Den mån 15 nov. 2021 kl 10:18 skrev MERZOUKI, HAMID <hamid.merzo...@atos.net>: > Thanks for your answers Janne Johansson, > "I'm sure you can if you do it even more manually with ceph-volume, but there > should seldom be a need to" > Why do you think "there should seldom be a need to" ?
I meant this as a response to how to handle something like: "I have one drive with only pvcreate run on it, one with pvcreate, vgcreate and lastly one with pvcreate,vgcreate and lvcreate run on it and a named LV to use for OSD data and I want the auto-setup tools to handle this and make the required steps to make WAL on the first, DB on the second and have data on the third" If -for any reason- you have such a setup and these kinds of demands, you are probably doing it wrong or you get to do it all 100% manually for this kind of weird setup. As soon as you start growing into something resembling real world ceph cluster usage with some 5-10-15 OSD hosts with X drives on them each, you will probably get into a situation where drives actually are empty when you get them and where the defaults and auto-setup scripts will work out fine without having to think a lot about these things. > "Yes, upgrades do not contain LVM management, as far as I have ever seen." > But there will be problems if later one existent OSD must be totally > recreated, won't it ? 'Totally recreated' just means you get to run "sgdisk -Z" or "ceph-volume lvm zap" once before remaking a drive into an OSD again, adding this step to your setup routine is very simple in those cases. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
