I *think* the rotational flag isn't used at OSD creation time, but rather each time the OSD starts to select between options that have _hdd and _ssd values. If I'm mistaken, please do englighten me.
One can use a udev rule to override the kernel's deduced rotational value > On Sep 12, 2024, at 10:08 AM, Frank Schilder <[email protected]> wrote: > > > - How deployed (lvm+dm-cache first, then OSD or other way around): This is > related to the previous question. The order might be important. My guess is > that after attaching the cache the rotational flag from the cache device is > inherited. If this happens before OSD creation, the OSD will be created with > SSD tunings and with HDD tunings otherwise. How did you do it? _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
