>> I can remember reading this before. I was hoping you maybe had some >> setup with systemd scripts or maybe udev. > > Yeah, doing this on boot up would be ideal. I was looking really hard into > tuned and other services that claimed can do it, but required plugins or > other stuff did/does not exist and documentation is close to non-existent. > > After spending a couple of days I gave up and went with the simple > script-command version. > > If you come across something that allows easy configuration of this at > boot-time, please let me know.
FWIW, doing this at boot-time only doesn’t address drives that are added/replaced without a reboot. One could simply do so for them manually before deployment, but I thought I should mention it. > I'm throwing my hat in the ring, though I know almost nothing about systemd… In certain ways you’re fortunate ;) > Couldn't you write a script to issue the necessary commands to the desired > drives, then create a system unit that calls it before OSD initialization? The systemd unit file I think accepts an ExecStartPre entry for a command to run before firing up the daemon, eg. /var/lib/ceph/ceph-osd-prestart.sh > a udev rule may be easier I’m going to pretend that you did *not* just drop the U-bomb in polite company ;) _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
