[PVE-User] Ceph MON quorum problem

[Brian :]

Have a mon that runs somewhere that isn't either of those rooms.

On Friday, September 13, 2019, Fabrizio Cuseo <f.cuseo at panservice.it> wrote:
> Hello.
> I am planning a 6 hosts cluster.
>
> 3 hosts are located in the CedA room
> 3 hosts are located in the CedB room
>
> the two rooms are connected with a 2 x 10Gbit fiber (200mt) and in each
room i have 2 x 10Gbit stacked switch and each host have a 2 x 10Gbit (one
for each switch) for Ceph storage.
>
> My need is to have a full redundancy cluster that can survive to CedA (or
CedB) disaster.
>
> I have modified the crush map, so I have a RBD Pool that writes 2 copies
in CedA hosts, and 2 copies in CedB hosts, so a very good redundancy (disk
space is not a problem).
>
> But if I loose one of the rooms, i can't establish the needed quorum.
>
> Some suggestion to have a quick and not too complicated way to satisfy my
need ?
>
> Regards, Fabrizio
>
>
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