Tiered pools should be able to do this for you. It has been dis-encouraged as a performance gain (ie, the reverse when you have spin drives and want to put a ssd pool in front of it to get ssd perf but hdd price/storage) in some cases, but if you do it for migrations it should probably be worth it, given that a slight perf hit on the backend drives would be acceptable to be able to save money compared to all-ssd pools I guess. https://docs.ceph.com/docs/nautilus/rados/operations/cache-tiering/ Den ons 20 maj 2020 kl 11:12 skrev Khodayar Doustar <doustar@xxxxxxxxxxxx>: > Anyone knows anything about this? > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx