4 Sep
2019
4 Sep
'19
9:32 a.m.
Hello,
Tue, 3 Sep 2019 11:28:20 +0200 Yoann Moulin <yoann.moulin@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