About use same SSD for OS and Journal

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Hi,
     Here my scenario :
I will have a small cluster (4 nodes) with 4 (4 TB) OSD's per node.

I will have OS installed on two SSD in raid 1 configuration.

Is one of you have successfully and efficiently a Ceph cluster that is 
built with Journal on a separate partition on the OS SSD's?

I know that it may occur a lot of IO on the Journal SSD and I'm scared 
of have my OS suffer from too much IO.

Any background experience?

Martin

-- 
Martin Catudal
Responsable TIC
Ressources Metanor Inc
Ligne directe: (819) 218-2708
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