[ceph-users] ceph osd different size to create a cluster for Openstack : asking for advice

Hi, I need some guidance from you folks... I am going to deploy a ceph cluster in HCI mode for an openstack platform. My hardware will be : - 03 control nodes : - 27 osd nodes : each node has 03x3.8To nvme + 01x1.9To nvme disks (those disks will all be used as OSDs) In my Openstack I will be creating all sorts of pools : RBD, Cephfs and RGW. I am planning to create two crush rules using the disk size as a parameter. Then divide my pools between the two rules. - RBD to use the 3.8To disks since I need more space here. - Cephfs and RGW to use 1.9To disks. Is this a good configuration? Regards