based setup:

# ceph osd pool ls detail
pool 0 'rbd' replicated size 3 min_size 2 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 flags hashpspool
stripe_width 0
pool 1 'vms' replicated size 3 min_size 2 crush_ruleset 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 1601 flags
hashpspool stripe_width 0

# ceph status
    cluster 982484e6-69bf-490c-9b3a-942a179e759b
     health HEALTH_OK
     monmap e4: 4 mons at {0=XXX.XXX.XXX.XXX:6789/0,1=XXX.XXX.XXX.XXX:6789/0,2=XXX.XXX.XXX.XXX:6789/0,3=XXX.XXX.XXX.XXX:6789/0}
            election epoch 742, quorum 0,1,2,3 0,1,2,3
     osdmap e1650: 12 osds: 12 up, 12 in
            flags sortbitwise,require_jewel_osds
      pgmap v9851050: 320 pgs, 2 pools, 371 GB data, 102 kobjects
            1196 GB used, 5028 GB / 6224 GB avail
                 320 active+clean
  client io 7729 B/s wr, 0 op/s rd, 0 op/s wr




[1] https://pve.proxmox.com/wiki/Ceph_Server#Ceph_Client
[2] https://pve.proxmox.com/wiki/Storage:_RBD

Am 14.08.2017 um 14:40 schrieb Gilberto Nunes:
> Hi
> Just because I already have a lot of Ubuntu Server here and I use it!
> Just wonder...
> Thanks anyway
> 
> 2017-08-14 9:30 GMT-03:00 Uwe Sauter <uwe.sauter.de at gmail.com <mailto:uwe.sauter.de at gmail.com>>:
> 
>     Are there any reasons on your side to use Ubuntu? If you want to stay compatible you could also install Proxmox including Ceph but
>     not use those hosts for virtualization…
> 
> 
>     Am 14.08.2017 um 14:07 schrieb Gilberto Nunes:
>     > Hi
>     >
>     > Regard Ceph, can I use 3 Ubuntu Server 16 Xenial to build a Ceph server to
>     > connecte Proxmox 5.0??? Is here compatibility between then???
>     >
>     > Thanks
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