I'm sorry I have mixed up some information. The actual ratio I have now is 0,0005% (100MB for 20TB data).
Webert Lima
DevOps Engineer at MAV Tecnologia
Belo Horizonte - Brasil
IRC NICK - WebertRLZ
On Wed, May 9, 2018 at 11:32 AM, Webert de Souza Lima <webert.boss@xxxxxxxxx> wrote:
Hello,Currently, I run Jewel + Filestore for cephfs, with SSD-only pools used for cephfs-metadata, and HDD-only pools for cephfs-data. The current metadata/data ratio is something like 0,25% (50GB metadata for 20TB data).Regarding bluestore architecture, assuming I have:- SSDs for WAL+DB- Spinning Disks for bluestore data.would you recommend still store metadata in SSD-Only OSD nodes?If not, is it recommended to dedicate some OSDs (Spindle+SSD for WAL/DB) for cephfs-metadata?If I just have 2 pools (metadata and data) all sharing the same OSDs in the cluster, would it be enough for heavy-write cases?Assuming min_size=2, size=3.Thanks for your thoughts.Regards,Webert LimaDevOps Engineer at MAV TecnologiaBelo Horizonte - BrasilIRC NICK - WebertRLZ
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