Hello,

> Tue, 3 Sep 2019 11:28:20 +0200
> Yoann Moulin <yoann.mou...@epfl.ch> ==> ceph-users@ceph.io :
>> Is it better to put all WAL on one SSD and all DBs on the other one? Or put 
>> WAL and DB of the first 5 OSDs on the first SSD and the 5 others on
>> the second one.
> 
> I don't know if this has a relevant impact on the latency/speed of the ceph 
> system but we use LVM on top of a SW RAID 1 over two SSDs for WAL & DB on 
> this RAID1.

What is the recommended size for wall and db in my case?

I have :

10x 6TB Disk OSDs (data)
 2x 480G SSD

Best,

-- 
Yoann Moulin
EPFL IC-IT
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