Re: Minimal MDS for CephFS on OSD hosts

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Quoting Denny Fuchs (linuxmail@xxxxxxxx):
> 
> We have also a 2nd cluster which holds the VMs with also 128Gb Ram and 2 x
> Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz. But with only system disks (ZFS
> Raid1).

Storage doesn't matter for MDS, as they won't use it to store ceph data
(but instead use the (meta)data pool to store meta data).
I would not colocate the MDS daemons with the OSDS, but instead create a
couple of VMs (active / standby) and give them as much RAM as you
possibly can.

Gr. Stefan

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