cache tier use cases

["Roos'lan" <rooslan@xxxxxxxxxxxxxxxxxx>]

Hi community!

I'm wondering what are actual use cases for cache tiering?
Can I expect improvement of performance with scenario where I use ceph with RBD for VMs hosting?

Current pool includes 15 OSD on 10K SAS drives with SSD journal for each 5 OSDs.

Thanks
Ruslan

 

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