I recently upgraded my existing cluster to Pacific and cephadm, and need to reconfigure all the (rotational) OSDs to use NVMe drives for db storage. I think I have a reasonably good idea how that's going to work, but the use of db_slots and limit in the OSD service specification have me scratching my head. Question 1: Does db_slots actually work in the latest version of Pacific? It's listed here https://docs.ceph.com/en/pacific/cephadm/osd/#additional-options but in the advanced case section https://docs.ceph.com/en/pacific/cephadm/osd/#the-advanced-case there's still a note saying it's not implemented. Question 2: If db_slots still *doesn't* work, is there a coherent way to divide up a solid state DB drive for use by a bunch of OSDs when the OSDs may not all be created in one go? At first I thought it was related to limit, but re-reading the advanced specification for a 4th time, I don't think that's the case. Of course this question is moot if db_slots actually works. Any advice or information would be appreciated. ----- Edward Huyer Golisano College of Computing and Information Sciences Rochester Institute of Technology Golisano 70-2373 152 Lomb Memorial Drive Rochester, NY 14623 585-475-6651 erhvks@xxxxxxx<mailto:erhvks@xxxxxxx> Obligatory Legalese: The information transmitted, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy any copies of this information. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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