Igor, Thank you for pointing this section out to me. The information there is useful, but I would comment for John Dover's interest that the section was hard to find. I'd been on that page several times before, but became overwhelmed by the time I got that far down. Maybe the 'What do I have' section should be at the top and the 'What can I do with it' section should come second? (My personal opinion, of course). It is certainly a challenge with a software project this vast to figure out how to organize the documentation so that it's easy for the unfamiliar to find what they need. -Dave Dave Hall Binghamton University kdhall@binghamton.edu 607-760-2328 (Cell) 607-777-4641 (Office) On 5/5/2020 10:42 AM, Igor Fedotov wrote:
Hi Dave,
wouldn't this help (particularly "Viewing runtime settings" section):
https://docs.ceph.com/docs/nautilus/rados/configuration/ceph-conf/
Thanks,
Igor
On 5/5/2020 2:52 AM, Dave Hall wrote:
Hello,
Sorry if this has been asked before...
A few months ago I deployed a small Nautilus cluster using ceph-ansible. The OSD nodes have multiple spinning drives and a PCI NVMe. Now that the cluster has been stable for a while it's time to start optimizing performance.
While I can tell that there is a part of the NVMe associated with each OSD, I'm trying to verify which BlueStore components are using the NVMe - WAL, DB, Cache - and whether the configuration generated by ceph-ansible (and my settings in osds.yml) is optimal for my hardware.
I've searched around a bit and, while I have found documentation on how to configure, reconfigure, and repair a BlueStore OSD, I haven't found anything on how to query the current configuration.
Could anybody point me to a command or link to documentation on this?
Thanks.
-Dave