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?
Regards,
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.
Webert Lima
DevOps Engineer at MAV Tecnologia
Belo Horizonte - Brasil
IRC NICK - WebertRLZ
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